./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/min_max_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/min_max_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 5731759e27f65811d3eb90851daa5d4a6db5907c 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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_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/min_max_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 5731759e27f65811d3eb90851daa5d4a6db5907c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 07:19:50,801 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:19:50,802 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:19:50,810 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:19:50,811 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:19:50,811 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:19:50,812 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:19:50,813 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:19:50,814 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:19:50,815 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:19:50,816 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:19:50,816 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:19:50,816 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:19:50,817 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:19:50,818 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:19:50,818 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:19:50,819 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:19:50,821 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:19:50,822 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:19:50,824 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:19:50,825 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:19:50,825 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:19:50,827 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:19:50,827 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:19:50,827 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:19:50,828 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:19:50,829 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:19:50,830 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:19:50,830 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:19:50,831 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:19:50,831 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:19:50,832 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:19:50,832 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:19:50,832 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:19:50,833 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:19:50,833 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:19:50,833 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 07:19:50,844 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:19:50,844 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:19:50,845 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:19:50,845 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:19:50,845 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 07:19:50,845 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 07:19:50,845 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 07:19:50,845 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 07:19:50,846 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 07:19:50,846 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 07:19:50,846 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 07:19:50,846 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 07:19:50,846 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 07:19:50,847 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:19:50,847 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:19:50,847 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:19:50,847 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:19:50,847 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:19:50,847 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:19:50,848 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:19:50,848 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:19:50,848 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:19:50,848 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:19:50,848 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:19:50,848 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:19:50,848 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:19:50,849 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:19:50,849 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:19:50,849 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:19:50,849 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:19:50,849 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:19:50,849 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:19:50,850 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:19:50,850 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 07:19:50,850 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:19:50,850 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:19:50,850 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 07:19:50,850 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_1926395a-a016-464d-af90-724e0580bb70/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 -> 5731759e27f65811d3eb90851daa5d4a6db5907c [2018-11-23 07:19:50,875 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:19:50,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:19:50,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:19:50,887 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:19:50,887 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:19:50,887 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/../../sv-benchmarks/c/heap-data/min_max_true-unreach-call.i [2018-11-23 07:19:50,921 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/data/e3db53a1f/38cb51c4a2da47fb9030eb493d04adcc/FLAG13ef82c73 [2018-11-23 07:19:51,345 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:19:51,346 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/sv-benchmarks/c/heap-data/min_max_true-unreach-call.i [2018-11-23 07:19:51,352 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/data/e3db53a1f/38cb51c4a2da47fb9030eb493d04adcc/FLAG13ef82c73 [2018-11-23 07:19:51,360 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/data/e3db53a1f/38cb51c4a2da47fb9030eb493d04adcc [2018-11-23 07:19:51,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:19:51,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:19:51,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:19:51,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:19:51,366 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:19:51,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388bc786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51, skipping insertion in model container [2018-11-23 07:19:51,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:19:51,400 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:19:51,585 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:19:51,591 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:19:51,664 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:19:51,689 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:19:51,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51 WrapperNode [2018-11-23 07:19:51,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:19:51,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:19:51,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:19:51,690 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:19:51,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:19:51,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:19:51,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:19:51,712 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:19:51,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (1/1) ... [2018-11-23 07:19:51,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:19:51,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:19:51,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:19:51,729 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:19:51,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:19:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 07:19:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 07:19:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 07:19:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:19:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:19:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:19:51,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:19:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 07:19:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 07:19:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:19:51,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:19:51,987 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:19:51,987 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 07:19:51,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:19:51 BoogieIcfgContainer [2018-11-23 07:19:51,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:19:51,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:19:51,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:19:51,991 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:19:51,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:19:51" (1/3) ... [2018-11-23 07:19:51,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea27421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:19:51, skipping insertion in model container [2018-11-23 07:19:51,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:51" (2/3) ... [2018-11-23 07:19:51,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea27421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:19:51, skipping insertion in model container [2018-11-23 07:19:51,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:19:51" (3/3) ... [2018-11-23 07:19:51,994 INFO L112 eAbstractionObserver]: Analyzing ICFG min_max_true-unreach-call.i [2018-11-23 07:19:52,001 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:19:52,008 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-23 07:19:52,020 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-23 07:19:52,039 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:19:52,039 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:19:52,039 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:19:52,039 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:19:52,040 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:19:52,040 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:19:52,040 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:19:52,040 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:19:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-23 07:19:52,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 07:19:52,055 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:52,056 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:52,059 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:52,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:52,064 INFO L82 PathProgramCache]: Analyzing trace with hash -488073340, now seen corresponding path program 1 times [2018-11-23 07:19:52,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:52,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:52,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:52,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:52,109 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:52,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:19:52,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 07:19:52,167 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:19:52,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 07:19:52,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 07:19:52,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 07:19:52,181 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-11-23 07:19:52,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:52,192 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2018-11-23 07:19:52,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 07:19:52,193 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-23 07:19:52,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:52,199 INFO L225 Difference]: With dead ends: 39 [2018-11-23 07:19:52,199 INFO L226 Difference]: Without dead ends: 21 [2018-11-23 07:19:52,202 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 07:19:52,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-23 07:19:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-23 07:19:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 07:19:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2018-11-23 07:19:52,225 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2018-11-23 07:19:52,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:52,225 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-11-23 07:19:52,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 07:19:52,225 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-11-23 07:19:52,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 07:19:52,226 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:52,226 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:52,226 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:52,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:52,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1459194737, now seen corresponding path program 1 times [2018-11-23 07:19:52,227 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:52,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:52,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:52,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:52,229 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:52,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:52,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:19:52,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:19:52,304 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:19:52,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:19:52,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:19:52,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:19:52,305 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 4 states. [2018-11-23 07:19:52,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:52,339 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2018-11-23 07:19:52,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 07:19:52,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-23 07:19:52,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:52,340 INFO L225 Difference]: With dead ends: 34 [2018-11-23 07:19:52,340 INFO L226 Difference]: Without dead ends: 23 [2018-11-23 07:19:52,341 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 07:19:52,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-23 07:19:52,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-23 07:19:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-23 07:19:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2018-11-23 07:19:52,343 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 12 [2018-11-23 07:19:52,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:52,343 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2018-11-23 07:19:52,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:19:52,344 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-11-23 07:19:52,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 07:19:52,344 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:52,344 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:52,344 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:52,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:52,344 INFO L82 PathProgramCache]: Analyzing trace with hash -30554087, now seen corresponding path program 1 times [2018-11-23 07:19:52,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:52,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:52,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:52,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:52,346 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:52,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:52,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:19:52,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:19:52,478 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:19:52,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:19:52,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:19:52,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:19:52,479 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2018-11-23 07:19:52,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:52,565 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-11-23 07:19:52,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:19:52,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-23 07:19:52,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:52,566 INFO L225 Difference]: With dead ends: 32 [2018-11-23 07:19:52,566 INFO L226 Difference]: Without dead ends: 30 [2018-11-23 07:19:52,566 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:19:52,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-23 07:19:52,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-11-23 07:19:52,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 07:19:52,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-23 07:19:52,569 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17 [2018-11-23 07:19:52,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:52,569 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-23 07:19:52,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:19:52,569 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-23 07:19:52,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 07:19:52,569 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:52,569 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:52,570 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:52,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:52,570 INFO L82 PathProgramCache]: Analyzing trace with hash 702419131, now seen corresponding path program 1 times [2018-11-23 07:19:52,570 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:52,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:52,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:52,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:52,571 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:52,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:19:52,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 07:19:52,715 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:19:52,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 07:19:52,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 07:19:52,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-23 07:19:52,716 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 8 states. [2018-11-23 07:19:52,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:52,841 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-11-23 07:19:52,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:19:52,842 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-11-23 07:19:52,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:52,843 INFO L225 Difference]: With dead ends: 44 [2018-11-23 07:19:52,843 INFO L226 Difference]: Without dead ends: 42 [2018-11-23 07:19:52,843 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-23 07:19:52,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-23 07:19:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2018-11-23 07:19:52,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 07:19:52,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-11-23 07:19:52,847 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 19 [2018-11-23 07:19:52,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:52,848 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-11-23 07:19:52,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 07:19:52,848 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-11-23 07:19:52,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 07:19:52,848 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:52,848 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:52,849 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:52,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:52,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1382477501, now seen corresponding path program 1 times [2018-11-23 07:19:52,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:52,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:52,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:52,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:52,850 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:52,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:52,960 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:19:52,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 07:19:52,960 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:19:52,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 07:19:52,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 07:19:52,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:19:52,961 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 9 states. [2018-11-23 07:19:53,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:53,075 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-11-23 07:19:53,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 07:19:53,075 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-11-23 07:19:53,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:53,076 INFO L225 Difference]: With dead ends: 37 [2018-11-23 07:19:53,076 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 07:19:53,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-11-23 07:19:53,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 07:19:53,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2018-11-23 07:19:53,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-23 07:19:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-23 07:19:53,080 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 19 [2018-11-23 07:19:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:53,080 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-23 07:19:53,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 07:19:53,081 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-23 07:19:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 07:19:53,081 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:53,081 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:53,081 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:53,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:53,082 INFO L82 PathProgramCache]: Analyzing trace with hash 691549358, now seen corresponding path program 1 times [2018-11-23 07:19:53,082 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:53,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:53,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:53,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:53,083 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:53,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:53,168 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:19:53,168 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:19:53,169 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2018-11-23 07:19:53,170 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [18], [22], [25], [32], [41], [44], [45], [48], [50], [57], [59], [64], [65], [66] [2018-11-23 07:19:53,193 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:19:53,194 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:19:53,348 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:19:53,349 INFO L272 AbstractInterpreter]: Visited 20 different actions 35 times. Merged at 14 different actions 14 times. Never widened. Performed 269 root evaluator evaluations with a maximum evaluation depth of 3. Performed 269 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 34 variables. [2018-11-23 07:19:53,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:53,364 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:19:53,365 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:19:53,365 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:19:53,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:53,373 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:19:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:53,404 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:19:53,436 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:19:53,440 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:19:53,440 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,444 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:19:53,455 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:19:53,455 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,456 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,465 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,465 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2018-11-23 07:19:53,477 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:19:53,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:19:53,479 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,481 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,486 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:19:53,488 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:19:53,489 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,490 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,493 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,493 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-11-23 07:19:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:53,503 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:19:53,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:53,542 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:19:53,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 7 [2018-11-23 07:19:53,543 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:19:53,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:19:53,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:19:53,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:19:53,543 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 7 states. [2018-11-23 07:19:53,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:53,597 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2018-11-23 07:19:53,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:19:53,597 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-23 07:19:53,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:53,598 INFO L225 Difference]: With dead ends: 48 [2018-11-23 07:19:53,598 INFO L226 Difference]: Without dead ends: 32 [2018-11-23 07:19:53,598 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:19:53,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-23 07:19:53,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-23 07:19:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 07:19:53,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2018-11-23 07:19:53,602 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 22 [2018-11-23 07:19:53,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:53,602 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2018-11-23 07:19:53,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:19:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-11-23 07:19:53,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 07:19:53,603 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:53,603 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:53,603 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:53,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:53,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1352220842, now seen corresponding path program 2 times [2018-11-23 07:19:53,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:53,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:53,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:53,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:53,605 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:53,682 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 07:19:53,682 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:19:53,682 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:19:53,682 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:19:53,682 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:19:53,682 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:19:53,682 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:19:53,689 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:19:53,689 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 07:19:53,710 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 07:19:53,710 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:19:53,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:19:53,714 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 07:19:53,716 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-23 07:19:53,717 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,718 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,719 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,719 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-11-23 07:19:53,738 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-23 07:19:53,739 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:19:53,740 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,741 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,742 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,742 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-23 07:19:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 07:19:53,743 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:19:53,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:19:53,771 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:19:53,772 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,773 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:53,774 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:5 [2018-11-23 07:19:53,789 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 07:19:53,804 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:19:53,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2018-11-23 07:19:53,804 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:19:53,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 07:19:53,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 07:19:53,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-11-23 07:19:53,804 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 9 states. [2018-11-23 07:19:53,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:53,918 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2018-11-23 07:19:53,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:19:53,919 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2018-11-23 07:19:53,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:53,920 INFO L225 Difference]: With dead ends: 90 [2018-11-23 07:19:53,920 INFO L226 Difference]: Without dead ends: 71 [2018-11-23 07:19:53,920 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-23 07:19:53,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-23 07:19:53,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 41. [2018-11-23 07:19:53,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-23 07:19:53,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-11-23 07:19:53,926 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 27 [2018-11-23 07:19:53,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:53,926 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-11-23 07:19:53,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 07:19:53,926 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-11-23 07:19:53,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 07:19:53,927 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:53,927 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:53,927 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:53,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:53,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1094055404, now seen corresponding path program 1 times [2018-11-23 07:19:53,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:53,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:53,928 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:19:53,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:53,928 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:54,090 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:54,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:19:54,091 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:19:54,091 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-11-23 07:19:54,091 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [18], [22], [25], [27], [32], [41], [44], [45], [48], [50], [57], [59], [64], [65], [66] [2018-11-23 07:19:54,092 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:19:54,093 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:19:54,153 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:19:54,153 INFO L272 AbstractInterpreter]: Visited 21 different actions 37 times. Merged at 14 different actions 14 times. Never widened. Performed 275 root evaluator evaluations with a maximum evaluation depth of 3. Performed 275 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 34 variables. [2018-11-23 07:19:54,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:54,160 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:19:54,160 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:19:54,160 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:19:54,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:54,170 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:19:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:54,190 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:19:54,194 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:19:54,194 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,200 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,200 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:19:54,247 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:54,248 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:54,248 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:19:54,249 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,265 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:19:54,268 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:19:54,268 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,270 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:19:54,288 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:19:54,289 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,291 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,307 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 07:19:54,311 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:19:54,313 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:54,315 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:19:54,315 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,319 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,323 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,333 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,333 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:77, output treesize:44 [2018-11-23 07:19:54,391 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2018-11-23 07:19:54,393 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 07:19:54,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,397 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,404 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:19:54,406 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:19:54,406 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,408 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,413 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 07:19:54,413 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:60, output treesize:34 [2018-11-23 07:19:54,438 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 07:19:54,443 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-23 07:19:54,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,450 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,450 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-11-23 07:19:54,451 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,455 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,456 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:38, output treesize:5 [2018-11-23 07:19:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:54,461 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:19:54,547 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:19:54,553 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:19:54,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:19:54,558 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:64 [2018-11-23 07:19:54,621 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2018-11-23 07:19:54,626 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,636 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 64 [2018-11-23 07:19:54,688 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2018-11-23 07:19:54,689 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,691 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,691 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,692 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-23 07:19:54,692 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,697 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,698 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,699 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 29 [2018-11-23 07:19:54,699 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,736 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,736 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,737 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2018-11-23 07:19:54,738 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,740 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,741 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,742 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,742 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,743 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,744 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,745 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 50 [2018-11-23 07:19:54,745 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,771 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:19:54,794 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2018-11-23 07:19:54,794 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,811 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2018-11-23 07:19:54,825 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-23 07:19:54,825 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,827 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,828 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,828 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2018-11-23 07:19:54,829 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,830 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,831 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,831 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:19:54,832 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,843 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:19:54,864 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:19:54,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 96 [2018-11-23 07:19:54,884 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,900 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,901 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,902 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,902 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,912 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 107 [2018-11-23 07:19:54,987 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,987 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,988 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,988 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,989 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,989 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,990 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2018-11-23 07:19:54,990 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:54,994 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,995 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,996 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,996 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,997 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,997 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:54,998 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 49 [2018-11-23 07:19:54,999 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,034 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,034 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,035 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-23 07:19:55,035 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,037 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,037 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,038 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 07:19:55,038 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,066 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:19:55,168 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,169 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,171 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,171 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,172 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,179 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 107 [2018-11-23 07:19:55,232 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,233 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 07:19:55,234 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,235 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,236 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-23 07:19:55,236 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,268 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,269 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,269 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,270 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,270 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,271 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,271 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 49 [2018-11-23 07:19:55,272 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,274 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,274 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,275 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,275 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,276 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,277 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,277 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2018-11-23 07:19:55,278 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,310 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:19:55,375 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 74 [2018-11-23 07:19:55,375 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,430 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2018-11-23 07:19:55,431 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,482 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,482 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,483 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 64 [2018-11-23 07:19:55,501 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,503 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2018-11-23 07:19:55,504 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,506 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,507 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,507 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:19:55,508 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,517 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:19:55,626 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 71 [2018-11-23 07:19:55,627 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,835 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,842 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 63 [2018-11-23 07:19:55,886 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,887 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,888 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 07:19:55,889 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,890 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,891 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-23 07:19:55,892 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2018-11-23 07:19:55,894 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,926 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,926 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,927 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-23 07:19:55,927 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,929 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,929 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,930 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,930 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,931 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,931 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,932 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 49 [2018-11-23 07:19:55,932 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:55,947 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:19:55,984 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,984 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,985 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,986 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,986 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:55,994 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 104 [2018-11-23 07:19:56,037 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,038 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,038 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-11-23 07:19:56,039 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,040 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,040 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,041 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-11-23 07:19:56,041 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,065 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,066 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,066 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,066 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,067 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,067 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,068 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 46 [2018-11-23 07:19:56,068 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,070 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,070 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,071 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,071 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,071 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,072 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,072 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 46 [2018-11-23 07:19:56,073 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,094 INFO L267 ElimStorePlain]: Start of recursive call 37: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:19:56,119 INFO L267 ElimStorePlain]: Start of recursive call 14: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:19:56,129 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 62 [2018-11-23 07:19:56,135 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2018-11-23 07:19:56,190 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2018-11-23 07:19:56,190 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,205 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,205 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2018-11-23 07:19:56,207 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,214 INFO L267 ElimStorePlain]: Start of recursive call 43: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,251 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,252 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:56,252 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 51 [2018-11-23 07:19:56,253 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,272 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-23 07:19:56,273 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,291 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:19:56,291 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,319 INFO L267 ElimStorePlain]: Start of recursive call 42: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:19:56,342 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 5 xjuncts. [2018-11-23 07:19:56,342 INFO L202 ElimStorePlain]: Needed 48 recursive calls to eliminate 5 variables, input treesize:70, output treesize:61 [2018-11-23 07:19:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:56,398 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:19:56,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 23 [2018-11-23 07:19:56,398 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:19:56,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 07:19:56,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 07:19:56,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2018-11-23 07:19:56,399 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 16 states. [2018-11-23 07:19:56,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:56,696 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2018-11-23 07:19:56,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 07:19:56,696 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 27 [2018-11-23 07:19:56,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:56,697 INFO L225 Difference]: With dead ends: 71 [2018-11-23 07:19:56,697 INFO L226 Difference]: Without dead ends: 69 [2018-11-23 07:19:56,697 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2018-11-23 07:19:56,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-23 07:19:56,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 55. [2018-11-23 07:19:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-23 07:19:56,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2018-11-23 07:19:56,703 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 27 [2018-11-23 07:19:56,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:56,704 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2018-11-23 07:19:56,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 07:19:56,704 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2018-11-23 07:19:56,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 07:19:56,704 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:56,704 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:56,705 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:56,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:56,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1931629204, now seen corresponding path program 1 times [2018-11-23 07:19:56,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:56,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:56,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:56,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:56,706 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:56,831 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:56,831 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:19:56,831 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:19:56,831 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-11-23 07:19:56,831 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [18], [20], [22], [25], [32], [41], [44], [45], [48], [50], [57], [59], [64], [65], [66] [2018-11-23 07:19:56,833 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:19:56,833 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:19:56,876 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:19:56,880 INFO L272 AbstractInterpreter]: Visited 21 different actions 37 times. Merged at 14 different actions 14 times. Never widened. Performed 275 root evaluator evaluations with a maximum evaluation depth of 3. Performed 275 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 34 variables. [2018-11-23 07:19:56,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:56,882 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:19:56,882 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:19:56,883 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:19:56,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:56,901 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:19:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:56,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:19:56,922 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:19:56,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,940 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:19:56,967 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:56,968 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:56,969 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:19:56,969 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,983 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:19:56,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:19:56,985 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:56,988 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,002 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 07:19:57,006 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:19:57,011 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:57,013 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:19:57,013 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,017 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,022 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,031 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:19:57,033 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:19:57,034 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,036 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,043 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,043 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:62, output treesize:29 [2018-11-23 07:19:57,076 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-23 07:19:57,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2018-11-23 07:19:57,079 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,082 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:19:57,090 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:19:57,090 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,092 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,096 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,096 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:13 [2018-11-23 07:19:57,113 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:19:57,115 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,115 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-11-23 07:19:57,116 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,118 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,119 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:3 [2018-11-23 07:19:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:57,121 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:19:57,153 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:19:57,155 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:19:57,158 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:19:57,159 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:29 [2018-11-23 07:19:57,196 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 34 [2018-11-23 07:19:57,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2018-11-23 07:19:57,213 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 6 [2018-11-23 07:19:57,214 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2018-11-23 07:19:57,231 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-23 07:19:57,240 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:19:57,263 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-11-23 07:19:57,264 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,265 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-11-23 07:19:57,266 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,285 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 42 [2018-11-23 07:19:57,306 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2018-11-23 07:19:57,306 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-11-23 07:19:57,308 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,310 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,316 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2018-11-23 07:19:57,317 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:57,319 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,320 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,327 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 49 [2018-11-23 07:19:57,328 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:57,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:19:57,353 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,365 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:19:57,376 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:19:57,381 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2018-11-23 07:19:57,382 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,383 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,383 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-11-23 07:19:57,383 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,391 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:19:57,391 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,401 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:19:57,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 59 [2018-11-23 07:19:57,420 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-11-23 07:19:57,420 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,482 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 44 [2018-11-23 07:19:57,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2018-11-23 07:19:57,502 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-23 07:19:57,504 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,506 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,512 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 51 [2018-11-23 07:19:57,514 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:57,515 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,517 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,523 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 51 [2018-11-23 07:19:57,524 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:57,549 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:19:57,549 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,562 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:19:57,621 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,621 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,622 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2018-11-23 07:19:57,622 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,673 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,675 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,685 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2018-11-23 07:19:57,723 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,724 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:57,724 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,725 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2018-11-23 07:19:57,725 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,746 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-11-23 07:19:57,747 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,765 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,766 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,773 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 45 [2018-11-23 07:19:57,774 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:57,776 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,778 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:57,784 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 45 [2018-11-23 07:19:57,785 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:57,793 INFO L267 ElimStorePlain]: Start of recursive call 24: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,852 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 57 [2018-11-23 07:19:57,892 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2018-11-23 07:19:57,893 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-11-23 07:19:57,898 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2018-11-23 07:19:57,899 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 2 xjuncts. [2018-11-23 07:19:57,929 INFO L267 ElimStorePlain]: Start of recursive call 29: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:19:57,953 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:19:57,953 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:57,955 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-23 07:19:57,955 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,022 INFO L267 ElimStorePlain]: Start of recursive call 16: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:19:58,040 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 07:19:58,040 INFO L202 ElimStorePlain]: Needed 33 recursive calls to eliminate 5 variables, input treesize:37, output treesize:27 [2018-11-23 07:19:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:58,076 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:19:58,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 18 [2018-11-23 07:19:58,076 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:19:58,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 07:19:58,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 07:19:58,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2018-11-23 07:19:58,077 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand 14 states. [2018-11-23 07:19:58,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:58,372 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2018-11-23 07:19:58,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 07:19:58,372 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 27 [2018-11-23 07:19:58,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:58,374 INFO L225 Difference]: With dead ends: 65 [2018-11-23 07:19:58,374 INFO L226 Difference]: Without dead ends: 63 [2018-11-23 07:19:58,375 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2018-11-23 07:19:58,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-23 07:19:58,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 44. [2018-11-23 07:19:58,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-23 07:19:58,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-11-23 07:19:58,379 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 27 [2018-11-23 07:19:58,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:58,379 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-11-23 07:19:58,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 07:19:58,379 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-11-23 07:19:58,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 07:19:58,380 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:58,380 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:58,380 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:58,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:58,380 INFO L82 PathProgramCache]: Analyzing trace with hash 879869942, now seen corresponding path program 1 times [2018-11-23 07:19:58,380 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:58,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:58,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:58,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:58,382 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:58,518 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:58,518 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:19:58,518 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:19:58,518 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-11-23 07:19:58,518 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [18], [22], [25], [27], [32], [41], [48], [50], [53], [54], [57], [59], [64], [65], [66] [2018-11-23 07:19:58,519 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:19:58,519 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:19:58,557 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:19:58,557 INFO L272 AbstractInterpreter]: Visited 21 different actions 37 times. Merged at 14 different actions 14 times. Never widened. Performed 275 root evaluator evaluations with a maximum evaluation depth of 3. Performed 275 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 34 variables. [2018-11-23 07:19:58,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:58,572 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:19:58,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:19:58,573 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:19:58,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:58,590 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:19:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:58,603 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:19:58,605 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:19:58,605 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,624 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,624 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:19:58,633 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:58,633 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:58,634 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:19:58,634 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,647 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 31 [2018-11-23 07:19:58,649 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:19:58,651 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:58,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:19:58,653 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,656 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,659 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,668 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:19:58,670 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:19:58,670 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,672 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,681 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:19:58,683 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:19:58,683 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,684 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,691 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:62, output treesize:29 [2018-11-23 07:19:58,716 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-23 07:19:58,720 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2018-11-23 07:19:58,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,724 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,730 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:19:58,732 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:19:58,732 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,734 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,738 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,738 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:13 [2018-11-23 07:19:58,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:19:58,752 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:58,752 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-11-23 07:19:58,753 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,755 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,756 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,756 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:3 [2018-11-23 07:19:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:58,759 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:19:58,787 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:19:58,789 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:19:58,792 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:19:58,793 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:29 [2018-11-23 07:19:58,821 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2018-11-23 07:19:58,823 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:19:58,823 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,843 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:58,843 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:58,844 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-11-23 07:19:58,844 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,849 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:19:58,861 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 59 [2018-11-23 07:19:58,865 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2018-11-23 07:19:58,865 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:58,950 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:58,952 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:58,964 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2018-11-23 07:19:59,005 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:59,007 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:59,013 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 45 [2018-11-23 07:19:59,014 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:59,017 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:59,020 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:59,028 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 45 [2018-11-23 07:19:59,029 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:59,049 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 07:19:59,049 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:59,054 INFO L267 ElimStorePlain]: Start of recursive call 7: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:19:59,083 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-11-23 07:19:59,084 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:59,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2018-11-23 07:19:59,180 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2018-11-23 07:19:59,181 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-11-23 07:19:59,183 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 6 [2018-11-23 07:19:59,183 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:59,193 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:19:59,234 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 57 [2018-11-23 07:19:59,266 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:19:59,267 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-11-23 07:19:59,267 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:59,288 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2018-11-23 07:19:59,289 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-23 07:19:59,295 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2018-11-23 07:19:59,295 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-11-23 07:19:59,315 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:19:59,364 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 44 [2018-11-23 07:19:59,382 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:19:59,382 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:59,406 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2018-11-23 07:19:59,406 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-11-23 07:19:59,410 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:59,412 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:59,419 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 51 [2018-11-23 07:19:59,420 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:59,440 INFO L267 ElimStorePlain]: Start of recursive call 19: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:19:59,533 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:19:59,533 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:59,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-23 07:19:59,537 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:59,550 INFO L267 ElimStorePlain]: Start of recursive call 5: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:19:59,555 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 34 [2018-11-23 07:19:59,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-23 07:19:59,557 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:59,576 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 42 [2018-11-23 07:19:59,590 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:59,591 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:59,599 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 49 [2018-11-23 07:19:59,600 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:59,606 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2018-11-23 07:19:59,607 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-23 07:19:59,609 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:59,611 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:19:59,626 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2018-11-23 07:19:59,627 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 3 xjuncts. [2018-11-23 07:19:59,657 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:19:59,658 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:19:59,672 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:19:59,682 INFO L267 ElimStorePlain]: Start of recursive call 25: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:19:59,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 07:19:59,697 INFO L202 ElimStorePlain]: Needed 31 recursive calls to eliminate 5 variables, input treesize:37, output treesize:27 [2018-11-23 07:19:59,718 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:59,733 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:19:59,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 18 [2018-11-23 07:19:59,733 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:19:59,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 07:19:59,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 07:19:59,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-11-23 07:19:59,734 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 14 states. [2018-11-23 07:20:00,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:00,094 INFO L93 Difference]: Finished difference Result 92 states and 104 transitions. [2018-11-23 07:20:00,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 07:20:00,094 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 29 [2018-11-23 07:20:00,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:00,095 INFO L225 Difference]: With dead ends: 92 [2018-11-23 07:20:00,095 INFO L226 Difference]: Without dead ends: 90 [2018-11-23 07:20:00,095 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2018-11-23 07:20:00,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-11-23 07:20:00,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 63. [2018-11-23 07:20:00,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-23 07:20:00,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2018-11-23 07:20:00,100 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 29 [2018-11-23 07:20:00,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:00,100 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2018-11-23 07:20:00,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 07:20:00,100 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2018-11-23 07:20:00,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 07:20:00,101 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:00,101 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:20:00,101 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:00,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:00,102 INFO L82 PathProgramCache]: Analyzing trace with hash 869918838, now seen corresponding path program 1 times [2018-11-23 07:20:00,102 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:00,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:00,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:20:00,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:00,103 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:00,279 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:00,279 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:00,279 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:00,279 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-11-23 07:20:00,280 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [18], [20], [22], [25], [32], [41], [48], [50], [53], [54], [57], [59], [64], [65], [66] [2018-11-23 07:20:00,281 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:20:00,281 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:20:00,309 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:20:00,309 INFO L272 AbstractInterpreter]: Visited 21 different actions 37 times. Merged at 14 different actions 14 times. Never widened. Performed 275 root evaluator evaluations with a maximum evaluation depth of 3. Performed 275 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 34 variables. [2018-11-23 07:20:00,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:00,312 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:20:00,312 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:00,312 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:20:00,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:20:00,320 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:20:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:00,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:00,344 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:20:00,344 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,362 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:20:00,370 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:00,371 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:00,371 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:20:00,372 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:00,387 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:00,387 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,389 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 07:20:00,405 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:00,407 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:00,409 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:00,409 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,412 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,416 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,426 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:00,427 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:00,427 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,429 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,437 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:68, output treesize:35 [2018-11-23 07:20:00,512 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2018-11-23 07:20:00,514 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 07:20:00,514 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,517 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,524 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:20:00,526 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:20:00,526 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,528 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,533 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:00,533 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:60, output treesize:34 [2018-11-23 07:20:00,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 07:20:00,561 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-23 07:20:00,561 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,565 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,565 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-11-23 07:20:00,565 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,567 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,569 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:38, output treesize:5 [2018-11-23 07:20:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:00,572 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:00,655 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:00,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:00,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:00,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:64 [2018-11-23 07:20:00,733 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 96 [2018-11-23 07:20:00,737 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2018-11-23 07:20:00,738 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,811 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 53 [2018-11-23 07:20:00,825 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,827 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,828 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2018-11-23 07:20:00,829 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,831 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,831 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,831 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-23 07:20:00,832 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,833 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2018-11-23 07:20:00,833 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,848 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:00,921 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,922 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,923 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,923 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,924 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,929 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 107 [2018-11-23 07:20:00,976 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,977 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,977 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,977 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,978 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,978 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,978 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2018-11-23 07:20:00,979 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:00,981 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,981 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,982 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,982 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,982 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,983 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:00,983 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 49 [2018-11-23 07:20:00,984 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,012 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,012 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,013 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-23 07:20:01,013 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,014 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,015 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,015 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 07:20:01,016 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,034 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:01,118 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,119 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,120 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,120 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,120 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,126 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 107 [2018-11-23 07:20:01,172 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,173 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,173 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,173 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,174 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,174 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,174 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 49 [2018-11-23 07:20:01,175 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,176 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,177 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,177 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,177 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,178 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,178 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,178 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2018-11-23 07:20:01,179 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,207 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,208 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,208 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-23 07:20:01,209 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,210 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,210 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,211 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 07:20:01,211 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,232 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:01,415 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-11-23 07:20:01,415 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,417 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2018-11-23 07:20:01,417 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,470 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 74 [2018-11-23 07:20:01,470 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,526 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,532 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 82 [2018-11-23 07:20:01,587 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,588 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,588 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,588 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,589 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,589 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,590 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 61 [2018-11-23 07:20:01,590 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,593 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,593 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,594 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 42 [2018-11-23 07:20:01,594 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,596 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,596 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,596 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,597 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,597 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,598 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,598 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2018-11-23 07:20:01,598 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,643 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2018-11-23 07:20:01,643 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,645 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,646 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,646 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2018-11-23 07:20:01,647 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,670 INFO L267 ElimStorePlain]: Start of recursive call 21: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:01,733 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,733 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,734 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,735 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,735 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,741 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 104 [2018-11-23 07:20:01,791 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,791 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,792 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,792 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,792 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,793 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,793 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 46 [2018-11-23 07:20:01,794 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,795 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,795 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,796 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,796 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,796 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,797 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,797 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 46 [2018-11-23 07:20:01,798 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,822 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,822 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,822 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-11-23 07:20:01,823 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,824 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,825 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,825 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-11-23 07:20:01,825 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,840 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:01,874 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-23 07:20:01,875 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,900 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,901 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,901 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 64 [2018-11-23 07:20:01,919 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,919 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,920 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2018-11-23 07:20:01,920 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,921 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,921 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,922 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:20:01,922 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,932 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:01,966 INFO L267 ElimStorePlain]: Start of recursive call 2: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:01,974 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 62 [2018-11-23 07:20:01,977 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,977 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:01,978 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 51 [2018-11-23 07:20:01,978 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:01,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2018-11-23 07:20:01,999 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,018 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-23 07:20:02,018 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,035 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2018-11-23 07:20:02,041 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 9 [2018-11-23 07:20:02,041 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,045 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 07:20:02,079 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,096 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,100 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 47 [2018-11-23 07:20:02,121 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,122 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,122 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-23 07:20:02,122 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,131 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-23 07:20:02,131 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,136 INFO L267 ElimStorePlain]: Start of recursive call 43: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,148 INFO L267 ElimStorePlain]: Start of recursive call 36: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:02,153 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2018-11-23 07:20:02,155 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2018-11-23 07:20:02,170 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,170 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,171 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-23 07:20:02,171 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,173 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,173 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,174 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2018-11-23 07:20:02,174 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,176 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2018-11-23 07:20:02,176 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,191 INFO L267 ElimStorePlain]: Start of recursive call 47: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:02,211 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,217 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 64 [2018-11-23 07:20:02,270 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,270 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,270 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,271 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,271 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,271 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,272 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 50 [2018-11-23 07:20:02,272 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,274 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,274 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,274 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2018-11-23 07:20:02,275 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,276 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,277 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,277 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,279 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,280 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,280 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,281 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 50 [2018-11-23 07:20:02,281 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,321 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2018-11-23 07:20:02,321 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,323 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,324 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:02,325 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-23 07:20:02,325 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,350 INFO L267 ElimStorePlain]: Start of recursive call 51: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:02,376 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-23 07:20:02,377 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:02,392 INFO L267 ElimStorePlain]: Start of recursive call 46: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:02,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 5 xjuncts. [2018-11-23 07:20:02,422 INFO L202 ElimStorePlain]: Needed 57 recursive calls to eliminate 5 variables, input treesize:70, output treesize:61 [2018-11-23 07:20:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:02,501 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:20:02,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 26 [2018-11-23 07:20:02,502 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:20:02,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 07:20:02,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 07:20:02,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2018-11-23 07:20:02,503 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand 18 states. [2018-11-23 07:20:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:03,021 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2018-11-23 07:20:03,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 07:20:03,021 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 29 [2018-11-23 07:20:03,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:03,022 INFO L225 Difference]: With dead ends: 113 [2018-11-23 07:20:03,022 INFO L226 Difference]: Without dead ends: 111 [2018-11-23 07:20:03,022 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=971, Unknown=0, NotChecked=0, Total=1190 [2018-11-23 07:20:03,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-11-23 07:20:03,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 65. [2018-11-23 07:20:03,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-23 07:20:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 78 transitions. [2018-11-23 07:20:03,029 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 78 transitions. Word has length 29 [2018-11-23 07:20:03,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:03,029 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 78 transitions. [2018-11-23 07:20:03,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 07:20:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 78 transitions. [2018-11-23 07:20:03,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 07:20:03,030 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:03,030 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:20:03,030 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:03,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:03,031 INFO L82 PathProgramCache]: Analyzing trace with hash 202043450, now seen corresponding path program 2 times [2018-11-23 07:20:03,031 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:03,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:03,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:20:03,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:03,032 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:03,082 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 07:20:03,082 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:03,082 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:03,082 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:20:03,083 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:20:03,083 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:03,083 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:20:03,090 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:20:03,090 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 07:20:03,104 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 07:20:03,104 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:20:03,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:03,107 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 07:20:03,108 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-23 07:20:03,108 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,109 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,110 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-11-23 07:20:03,119 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-23 07:20:03,120 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:20:03,121 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,121 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,122 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-23 07:20:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 07:20:03,123 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:03,147 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:20:03,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:20:03,149 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,150 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,151 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,151 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:5 [2018-11-23 07:20:03,182 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 07:20:03,206 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:20:03,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 16 [2018-11-23 07:20:03,206 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:20:03,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 07:20:03,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 07:20:03,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-11-23 07:20:03,207 INFO L87 Difference]: Start difference. First operand 65 states and 78 transitions. Second operand 10 states. [2018-11-23 07:20:03,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:03,330 INFO L93 Difference]: Finished difference Result 145 states and 170 transitions. [2018-11-23 07:20:03,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 07:20:03,330 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2018-11-23 07:20:03,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:03,332 INFO L225 Difference]: With dead ends: 145 [2018-11-23 07:20:03,332 INFO L226 Difference]: Without dead ends: 100 [2018-11-23 07:20:03,332 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-11-23 07:20:03,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-11-23 07:20:03,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 60. [2018-11-23 07:20:03,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-23 07:20:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2018-11-23 07:20:03,339 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 29 [2018-11-23 07:20:03,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:03,340 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2018-11-23 07:20:03,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 07:20:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2018-11-23 07:20:03,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 07:20:03,340 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:03,340 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:20:03,341 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:03,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:03,341 INFO L82 PathProgramCache]: Analyzing trace with hash -809073800, now seen corresponding path program 1 times [2018-11-23 07:20:03,341 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:03,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:03,342 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:20:03,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:03,342 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:03,478 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:03,478 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:03,478 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-11-23 07:20:03,479 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [18], [22], [27], [32], [41], [48], [50], [53], [54], [57], [59], [64], [65], [66] [2018-11-23 07:20:03,480 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:20:03,480 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:20:03,509 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:20:03,509 INFO L272 AbstractInterpreter]: Visited 20 different actions 33 times. Merged at 12 different actions 12 times. Never widened. Performed 255 root evaluator evaluations with a maximum evaluation depth of 3. Performed 255 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 33 variables. [2018-11-23 07:20:03,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:03,520 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:20:03,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:03,520 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:20:03,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:20:03,528 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:20:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:03,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:03,544 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:20:03,544 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,547 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:20:03,555 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:03,556 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:03,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:20:03,557 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,570 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 31 [2018-11-23 07:20:03,571 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:03,573 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:03,574 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:03,574 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,577 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,581 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,589 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:03,591 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:03,591 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,592 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,599 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:03,601 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:03,601 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,602 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,607 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,608 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:62, output treesize:29 [2018-11-23 07:20:03,631 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-23 07:20:03,632 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2018-11-23 07:20:03,633 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,640 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:20:03,641 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:20:03,641 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,642 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,645 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,645 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:13 [2018-11-23 07:20:03,656 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:20:03,657 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:03,657 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-11-23 07:20:03,658 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,660 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:3 [2018-11-23 07:20:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:03,662 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:03,690 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:03,692 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:03,696 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:03,696 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:29 [2018-11-23 07:20:03,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2018-11-23 07:20:03,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:03,760 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,772 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:03,772 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:03,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-11-23 07:20:03,773 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,778 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:03,782 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 34 [2018-11-23 07:20:03,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-23 07:20:03,785 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,811 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 42 [2018-11-23 07:20:03,827 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:03,829 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:03,835 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2018-11-23 07:20:03,836 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:03,842 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2018-11-23 07:20:03,842 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:03,845 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:03,847 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:03,854 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 49 [2018-11-23 07:20:03,855 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:03,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:20:03,877 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:03,888 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:03,897 INFO L267 ElimStorePlain]: Start of recursive call 5: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:03,909 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 59 [2018-11-23 07:20:03,914 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:03,916 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:03,931 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 73 [2018-11-23 07:20:03,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:20:03,985 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:04,018 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:04,018 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,019 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,020 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2018-11-23 07:20:04,020 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:04,044 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,045 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,052 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 48 [2018-11-23 07:20:04,053 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:04,056 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,057 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,069 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 48 [2018-11-23 07:20:04,070 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:04,082 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:04,145 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,147 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,159 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2018-11-23 07:20:04,205 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,207 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,214 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 45 [2018-11-23 07:20:04,215 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:04,217 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,219 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,226 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 45 [2018-11-23 07:20:04,227 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:04,247 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 07:20:04,247 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:04,252 INFO L267 ElimStorePlain]: Start of recursive call 18: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:04,294 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 53 [2018-11-23 07:20:04,325 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2018-11-23 07:20:04,325 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:04,328 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,330 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,338 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 60 [2018-11-23 07:20:04,339 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:04,351 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,357 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:04,370 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 60 [2018-11-23 07:20:04,372 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:04,411 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:20:04,411 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:04,430 INFO L267 ElimStorePlain]: Start of recursive call 22: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:04,464 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 57 [2018-11-23 07:20:04,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2018-11-23 07:20:04,506 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:04,511 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2018-11-23 07:20:04,512 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:04,551 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:04,737 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:20:04,737 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:04,739 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-23 07:20:04,739 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:04,771 INFO L267 ElimStorePlain]: Start of recursive call 12: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:04,789 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 07:20:04,789 INFO L202 ElimStorePlain]: Needed 31 recursive calls to eliminate 5 variables, input treesize:37, output treesize:27 [2018-11-23 07:20:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:04,831 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:20:04,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 20 [2018-11-23 07:20:04,831 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:20:04,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 07:20:04,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 07:20:04,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2018-11-23 07:20:04,832 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand 15 states. [2018-11-23 07:20:05,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:05,431 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2018-11-23 07:20:05,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-23 07:20:05,431 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 29 [2018-11-23 07:20:05,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:05,432 INFO L225 Difference]: With dead ends: 92 [2018-11-23 07:20:05,432 INFO L226 Difference]: Without dead ends: 90 [2018-11-23 07:20:05,432 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 50 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=259, Invalid=931, Unknown=0, NotChecked=0, Total=1190 [2018-11-23 07:20:05,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-11-23 07:20:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 56. [2018-11-23 07:20:05,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-23 07:20:05,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2018-11-23 07:20:05,438 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 29 [2018-11-23 07:20:05,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:05,438 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2018-11-23 07:20:05,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 07:20:05,438 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2018-11-23 07:20:05,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 07:20:05,439 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:05,439 INFO L402 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] [2018-11-23 07:20:05,439 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:05,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:05,440 INFO L82 PathProgramCache]: Analyzing trace with hash -819024904, now seen corresponding path program 1 times [2018-11-23 07:20:05,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:05,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:05,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:20:05,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:05,440 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:05,613 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:05,613 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:05,613 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-11-23 07:20:05,613 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [18], [20], [22], [25], [27], [32], [41], [48], [50], [53], [54], [57], [59], [64], [65], [66] [2018-11-23 07:20:05,614 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:20:05,614 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:20:05,638 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:20:05,638 INFO L272 AbstractInterpreter]: Visited 22 different actions 39 times. Merged at 14 different actions 14 times. Never widened. Performed 281 root evaluator evaluations with a maximum evaluation depth of 3. Performed 281 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 4 different actions. Largest state had 34 variables. [2018-11-23 07:20:05,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:05,644 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:20:05,644 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:05,644 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:20:05,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:20:05,666 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:20:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:05,682 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:05,685 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:20:05,685 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,694 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,694 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:20:05,711 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:05,715 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:05,716 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:20:05,716 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,736 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-11-23 07:20:05,738 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:05,740 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:05,741 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:05,742 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,745 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,749 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,760 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:05,762 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:05,762 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,764 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:05,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:05,776 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,777 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,785 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,785 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:75, output treesize:42 [2018-11-23 07:20:05,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-11-23 07:20:05,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2018-11-23 07:20:05,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,872 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:20:05,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:20:05,879 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,880 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:05,884 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:56, output treesize:30 [2018-11-23 07:20:05,907 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2018-11-23 07:20:05,908 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:20:05,908 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,912 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 07:20:05,912 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,913 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,915 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:05,916 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:34, output treesize:3 [2018-11-23 07:20:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:05,932 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:06,042 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:06,049 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:06,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:06,056 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:54, output treesize:62 [2018-11-23 07:20:06,114 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2018-11-23 07:20:06,121 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 59 [2018-11-23 07:20:06,150 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,151 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,152 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,153 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,156 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 50 [2018-11-23 07:20:06,157 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,158 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,159 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,160 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,161 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 50 [2018-11-23 07:20:06,166 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,171 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 31 [2018-11-23 07:20:06,171 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,202 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-11-23 07:20:06,220 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2018-11-23 07:20:06,245 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-23 07:20:06,246 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,247 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,247 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,248 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:20:06,248 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,249 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,250 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,250 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2018-11-23 07:20:06,250 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,259 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,273 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:06,285 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 94 [2018-11-23 07:20:06,289 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 75 [2018-11-23 07:20:06,289 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,358 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 77 [2018-11-23 07:20:06,386 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,386 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,386 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2018-11-23 07:20:06,387 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2018-11-23 07:20:06,388 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,390 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,390 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,391 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 40 [2018-11-23 07:20:06,391 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,432 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,432 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,433 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,434 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,437 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 61 [2018-11-23 07:20:06,438 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 42 [2018-11-23 07:20:06,444 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,465 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,539 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2018-11-23 07:20:06,540 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,541 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-23 07:20:06,541 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,613 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56 [2018-11-23 07:20:06,614 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,678 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,679 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,680 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,680 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,686 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 102 [2018-11-23 07:20:06,732 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,733 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,733 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 07:20:06,734 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,735 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,736 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,736 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-23 07:20:06,736 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:06,764 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,764 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,765 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,766 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,769 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 49 [2018-11-23 07:20:06,770 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,772 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,772 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,773 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,773 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,777 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 49 [2018-11-23 07:20:06,778 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,793 INFO L267 ElimStorePlain]: Start of recursive call 23: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,852 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,853 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,854 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,855 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,864 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 102 [2018-11-23 07:20:06,919 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,919 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,920 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,920 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,924 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 49 [2018-11-23 07:20:06,924 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,927 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,927 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,928 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,929 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:06,932 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 49 [2018-11-23 07:20:06,932 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:06,959 INFO L267 ElimStorePlain]: Start of recursive call 28: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:07,005 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,005 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,006 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 78 [2018-11-23 07:20:07,026 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,026 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,027 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-23 07:20:07,027 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,029 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,029 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,029 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 28 [2018-11-23 07:20:07,029 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,040 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:07,085 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,085 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,086 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,086 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,092 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 99 [2018-11-23 07:20:07,132 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,133 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,134 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,134 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,137 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 46 [2018-11-23 07:20:07,138 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:07,139 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,139 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,140 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,141 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 46 [2018-11-23 07:20:07,145 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:07,167 INFO L267 ElimStorePlain]: Start of recursive call 34: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:07,231 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2018-11-23 07:20:07,241 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-23 07:20:07,242 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,243 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,243 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,244 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:20:07,244 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,245 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,246 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,246 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2018-11-23 07:20:07,246 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,257 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:07,345 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 07:20:07,345 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,346 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 07:20:07,347 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,368 INFO L267 ElimStorePlain]: Start of recursive call 12: 13 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 07:20:07,377 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 60 [2018-11-23 07:20:07,380 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2018-11-23 07:20:07,380 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,410 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-23 07:20:07,410 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,433 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2018-11-23 07:20:07,440 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2018-11-23 07:20:07,440 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,445 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,490 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 58 [2018-11-23 07:20:07,509 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 31 [2018-11-23 07:20:07,509 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:07,519 INFO L267 ElimStorePlain]: Start of recursive call 48: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,535 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:20:07,536 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,549 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,551 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,551 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,561 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 81 [2018-11-23 07:20:07,614 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,615 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,616 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,616 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:07,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 44 [2018-11-23 07:20:07,621 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:07,641 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 07:20:07,642 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:07,650 INFO L267 ElimStorePlain]: Start of recursive call 51: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:07,663 INFO L267 ElimStorePlain]: Start of recursive call 43: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:07,692 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 5 xjuncts. [2018-11-23 07:20:07,692 INFO L202 ElimStorePlain]: Needed 53 recursive calls to eliminate 5 variables, input treesize:68, output treesize:57 [2018-11-23 07:20:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:07,778 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:20:07,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 28 [2018-11-23 07:20:07,778 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:20:07,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-23 07:20:07,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-23 07:20:07,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2018-11-23 07:20:07,779 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand 21 states. [2018-11-23 07:20:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:09,089 INFO L93 Difference]: Finished difference Result 135 states and 151 transitions. [2018-11-23 07:20:09,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-23 07:20:09,089 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 29 [2018-11-23 07:20:09,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:09,090 INFO L225 Difference]: With dead ends: 135 [2018-11-23 07:20:09,090 INFO L226 Difference]: Without dead ends: 133 [2018-11-23 07:20:09,091 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=2411, Unknown=0, NotChecked=0, Total=2862 [2018-11-23 07:20:09,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-11-23 07:20:09,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 39. [2018-11-23 07:20:09,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-23 07:20:09,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-11-23 07:20:09,095 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 29 [2018-11-23 07:20:09,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:09,095 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-11-23 07:20:09,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-23 07:20:09,095 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-23 07:20:09,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 07:20:09,096 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:09,096 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:20:09,096 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:09,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:09,096 INFO L82 PathProgramCache]: Analyzing trace with hash 23918483, now seen corresponding path program 2 times [2018-11-23 07:20:09,096 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:09,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:09,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:20:09,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:09,097 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:09,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:09,195 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:09,195 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:20:09,195 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:20:09,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:09,195 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:20:09,205 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:20:09,205 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 07:20:09,221 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 07:20:09,221 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:20:09,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:09,227 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:20:09,227 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:09,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:09,235 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,236 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,241 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:09,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:09,243 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,244 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,247 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,248 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:29, output treesize:20 [2018-11-23 07:20:09,256 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:09,258 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:09,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-11-23 07:20:09,258 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 07:20:09,281 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:20:09,281 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,286 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,302 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 07:20:09,303 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:09,304 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,309 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,323 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 07:20:09,325 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:20:09,326 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,328 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,337 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2018-11-23 07:20:09,340 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:09,340 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,345 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,351 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,352 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:85, output treesize:39 [2018-11-23 07:20:09,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 56 [2018-11-23 07:20:09,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2018-11-23 07:20:09,403 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,409 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-11-23 07:20:09,410 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:09,415 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:09,424 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:20:09,426 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 07:20:09,426 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,429 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,432 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,432 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:69, output treesize:7 [2018-11-23 07:20:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:09,441 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:09,518 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,531 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,532 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,536 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,537 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,542 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,542 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,547 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,618 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,622 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,622 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:09,626 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:09,627 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:09,630 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:09,679 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,700 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,701 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:09,707 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:09,708 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:09,713 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:09,752 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,756 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,756 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,760 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,760 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,764 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:09,794 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 6 xjuncts. [2018-11-23 07:20:09,794 INFO L202 ElimStorePlain]: Needed 27 recursive calls to eliminate 8 variables, input treesize:125, output treesize:129 [2018-11-23 07:20:18,478 WARN L180 SmtUtils]: Spent 8.66 s on a formula simplification. DAG size of input: 79 DAG size of output: 43 [2018-11-23 07:20:18,510 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-11-23 07:20:18,510 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:18,520 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2018-11-23 07:20:18,521 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:18,531 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 33 [2018-11-23 07:20:18,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:18,542 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:18,547 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:20:18,548 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 07:20:18,548 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:18,551 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:18,554 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:18,562 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2018-11-23 07:20:18,573 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:18,573 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:18,576 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:20:18,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 07:20:18,578 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:18,578 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:18,580 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:18,585 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:18,586 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 14 variables, input treesize:93, output treesize:7 [2018-11-23 07:20:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:18,607 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:20:18,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 14 [2018-11-23 07:20:18,607 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:20:18,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 07:20:18,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 07:20:18,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=147, Unknown=3, NotChecked=0, Total=182 [2018-11-23 07:20:18,608 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 13 states. [2018-11-23 07:20:18,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:18,788 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2018-11-23 07:20:18,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:20:18,789 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32 [2018-11-23 07:20:18,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:18,789 INFO L225 Difference]: With dead ends: 67 [2018-11-23 07:20:18,789 INFO L226 Difference]: Without dead ends: 46 [2018-11-23 07:20:18,790 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=60, Invalid=243, Unknown=3, NotChecked=0, Total=306 [2018-11-23 07:20:18,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-23 07:20:18,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-23 07:20:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-23 07:20:18,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2018-11-23 07:20:18,796 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 32 [2018-11-23 07:20:18,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:18,796 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2018-11-23 07:20:18,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 07:20:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2018-11-23 07:20:18,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 07:20:18,797 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:18,797 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:20:18,797 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:18,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:18,798 INFO L82 PathProgramCache]: Analyzing trace with hash 832030073, now seen corresponding path program 3 times [2018-11-23 07:20:18,798 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:18,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:18,799 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:20:18,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:18,799 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:19,064 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:19,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:19,065 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:19,065 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:20:19,065 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:20:19,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:19,065 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:20:19,072 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 07:20:19,073 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-11-23 07:20:19,090 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 07:20:19,090 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:20:19,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:19,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:20:19,097 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,102 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,102 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:20:19,133 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,134 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,134 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:20:19,135 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,162 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:19,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:19,165 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,167 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,192 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 31 [2018-11-23 07:20:19,194 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:19,197 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,198 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:19,199 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,203 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,207 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,224 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:19,227 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:19,227 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,232 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,248 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:86, output treesize:61 [2018-11-23 07:20:19,344 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,346 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,347 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,348 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,349 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:20:19,349 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,393 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2018-11-23 07:20:19,395 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:20:19,395 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,404 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,437 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 07:20:19,439 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:20:19,440 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,444 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,468 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 07:20:19,470 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:19,471 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,477 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,496 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,500 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,502 INFO L478 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 47 treesize of output 76 [2018-11-23 07:20:19,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:19,507 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,508 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:19,508 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,511 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,519 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,536 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2018-11-23 07:20:19,539 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-23 07:20:19,539 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,544 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,557 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 8 variables, input treesize:151, output treesize:87 [2018-11-23 07:20:19,721 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,721 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,722 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 81 [2018-11-23 07:20:19,727 INFO L478 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2018-11-23 07:20:19,728 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:19,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 70 [2018-11-23 07:20:19,755 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:19,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2018-11-23 07:20:19,757 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,773 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:19,788 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,789 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2018-11-23 07:20:19,790 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-23 07:20:19,790 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,796 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:20:19,796 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,800 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,802 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,803 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2018-11-23 07:20:19,804 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-23 07:20:19,804 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:20:19,810 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,814 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,824 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:19,824 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:100, output treesize:79 [2018-11-23 07:20:19,863 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,865 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,866 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,867 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:19,867 INFO L478 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 43 treesize of output 55 [2018-11-23 07:20:19,879 INFO L478 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 47 [2018-11-23 07:20:19,885 INFO L267 ElimStorePlain]: Start of recursive call 3: 36 dim-0 vars, End of recursive call: 36 dim-0 vars, and 21 xjuncts. [2018-11-23 07:20:19,918 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:19,918 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-11-23 07:20:19,919 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,925 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:20:19,925 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,929 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,934 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:19,934 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:5 [2018-11-23 07:20:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:19,955 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:20,095 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,098 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,114 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,120 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,130 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,133 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,142 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 10 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:20,142 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:106, output treesize:163 [2018-11-23 07:20:20,333 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,342 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,343 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,352 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,353 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,361 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:20,399 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 154 [2018-11-23 07:20:20,409 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:20,409 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,419 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2018-11-23 07:20:20,421 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2018-11-23 07:20:20,421 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,424 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,430 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,434 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 205 [2018-11-23 07:20:20,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:20,446 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,457 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 131 [2018-11-23 07:20:20,459 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 121 [2018-11-23 07:20:20,460 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,465 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,473 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,477 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 175 [2018-11-23 07:20:20,490 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:20,490 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,502 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 80 [2018-11-23 07:20:20,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 71 [2018-11-23 07:20:20,505 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,507 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,517 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,554 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 126 [2018-11-23 07:20:20,562 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:20,562 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,570 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:20:20,572 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:20:20,572 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,574 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,580 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 131 [2018-11-23 07:20:20,592 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:20,592 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,601 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2018-11-23 07:20:20,603 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2018-11-23 07:20:20,603 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,607 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,613 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,616 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 165 [2018-11-23 07:20:20,625 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:20,626 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-11-23 07:20:20,637 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 43 [2018-11-23 07:20:20,638 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,640 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,646 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:20,671 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 17 dim-0 vars, and 3 xjuncts. [2018-11-23 07:20:20,671 INFO L202 ElimStorePlain]: Needed 31 recursive calls to eliminate 10 variables, input treesize:154, output treesize:389 [2018-11-23 07:20:24,781 WARN L180 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 108 DAG size of output: 73 [2018-11-23 07:20:24,855 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 103 [2018-11-23 07:20:24,857 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 90 [2018-11-23 07:20:24,890 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:24,890 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:24,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2018-11-23 07:20:24,891 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:24,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 29 [2018-11-23 07:20:24,893 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:24,907 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:24,968 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:24,973 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 98 [2018-11-23 07:20:25,018 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 55 [2018-11-23 07:20:25,018 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,041 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,041 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,041 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 72 [2018-11-23 07:20:25,042 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,055 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,098 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 84 [2018-11-23 07:20:25,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 29 [2018-11-23 07:20:25,109 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,117 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2018-11-23 07:20:25,158 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,196 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 79 [2018-11-23 07:20:25,268 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,269 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,269 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2018-11-23 07:20:25,270 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,271 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,272 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,272 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2018-11-23 07:20:25,272 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,274 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 43 [2018-11-23 07:20:25,274 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,332 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,333 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,333 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,333 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,334 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,334 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,334 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 69 [2018-11-23 07:20:25,335 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,341 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,342 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,344 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 52 [2018-11-23 07:20:25,344 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,373 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:25,419 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 52 [2018-11-23 07:20:25,429 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:20:25,429 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,436 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,481 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2018-11-23 07:20:25,494 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,494 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,495 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:20:25,495 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,496 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-11-23 07:20:25,497 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,507 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:25,562 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:25,566 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,580 INFO L478 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 113 treesize of output 132 [2018-11-23 07:20:25,587 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 106 [2018-11-23 07:20:25,616 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2018-11-23 07:20:25,617 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,629 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:25,947 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,948 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,949 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,950 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,950 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:25,956 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 140 [2018-11-23 07:20:26,026 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,026 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,027 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,027 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,027 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,028 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,028 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 97 [2018-11-23 07:20:26,029 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:26,056 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,057 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,057 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 70 [2018-11-23 07:20:26,057 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:26,082 INFO L267 ElimStorePlain]: Start of recursive call 26: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:26,387 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 103 [2018-11-23 07:20:26,407 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 29 [2018-11-23 07:20:26,408 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:26,410 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,410 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,410 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2018-11-23 07:20:26,411 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:26,428 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:26,747 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 60 [2018-11-23 07:20:26,763 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,763 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:26,764 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:20:26,764 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:26,765 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-11-23 07:20:26,765 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:26,779 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:27,101 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:27,107 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 91 [2018-11-23 07:20:27,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2018-11-23 07:20:27,185 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:27,217 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:27,218 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:27,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 63 [2018-11-23 07:20:27,219 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:27,238 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:27,241 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:27,246 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 96 [2018-11-23 07:20:27,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 54 [2018-11-23 07:20:27,314 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:27,346 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:27,346 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:27,347 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 63 [2018-11-23 07:20:27,347 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:27,366 INFO L267 ElimStorePlain]: Start of recursive call 38: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:27,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2018-11-23 07:20:27,691 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:27,692 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2018-11-23 07:20:27,692 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:28,475 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,475 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,475 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 112 [2018-11-23 07:20:28,507 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,507 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,507 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2018-11-23 07:20:28,508 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:28,519 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:28,796 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,796 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,797 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,798 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,798 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,804 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 137 [2018-11-23 07:20:28,873 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,873 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,874 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,874 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,874 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,875 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,875 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 92 [2018-11-23 07:20:28,875 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:28,877 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,878 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,878 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,878 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,879 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,879 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,879 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 84 [2018-11-23 07:20:28,880 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:28,928 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,929 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,929 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2018-11-23 07:20:28,929 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:28,931 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,931 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:28,932 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 73 [2018-11-23 07:20:28,932 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:28,966 INFO L267 ElimStorePlain]: Start of recursive call 45: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:29,204 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,209 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 74 [2018-11-23 07:20:29,261 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,262 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 51 [2018-11-23 07:20:29,262 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 38 [2018-11-23 07:20:29,286 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,300 INFO L267 ElimStorePlain]: Start of recursive call 50: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,302 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,307 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 79 [2018-11-23 07:20:29,360 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2018-11-23 07:20:29,360 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,385 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,386 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,386 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 51 [2018-11-23 07:20:29,386 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,401 INFO L267 ElimStorePlain]: Start of recursive call 53: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,522 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 60 [2018-11-23 07:20:29,532 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2018-11-23 07:20:29,532 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,540 INFO L267 ElimStorePlain]: Start of recursive call 56: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 55 [2018-11-23 07:20:29,552 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:20:29,552 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,560 INFO L267 ElimStorePlain]: Start of recursive call 58: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,664 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,670 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 87 [2018-11-23 07:20:29,739 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,739 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,740 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,740 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,740 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,741 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,741 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 77 [2018-11-23 07:20:29,742 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,744 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,745 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,745 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-23 07:20:29,746 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,748 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,748 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,749 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,749 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,750 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,750 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,751 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 77 [2018-11-23 07:20:29,751 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2018-11-23 07:20:29,811 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,812 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,813 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:29,813 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2018-11-23 07:20:29,813 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:29,849 INFO L267 ElimStorePlain]: Start of recursive call 60: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:29,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 96 [2018-11-23 07:20:29,942 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:30,116 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,117 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,117 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,126 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 115 [2018-11-23 07:20:30,204 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,204 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,204 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 72 [2018-11-23 07:20:30,205 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:30,206 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,207 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,207 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 69 [2018-11-23 07:20:30,207 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:30,210 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,211 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,211 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 72 [2018-11-23 07:20:30,211 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:30,277 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,277 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,277 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 51 [2018-11-23 07:20:30,278 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:30,279 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,280 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,282 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,283 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,284 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,284 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,284 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 68 [2018-11-23 07:20:30,285 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:30,333 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,333 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:30,334 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2018-11-23 07:20:30,334 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:30,335 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2018-11-23 07:20:30,336 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:30,378 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 41 [2018-11-23 07:20:30,379 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:30,380 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 38 [2018-11-23 07:20:30,380 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:30,410 INFO L267 ElimStorePlain]: Start of recursive call 67: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:31,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 94 [2018-11-23 07:20:31,154 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2018-11-23 07:20:31,154 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,165 INFO L267 ElimStorePlain]: Start of recursive call 77: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,233 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,234 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,236 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,236 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,236 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,237 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,237 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,237 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,247 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 97 treesize of output 159 [2018-11-23 07:20:31,340 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 60 [2018-11-23 07:20:31,340 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,342 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,342 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,343 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 69 [2018-11-23 07:20:31,343 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,345 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,345 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,345 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 67 [2018-11-23 07:20:31,346 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,411 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,412 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,412 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2018-11-23 07:20:31,413 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,415 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,415 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2018-11-23 07:20:31,416 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,468 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,469 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,469 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 77 [2018-11-23 07:20:31,469 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,471 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,472 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,472 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,473 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,473 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,473 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,474 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 98 [2018-11-23 07:20:31,474 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,524 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,527 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,528 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,528 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,529 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,529 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,529 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 65 [2018-11-23 07:20:31,530 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,531 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,534 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,534 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,535 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,535 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,536 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,536 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 65 [2018-11-23 07:20:31,537 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,578 INFO L267 ElimStorePlain]: Start of recursive call 79: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:31,787 INFO L267 ElimStorePlain]: Start of recursive call 23: 34 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:31,790 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:31,802 INFO L478 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 104 [2018-11-23 07:20:31,805 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 86 [2018-11-23 07:20:31,828 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2018-11-23 07:20:31,828 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,838 INFO L267 ElimStorePlain]: Start of recursive call 90: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,934 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 80 [2018-11-23 07:20:31,946 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2018-11-23 07:20:31,946 INFO L267 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:31,955 INFO L267 ElimStorePlain]: Start of recursive call 92: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,045 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,045 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,046 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,054 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 80 treesize of output 115 [2018-11-23 07:20:32,117 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 53 [2018-11-23 07:20:32,117 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 43 [2018-11-23 07:20:32,145 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,171 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,171 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 70 [2018-11-23 07:20:32,172 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,198 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,198 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,198 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 52 [2018-11-23 07:20:32,199 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,213 INFO L267 ElimStorePlain]: Start of recursive call 94: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,299 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-11-23 07:20:32,299 INFO L267 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,351 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,354 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,354 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,354 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,355 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,355 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,355 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,373 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 77 treesize of output 154 [2018-11-23 07:20:32,485 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2018-11-23 07:20:32,487 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,487 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,488 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 62 [2018-11-23 07:20:32,488 INFO L267 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,527 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,528 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,528 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 60 [2018-11-23 07:20:32,528 INFO L267 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,565 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,565 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,566 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2018-11-23 07:20:32,566 INFO L267 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,599 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,600 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,600 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,600 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,601 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,601 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,602 INFO L478 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 89 treesize of output 97 [2018-11-23 07:20:32,602 INFO L267 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,637 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,638 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,638 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2018-11-23 07:20:32,638 INFO L267 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,665 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,666 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,666 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,667 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,667 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,667 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,668 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 63 [2018-11-23 07:20:32,668 INFO L267 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,683 INFO L267 ElimStorePlain]: Start of recursive call 100: 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:32,919 INFO L267 ElimStorePlain]: Start of recursive call 89: 20 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:32,978 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:32,987 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 96 [2018-11-23 07:20:32,989 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 83 [2018-11-23 07:20:33,022 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,023 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,023 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2018-11-23 07:20:33,023 INFO L267 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,025 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,026 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,026 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2018-11-23 07:20:33,027 INFO L267 ElimStorePlain]: Start of recursive call 110: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,032 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-11-23 07:20:33,032 INFO L267 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,050 INFO L267 ElimStorePlain]: Start of recursive call 108: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:33,099 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 77 [2018-11-23 07:20:33,113 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-11-23 07:20:33,114 INFO L267 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,124 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,124 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2018-11-23 07:20:33,125 INFO L267 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,127 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,127 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2018-11-23 07:20:33,128 INFO L267 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,143 INFO L267 ElimStorePlain]: Start of recursive call 112: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:33,198 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,204 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 73 [2018-11-23 07:20:33,245 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2018-11-23 07:20:33,246 INFO L267 ElimStorePlain]: Start of recursive call 117: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,265 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,266 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,266 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2018-11-23 07:20:33,266 INFO L267 ElimStorePlain]: Start of recursive call 118: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,278 INFO L267 ElimStorePlain]: Start of recursive call 116: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,280 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,285 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 73 [2018-11-23 07:20:33,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2018-11-23 07:20:33,327 INFO L267 ElimStorePlain]: Start of recursive call 120: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,347 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,347 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,347 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2018-11-23 07:20:33,348 INFO L267 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,359 INFO L267 ElimStorePlain]: Start of recursive call 119: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,397 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 88 [2018-11-23 07:20:33,464 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,465 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,465 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 61 [2018-11-23 07:20:33,465 INFO L267 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,467 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,468 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,468 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,468 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,469 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,469 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,470 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 78 [2018-11-23 07:20:33,470 INFO L267 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,472 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,472 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,472 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,473 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,473 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,474 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,474 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 78 [2018-11-23 07:20:33,475 INFO L267 ElimStorePlain]: Start of recursive call 125: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2018-11-23 07:20:33,516 INFO L267 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,517 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,518 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:33,518 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 51 [2018-11-23 07:20:33,518 INFO L267 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,537 INFO L267 ElimStorePlain]: Start of recursive call 122: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:33,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 43 [2018-11-23 07:20:33,590 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:20:33,590 INFO L267 ElimStorePlain]: Start of recursive call 129: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,595 INFO L267 ElimStorePlain]: Start of recursive call 128: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,596 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 49 [2018-11-23 07:20:33,604 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:20:33,604 INFO L267 ElimStorePlain]: Start of recursive call 131: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,610 INFO L267 ElimStorePlain]: Start of recursive call 130: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:33,666 INFO L267 ElimStorePlain]: Start of recursive call 107: 8 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:33,725 INFO L267 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 2 dim-2 vars, End of recursive call: 11 dim-0 vars, and 8 xjuncts. [2018-11-23 07:20:33,725 INFO L202 ElimStorePlain]: Needed 131 recursive calls to eliminate 13 variables, input treesize:242, output treesize:216 [2018-11-23 07:20:34,501 WARN L180 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 75 [2018-11-23 07:20:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:34,529 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:20:34,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 33 [2018-11-23 07:20:34,529 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:20:34,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-23 07:20:34,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-23 07:20:34,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=943, Unknown=0, NotChecked=0, Total=1056 [2018-11-23 07:20:34,530 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 24 states. [2018-11-23 07:20:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:35,438 INFO L93 Difference]: Finished difference Result 103 states and 113 transitions. [2018-11-23 07:20:35,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 07:20:35,439 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 37 [2018-11-23 07:20:35,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:35,439 INFO L225 Difference]: With dead ends: 103 [2018-11-23 07:20:35,439 INFO L226 Difference]: Without dead ends: 101 [2018-11-23 07:20:35,440 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=311, Invalid=1495, Unknown=0, NotChecked=0, Total=1806 [2018-11-23 07:20:35,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-23 07:20:35,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 68. [2018-11-23 07:20:35,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-23 07:20:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2018-11-23 07:20:35,449 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 37 [2018-11-23 07:20:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:35,450 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2018-11-23 07:20:35,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-23 07:20:35,450 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2018-11-23 07:20:35,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 07:20:35,450 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:35,450 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:20:35,451 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:35,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:35,451 INFO L82 PathProgramCache]: Analyzing trace with hash 731434233, now seen corresponding path program 1 times [2018-11-23 07:20:35,451 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:35,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:35,452 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:20:35,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:35,452 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:35,791 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:35,791 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:35,791 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:35,791 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-11-23 07:20:35,791 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [18], [20], [22], [25], [27], [32], [41], [44], [45], [48], [50], [57], [59], [64], [65], [66] [2018-11-23 07:20:35,792 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:20:35,792 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:20:35,821 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:20:35,821 INFO L272 AbstractInterpreter]: Visited 22 different actions 39 times. Merged at 14 different actions 14 times. Never widened. Performed 281 root evaluator evaluations with a maximum evaluation depth of 3. Performed 281 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 4 different actions. Largest state had 34 variables. [2018-11-23 07:20:35,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:35,825 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:20:35,825 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:35,825 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:20:35,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:20:35,839 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:20:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:35,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:35,861 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:20:35,861 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,865 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,865 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:20:35,899 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:35,900 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:35,901 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:20:35,901 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:35,923 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:35,923 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,925 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,941 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:35,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:35,943 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,945 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,960 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2018-11-23 07:20:35,962 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:35,964 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:35,965 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:35,965 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,969 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,972 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:35,983 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:81, output treesize:56 [2018-11-23 07:20:36,038 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:36,040 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:36,041 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:36,042 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:20:36,042 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,069 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,072 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,094 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,096 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,122 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 66 [2018-11-23 07:20:36,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:36,128 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:36,132 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:36,133 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,137 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,146 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,171 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 53 [2018-11-23 07:20:36,173 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:20:36,175 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:36,177 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:20:36,178 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,182 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,191 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,217 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2018-11-23 07:20:36,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:20:36,222 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:36,232 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:20:36,232 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,237 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,242 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,255 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,255 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 9 variables, input treesize:143, output treesize:112 [2018-11-23 07:20:36,345 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 111 [2018-11-23 07:20:36,347 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 32 [2018-11-23 07:20:36,347 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,356 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 63 [2018-11-23 07:20:36,356 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,364 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,373 INFO L478 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 55 treesize of output 47 [2018-11-23 07:20:36,374 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-11-23 07:20:36,375 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,381 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:20:36,381 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,385 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,391 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,391 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:142, output treesize:32 [2018-11-23 07:20:36,417 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-11-23 07:20:36,418 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:20:36,418 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,422 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:20:36,422 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,423 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,426 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,426 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:36, output treesize:5 [2018-11-23 07:20:36,448 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:36,448 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:36,587 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,590 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,590 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,594 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,615 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,617 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,618 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,621 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,640 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,644 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,645 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,650 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,651 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,655 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,656 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,662 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:36,698 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 20 dim-0 vars, and 4 xjuncts. [2018-11-23 07:20:36,698 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 6 variables, input treesize:103, output treesize:234 [2018-11-23 07:20:36,912 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 126 [2018-11-23 07:20:36,931 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:36,931 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,947 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56 [2018-11-23 07:20:36,949 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 47 [2018-11-23 07:20:36,949 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,952 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,958 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:36,961 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 88 [2018-11-23 07:20:36,984 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:36,984 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,000 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 61 [2018-11-23 07:20:37,002 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2018-11-23 07:20:37,002 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,007 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,011 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 83 [2018-11-23 07:20:37,036 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:37,036 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,049 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:20:37,051 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:20:37,051 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,053 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,058 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,081 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 53 [2018-11-23 07:20:37,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:37,097 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2018-11-23 07:20:37,111 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2018-11-23 07:20:37,111 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,113 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,117 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,120 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 44 [2018-11-23 07:20:37,133 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:37,134 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2018-11-23 07:20:37,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2018-11-23 07:20:37,146 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,148 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,152 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,167 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:37,172 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:37,173 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:37,178 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:37,193 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 2 xjuncts. [2018-11-23 07:20:37,193 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 12 variables, input treesize:141, output treesize:158 [2018-11-23 07:20:37,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 62 [2018-11-23 07:20:37,298 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,300 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,300 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,301 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,310 INFO L478 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 86 [2018-11-23 07:20:37,351 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,352 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-23 07:20:37,352 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,368 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,369 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,369 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,369 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,370 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,370 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,370 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 44 [2018-11-23 07:20:37,371 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,386 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,386 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,387 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-23 07:20:37,387 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,393 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,412 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,418 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2018-11-23 07:20:37,444 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,445 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,445 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2018-11-23 07:20:37,445 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,458 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2018-11-23 07:20:37,458 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,465 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 50 [2018-11-23 07:20:37,487 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2018-11-23 07:20:37,487 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,493 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,518 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:20:37,519 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,541 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:37,546 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2018-11-23 07:20:37,549 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,554 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 64 [2018-11-23 07:20:37,598 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2018-11-23 07:20:37,598 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,599 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,600 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,600 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-23 07:20:37,600 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,602 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,603 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,603 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 29 [2018-11-23 07:20:37,603 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,635 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,635 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2018-11-23 07:20:37,636 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,637 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,638 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,638 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,639 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,639 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,639 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,640 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 50 [2018-11-23 07:20:37,640 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,659 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:37,677 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2018-11-23 07:20:37,690 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,690 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2018-11-23 07:20:37,691 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2018-11-23 07:20:37,693 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,695 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,695 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,695 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-23 07:20:37,696 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,709 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:37,728 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-23 07:20:37,728 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,742 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:37,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 96 [2018-11-23 07:20:37,758 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2018-11-23 07:20:37,772 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,773 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,773 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 39 [2018-11-23 07:20:37,773 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,775 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,776 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39 [2018-11-23 07:20:37,776 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,778 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2018-11-23 07:20:37,779 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,796 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:37,881 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2018-11-23 07:20:37,881 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:37,968 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,968 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,970 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,970 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,971 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:37,977 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 107 [2018-11-23 07:20:38,024 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,024 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,024 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-23 07:20:38,025 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,026 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,027 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,027 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 07:20:38,027 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,055 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,056 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,056 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,057 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,057 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,057 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,058 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 49 [2018-11-23 07:20:38,058 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,060 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,060 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,061 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,061 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,061 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,062 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,062 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2018-11-23 07:20:38,062 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,083 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:38,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 53 [2018-11-23 07:20:38,172 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,172 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2018-11-23 07:20:38,173 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,174 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2018-11-23 07:20:38,174 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,176 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,177 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,177 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-23 07:20:38,177 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,191 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:38,341 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-11-23 07:20:38,342 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,343 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2018-11-23 07:20:38,343 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,415 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,415 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 80 [2018-11-23 07:20:38,437 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,438 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,438 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2018-11-23 07:20:38,438 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,440 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,441 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,441 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-23 07:20:38,441 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,454 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:38,536 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,536 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,537 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,538 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,538 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,552 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 107 [2018-11-23 07:20:38,601 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,602 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,602 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,603 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,603 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,603 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,604 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 49 [2018-11-23 07:20:38,604 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,606 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,606 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,607 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,607 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,608 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,608 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,608 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2018-11-23 07:20:38,609 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,640 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,640 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,640 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-23 07:20:38,641 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,642 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,642 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,643 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 07:20:38,643 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,666 INFO L267 ElimStorePlain]: Start of recursive call 45: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:38,738 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2018-11-23 07:20:38,738 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,739 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2018-11-23 07:20:38,740 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,780 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 71 [2018-11-23 07:20:38,780 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,869 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,869 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,871 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,871 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,871 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 104 [2018-11-23 07:20:38,925 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,926 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,926 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-11-23 07:20:38,927 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,929 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,930 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,930 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-11-23 07:20:38,931 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,961 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,961 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,962 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,962 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,962 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,963 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,963 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 46 [2018-11-23 07:20:38,963 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,965 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,965 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,966 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,966 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,966 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,967 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:38,967 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 46 [2018-11-23 07:20:38,967 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:38,984 INFO L267 ElimStorePlain]: Start of recursive call 53: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:39,019 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,025 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 63 [2018-11-23 07:20:39,081 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,082 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,083 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-23 07:20:39,083 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:39,085 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,085 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,086 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,086 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,087 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,087 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,087 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 49 [2018-11-23 07:20:39,088 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:39,089 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,090 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,090 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,090 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,091 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,091 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,092 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2018-11-23 07:20:39,092 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:39,131 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-11-23 07:20:39,132 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:39,133 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,134 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:39,134 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 07:20:39,134 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:39,153 INFO L267 ElimStorePlain]: Start of recursive call 58: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:39,177 INFO L267 ElimStorePlain]: Start of recursive call 25: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:39,210 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 9 dim-0 vars, and 5 xjuncts. [2018-11-23 07:20:39,210 INFO L202 ElimStorePlain]: Needed 63 recursive calls to eliminate 6 variables, input treesize:82, output treesize:122 [2018-11-23 07:20:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:39,324 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:20:39,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 33 [2018-11-23 07:20:39,324 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:20:39,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-23 07:20:39,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-23 07:20:39,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=959, Unknown=0, NotChecked=0, Total=1056 [2018-11-23 07:20:39,325 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand 25 states. [2018-11-23 07:20:42,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:42,416 INFO L93 Difference]: Finished difference Result 257 states and 280 transitions. [2018-11-23 07:20:42,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-23 07:20:42,416 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 37 [2018-11-23 07:20:42,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:42,416 INFO L225 Difference]: With dead ends: 257 [2018-11-23 07:20:42,416 INFO L226 Difference]: Without dead ends: 255 [2018-11-23 07:20:42,417 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 864 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=898, Invalid=3932, Unknown=0, NotChecked=0, Total=4830 [2018-11-23 07:20:42,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-11-23 07:20:42,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 72. [2018-11-23 07:20:42,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-23 07:20:42,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2018-11-23 07:20:42,427 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 37 [2018-11-23 07:20:42,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:42,427 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2018-11-23 07:20:42,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-23 07:20:42,427 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2018-11-23 07:20:42,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 07:20:42,427 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:42,427 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:20:42,428 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:42,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:42,428 INFO L82 PathProgramCache]: Analyzing trace with hash 479161849, now seen corresponding path program 2 times [2018-11-23 07:20:42,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:42,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:42,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:20:42,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:42,428 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:42,624 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:42,624 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:42,624 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:42,625 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:20:42,625 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:20:42,625 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:42,625 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:20:42,636 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:20:42,636 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 07:20:42,656 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 07:20:42,657 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:20:42,659 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:42,661 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:20:42,661 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,669 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,669 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:20:42,688 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,689 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:20:42,690 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,706 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:42,708 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:42,708 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,710 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,724 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 07:20:42,726 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:42,728 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,729 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:42,730 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,732 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,736 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,746 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:42,748 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:42,748 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,750 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,758 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,758 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:71, output treesize:46 [2018-11-23 07:20:42,781 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,782 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,784 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,784 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:20:42,784 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,817 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:42,820 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:42,850 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,851 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 61 [2018-11-23 07:20:42,853 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 25 [2018-11-23 07:20:42,856 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,857 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 31 [2018-11-23 07:20:42,858 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,864 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,873 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,901 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 07:20:42,903 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:42,905 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,907 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:42,907 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,911 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,915 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,940 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:42,942 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:42,959 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,962 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2018-11-23 07:20:42,964 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:20:42,966 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:42,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:20:42,967 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,971 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,976 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:42,991 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 8 variables, input treesize:146, output treesize:82 [2018-11-23 07:20:43,105 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:43,106 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:43,106 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 72 [2018-11-23 07:20:43,113 INFO L478 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 39 treesize of output 47 [2018-11-23 07:20:43,114 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:43,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2018-11-23 07:20:43,126 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,131 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,140 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 07:20:43,141 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-23 07:20:43,142 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:20:43,147 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,148 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,154 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:95, output treesize:26 [2018-11-23 07:20:43,176 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:43,177 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:43,177 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-11-23 07:20:43,181 INFO L478 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 07:20:43,182 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 07:20:43,189 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:43,191 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-11-23 07:20:43,191 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,194 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,197 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,197 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:30, output treesize:5 [2018-11-23 07:20:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:43,217 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:43,359 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,361 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,374 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,376 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,388 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,393 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,402 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 10 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:43,403 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:106, output treesize:163 [2018-11-23 07:20:43,508 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 81 [2018-11-23 07:20:43,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:43,515 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:20:43,525 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:20:43,525 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,527 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,532 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,535 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 86 [2018-11-23 07:20:43,541 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:43,542 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,549 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 63 [2018-11-23 07:20:43,551 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 53 [2018-11-23 07:20:43,551 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,556 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,560 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,564 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 126 [2018-11-23 07:20:43,571 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:43,572 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,580 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2018-11-23 07:20:43,582 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2018-11-23 07:20:43,582 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,585 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,590 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,613 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 53 [2018-11-23 07:20:43,619 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:43,619 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,625 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2018-11-23 07:20:43,627 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2018-11-23 07:20:43,627 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,629 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,633 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,636 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 46 [2018-11-23 07:20:43,642 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:43,642 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,656 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 07:20:43,658 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-23 07:20:43,658 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,660 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,664 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,683 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,689 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,690 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,696 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:43,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 11 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:43,713 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 10 variables, input treesize:141, output treesize:180 [2018-11-23 07:20:43,821 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 57 [2018-11-23 07:20:43,824 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2018-11-23 07:20:43,824 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,849 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:43,854 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 55 [2018-11-23 07:20:43,879 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:43,880 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:43,881 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-23 07:20:43,881 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2018-11-23 07:20:43,893 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,900 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,920 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:20:43,920 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,934 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 38 [2018-11-23 07:20:43,939 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2018-11-23 07:20:43,940 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,943 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,954 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:43,955 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:43,955 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2018-11-23 07:20:43,955 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:43,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:43,987 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 64 [2018-11-23 07:20:43,990 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 57 [2018-11-23 07:20:44,006 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2018-11-23 07:20:44,007 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:44,008 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-23 07:20:44,008 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,020 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:44,068 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,077 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 77 [2018-11-23 07:20:44,123 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,124 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 40 [2018-11-23 07:20:44,124 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,127 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,127 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,128 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,132 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 63 [2018-11-23 07:20:44,132 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:44,134 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,135 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,136 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,139 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 65 [2018-11-23 07:20:44,140 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:44,194 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2018-11-23 07:20:44,194 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:44,196 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 07:20:44,196 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,237 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,237 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,237 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2018-11-23 07:20:44,238 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,239 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,240 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,240 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-11-23 07:20:44,240 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,242 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,242 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-23 07:20:44,243 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,277 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2018-11-23 07:20:44,278 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 07:20:44,279 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,281 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2018-11-23 07:20:44,281 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,307 INFO L267 ElimStorePlain]: Start of recursive call 15: 4 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 07:20:44,382 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2018-11-23 07:20:44,382 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,445 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 51 [2018-11-23 07:20:44,460 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2018-11-23 07:20:44,460 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:44,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-23 07:20:44,462 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,472 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:44,536 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,541 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 52 [2018-11-23 07:20:44,570 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-11-23 07:20:44,570 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,585 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,585 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,586 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-11-23 07:20:44,586 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,594 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,617 INFO L267 ElimStorePlain]: Start of recursive call 11: 8 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 07:20:44,623 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,638 INFO L478 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 96 [2018-11-23 07:20:44,644 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,647 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:44,648 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 75 [2018-11-23 07:20:44,648 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:44,861 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2018-11-23 07:20:44,862 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,046 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:45,055 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 79 [2018-11-23 07:20:45,112 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2018-11-23 07:20:45,112 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,117 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 41 [2018-11-23 07:20:45,118 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:45,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2018-11-23 07:20:45,123 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:45,175 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:20:45,175 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,176 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2018-11-23 07:20:45,177 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,178 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-23 07:20:45,178 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,220 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:45,220 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:45,220 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2018-11-23 07:20:45,220 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,222 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:45,222 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:45,223 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 48 [2018-11-23 07:20:45,223 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,262 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:45,264 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:45,270 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 52 [2018-11-23 07:20:45,270 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:45,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2018-11-23 07:20:45,275 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:45,305 INFO L267 ElimStorePlain]: Start of recursive call 37: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:45,510 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:45,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 75 [2018-11-23 07:20:45,548 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2018-11-23 07:20:45,548 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,565 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:45,565 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:45,565 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 44 [2018-11-23 07:20:45,566 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,576 INFO L267 ElimStorePlain]: Start of recursive call 48: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 45 [2018-11-23 07:20:45,788 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:45,788 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 07:20:45,789 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:45,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2018-11-23 07:20:45,810 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:45,814 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2018-11-23 07:20:45,815 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:45,831 INFO L267 ElimStorePlain]: Start of recursive call 51: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:46,150 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 58 [2018-11-23 07:20:46,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2018-11-23 07:20:46,157 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:46,163 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:46,250 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,252 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 72 [2018-11-23 07:20:46,331 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:46,332 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,332 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,332 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2018-11-23 07:20:46,333 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:46,372 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,374 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,380 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2018-11-23 07:20:46,380 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:46,382 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,384 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,390 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2018-11-23 07:20:46,390 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:46,441 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2018-11-23 07:20:46,441 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:46,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2018-11-23 07:20:46,446 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:46,468 INFO L267 ElimStorePlain]: Start of recursive call 57: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:46,813 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,816 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,826 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 93 [2018-11-23 07:20:46,874 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:46,874 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,875 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,875 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2018-11-23 07:20:46,876 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:46,909 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,910 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 31 [2018-11-23 07:20:46,910 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:46,912 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,913 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 39 [2018-11-23 07:20:46,913 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:46,941 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,943 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,949 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2018-11-23 07:20:46,950 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:46,952 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,954 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:46,959 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 62 [2018-11-23 07:20:46,960 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:46,982 INFO L267 ElimStorePlain]: Start of recursive call 63: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:47,143 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2018-11-23 07:20:47,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:20:47,149 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:47,153 INFO L267 ElimStorePlain]: Start of recursive call 69: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:47,154 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2018-11-23 07:20:47,159 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:20:47,159 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:47,163 INFO L267 ElimStorePlain]: Start of recursive call 71: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:47,425 INFO L267 ElimStorePlain]: Start of recursive call 34: 34 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 07:20:47,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 12 dim-0 vars, and 7 xjuncts. [2018-11-23 07:20:47,463 INFO L202 ElimStorePlain]: Needed 72 recursive calls to eliminate 7 variables, input treesize:94, output treesize:201 [2018-11-23 07:20:47,614 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 62 [2018-11-23 07:20:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:47,641 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:20:47,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 30 [2018-11-23 07:20:47,641 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:20:47,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-23 07:20:47,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-23 07:20:47,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2018-11-23 07:20:47,642 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand 22 states. [2018-11-23 07:20:48,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:48,377 INFO L93 Difference]: Finished difference Result 114 states and 126 transitions. [2018-11-23 07:20:48,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 07:20:48,377 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 37 [2018-11-23 07:20:48,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:48,378 INFO L225 Difference]: With dead ends: 114 [2018-11-23 07:20:48,378 INFO L226 Difference]: Without dead ends: 112 [2018-11-23 07:20:48,379 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=254, Invalid=1228, Unknown=0, NotChecked=0, Total=1482 [2018-11-23 07:20:48,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-11-23 07:20:48,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 68. [2018-11-23 07:20:48,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-23 07:20:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2018-11-23 07:20:48,388 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 37 [2018-11-23 07:20:48,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:48,388 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2018-11-23 07:20:48,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-23 07:20:48,388 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2018-11-23 07:20:48,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 07:20:48,389 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:48,389 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:20:48,389 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:48,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:48,389 INFO L82 PathProgramCache]: Analyzing trace with hash 378566009, now seen corresponding path program 2 times [2018-11-23 07:20:48,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:48,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:48,390 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:20:48,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:48,390 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:48,659 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:48,659 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:48,659 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:48,659 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:20:48,659 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:20:48,660 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:48,660 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:20:48,673 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:20:48,673 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 07:20:48,695 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 07:20:48,695 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:20:48,698 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:48,700 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:20:48,700 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,705 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:20:48,726 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:48,728 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:48,729 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:20:48,730 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 31 [2018-11-23 07:20:48,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:48,759 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:48,760 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:48,760 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,763 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,768 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,779 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:48,781 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:48,781 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,783 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,793 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:48,794 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:48,795 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,796 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,804 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:71, output treesize:46 [2018-11-23 07:20:48,828 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:48,829 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:48,830 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:48,830 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:20:48,831 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,864 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 07:20:48,866 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:48,870 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:48,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:48,872 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,877 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,883 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,911 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 50 [2018-11-23 07:20:48,913 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:20:48,913 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,920 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,940 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:48,941 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 51 [2018-11-23 07:20:48,943 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-23 07:20:48,943 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,951 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,967 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:48,970 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 07:20:48,972 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:20:48,972 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,975 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,986 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:48,989 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2018-11-23 07:20:48,990 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:48,990 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:48,994 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,003 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,003 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 8 variables, input treesize:131, output treesize:67 [2018-11-23 07:20:49,067 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:49,068 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:49,068 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 72 [2018-11-23 07:20:49,073 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2018-11-23 07:20:49,074 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:49,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2018-11-23 07:20:49,088 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,094 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 63 [2018-11-23 07:20:49,095 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:49,114 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:49,130 INFO L478 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 47 treesize of output 39 [2018-11-23 07:20:49,131 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-23 07:20:49,131 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,137 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:20:49,138 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,142 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,144 INFO L478 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 47 treesize of output 39 [2018-11-23 07:20:49,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-23 07:20:49,145 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,152 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:20:49,152 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,156 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,173 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,173 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:94, output treesize:13 [2018-11-23 07:20:49,188 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:20:49,189 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 07:20:49,189 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,190 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,192 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:20:49,199 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:49,200 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:49,321 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,324 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,324 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,328 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,347 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,350 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,351 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,353 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,370 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,375 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,376 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,380 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,381 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,386 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,386 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,390 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 17 dim-0 vars, and 4 xjuncts. [2018-11-23 07:20:49,422 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:93, output treesize:216 [2018-11-23 07:20:49,665 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 46 [2018-11-23 07:20:49,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 106 [2018-11-23 07:20:49,698 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:49,698 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,706 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-23 07:20:49,708 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 39 [2018-11-23 07:20:49,708 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,711 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,716 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,719 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 76 [2018-11-23 07:20:49,726 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:49,726 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,733 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 53 [2018-11-23 07:20:49,735 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 43 [2018-11-23 07:20:49,735 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,740 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,744 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,748 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 71 [2018-11-23 07:20:49,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:49,755 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,763 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:20:49,765 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:20:49,765 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,767 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,772 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,793 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 36 [2018-11-23 07:20:49,798 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:49,798 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,804 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-11-23 07:20:49,806 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 11 [2018-11-23 07:20:49,806 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,808 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,811 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,814 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 43 [2018-11-23 07:20:49,820 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:49,820 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,827 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2018-11-23 07:20:49,829 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2018-11-23 07:20:49,829 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,835 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,839 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,851 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,855 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,855 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,859 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:49,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:49,870 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 10 variables, input treesize:113, output treesize:86 [2018-11-23 07:20:49,926 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2018-11-23 07:20:49,933 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 38 [2018-11-23 07:20:49,947 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2018-11-23 07:20:49,947 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:49,966 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-11-23 07:20:49,967 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:49,969 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:49,970 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:49,976 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 45 [2018-11-23 07:20:49,977 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:49,994 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:50,010 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-23 07:20:50,011 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,040 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:50,048 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2018-11-23 07:20:50,051 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:50,051 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,078 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,080 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,082 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-11-23 07:20:50,082 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,093 INFO L267 ElimStorePlain]: Start of recursive call 8: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:50,117 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 57 [2018-11-23 07:20:50,121 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-11-23 07:20:50,122 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,194 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2018-11-23 07:20:50,207 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-23 07:20:50,207 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,213 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2018-11-23 07:20:50,214 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:50,226 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:50,306 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,308 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,308 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2018-11-23 07:20:50,308 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,312 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,312 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2018-11-23 07:20:50,313 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,317 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,318 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,318 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2018-11-23 07:20:50,319 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,379 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-23 07:20:50,379 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,437 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 37 [2018-11-23 07:20:50,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2018-11-23 07:20:50,454 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:50,456 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,458 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,463 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 44 [2018-11-23 07:20:50,464 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:50,466 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,468 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,474 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 44 [2018-11-23 07:20:50,474 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:50,496 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 8 [2018-11-23 07:20:50,496 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,506 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:50,615 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,617 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,628 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2018-11-23 07:20:50,664 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,665 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,671 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2018-11-23 07:20:50,672 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:50,674 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,676 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:50,682 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 41 [2018-11-23 07:20:50,682 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:50,711 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-11-23 07:20:50,712 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,716 INFO L267 ElimStorePlain]: Start of recursive call 25: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:50,733 INFO L267 ElimStorePlain]: Start of recursive call 11: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:50,750 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 4 xjuncts. [2018-11-23 07:20:50,750 INFO L202 ElimStorePlain]: Needed 28 recursive calls to eliminate 5 variables, input treesize:47, output treesize:93 [2018-11-23 07:20:50,800 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:50,815 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:20:50,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 27 [2018-11-23 07:20:50,815 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:20:50,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 07:20:50,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 07:20:50,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2018-11-23 07:20:50,816 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 20 states. [2018-11-23 07:20:51,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:51,585 INFO L93 Difference]: Finished difference Result 78 states and 89 transitions. [2018-11-23 07:20:51,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 07:20:51,585 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 37 [2018-11-23 07:20:51,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:51,586 INFO L225 Difference]: With dead ends: 78 [2018-11-23 07:20:51,586 INFO L226 Difference]: Without dead ends: 76 [2018-11-23 07:20:51,586 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=274, Invalid=1058, Unknown=0, NotChecked=0, Total=1332 [2018-11-23 07:20:51,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-23 07:20:51,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 49. [2018-11-23 07:20:51,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-23 07:20:51,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2018-11-23 07:20:51,594 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 37 [2018-11-23 07:20:51,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:51,594 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2018-11-23 07:20:51,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 07:20:51,594 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2018-11-23 07:20:51,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 07:20:51,594 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:51,594 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:20:51,595 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:51,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:51,595 INFO L82 PathProgramCache]: Analyzing trace with hash 717108763, now seen corresponding path program 3 times [2018-11-23 07:20:51,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:51,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:51,595 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:20:51,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:51,596 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:52,013 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:52,013 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:52,013 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:52,013 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:20:52,013 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:20:52,013 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:52,013 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:20:52,019 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 07:20:52,019 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-11-23 07:20:52,038 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 07:20:52,038 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:20:52,041 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:52,043 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:20:52,044 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,048 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,048 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:20:52,084 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,085 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,086 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:20:52,086 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,105 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:52,107 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:52,108 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,110 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:52,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:52,127 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,129 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2018-11-23 07:20:52,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:52,147 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,150 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:52,150 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,153 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,157 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,168 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:69, output treesize:44 [2018-11-23 07:20:52,194 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,195 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,196 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,197 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:20:52,197 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,228 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,231 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,257 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 37 [2018-11-23 07:20:52,259 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:52,262 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,263 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:52,263 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,267 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,273 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,293 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,294 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 59 [2018-11-23 07:20:52,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 25 [2018-11-23 07:20:52,298 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,299 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 31 [2018-11-23 07:20:52,300 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,305 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,313 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,328 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,330 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,343 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,346 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2018-11-23 07:20:52,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:20:52,350 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,351 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:20:52,351 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,355 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,360 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,371 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,371 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 8 variables, input treesize:129, output treesize:65 [2018-11-23 07:20:52,443 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,443 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:52,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 70 [2018-11-23 07:20:52,450 INFO L478 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 37 treesize of output 43 [2018-11-23 07:20:52,451 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:52,463 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 38 [2018-11-23 07:20:52,464 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,470 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,478 INFO L478 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 26 treesize of output 22 [2018-11-23 07:20:52,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-23 07:20:52,480 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,483 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-23 07:20:52,484 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,485 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,489 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,490 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:92, output treesize:11 [2018-11-23 07:20:52,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:20:52,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 07:20:52,502 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,503 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,503 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,504 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:20:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:52,508 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:52,631 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,634 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,634 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,638 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,657 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,662 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,662 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,666 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,667 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,673 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,673 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,678 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,709 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,713 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,714 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,717 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:52,718 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,723 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,724 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,729 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:52,770 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 17 dim-0 vars, and 4 xjuncts. [2018-11-23 07:20:52,770 INFO L202 ElimStorePlain]: Needed 21 recursive calls to eliminate 5 variables, input treesize:93, output treesize:216 [2018-11-23 07:20:53,153 WARN L180 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 46 [2018-11-23 07:20:53,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 71 [2018-11-23 07:20:53,201 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:53,201 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:20:53,212 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:20:53,212 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,214 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,219 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,222 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 76 [2018-11-23 07:20:53,229 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:53,229 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 53 [2018-11-23 07:20:53,238 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 43 [2018-11-23 07:20:53,238 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,243 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,247 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,250 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 106 [2018-11-23 07:20:53,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:53,258 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,266 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-23 07:20:53,269 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 39 [2018-11-23 07:20:53,269 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,271 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,277 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,296 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:53,300 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:53,301 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:53,306 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:53,322 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2018-11-23 07:20:53,329 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:53,329 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,338 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-11-23 07:20:53,340 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2018-11-23 07:20:53,340 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,344 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,347 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,350 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2018-11-23 07:20:53,356 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:53,356 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,362 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2018-11-23 07:20:53,363 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 07:20:53,364 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,365 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,369 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,381 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:53,381 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 10 variables, input treesize:113, output treesize:86 [2018-11-23 07:20:53,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2018-11-23 07:20:53,445 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,446 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-11-23 07:20:53,447 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,456 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:53,456 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,467 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:53,472 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2018-11-23 07:20:53,474 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-23 07:20:53,475 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,494 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 38 [2018-11-23 07:20:53,509 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2018-11-23 07:20:53,509 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,526 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,528 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,534 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 45 [2018-11-23 07:20:53,535 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:53,540 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-11-23 07:20:53,540 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:53,554 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:53,564 INFO L267 ElimStorePlain]: Start of recursive call 5: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:53,576 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 57 [2018-11-23 07:20:53,579 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-23 07:20:53,579 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,617 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2018-11-23 07:20:53,617 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,649 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 39 [2018-11-23 07:20:53,663 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2018-11-23 07:20:53,663 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:53,665 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-23 07:20:53,665 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,674 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:53,723 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,725 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,735 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 67 [2018-11-23 07:20:53,783 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2018-11-23 07:20:53,783 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,804 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,806 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,812 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 44 [2018-11-23 07:20:53,812 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:53,814 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,816 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,822 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 44 [2018-11-23 07:20:53,822 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:53,835 INFO L267 ElimStorePlain]: Start of recursive call 17: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,935 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 37 [2018-11-23 07:20:53,948 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 8 [2018-11-23 07:20:53,948 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:53,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2018-11-23 07:20:53,967 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:53,969 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,971 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:53,976 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 44 [2018-11-23 07:20:53,977 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:53,991 INFO L267 ElimStorePlain]: Start of recursive call 21: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:54,007 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:54,008 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:54,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2018-11-23 07:20:54,053 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:54,054 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:54,054 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:54,055 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2018-11-23 07:20:54,055 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:54,072 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:54,074 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:54,079 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2018-11-23 07:20:54,080 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:54,082 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:54,084 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:54,089 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 41 [2018-11-23 07:20:54,090 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:54,107 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2018-11-23 07:20:54,107 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:54,111 INFO L267 ElimStorePlain]: Start of recursive call 25: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:54,127 INFO L267 ElimStorePlain]: Start of recursive call 11: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:54,145 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 4 xjuncts. [2018-11-23 07:20:54,145 INFO L202 ElimStorePlain]: Needed 29 recursive calls to eliminate 5 variables, input treesize:47, output treesize:93 [2018-11-23 07:20:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:54,224 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:20:54,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 10] total 29 [2018-11-23 07:20:54,224 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:20:54,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-23 07:20:54,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-23 07:20:54,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2018-11-23 07:20:54,225 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand 22 states. [2018-11-23 07:20:57,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:20:57,097 INFO L93 Difference]: Finished difference Result 232 states and 255 transitions. [2018-11-23 07:20:57,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-11-23 07:20:57,097 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 39 [2018-11-23 07:20:57,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:20:57,098 INFO L225 Difference]: With dead ends: 232 [2018-11-23 07:20:57,098 INFO L226 Difference]: Without dead ends: 230 [2018-11-23 07:20:57,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1052, Invalid=4060, Unknown=0, NotChecked=0, Total=5112 [2018-11-23 07:20:57,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-11-23 07:20:57,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 104. [2018-11-23 07:20:57,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-23 07:20:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 125 transitions. [2018-11-23 07:20:57,115 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 125 transitions. Word has length 39 [2018-11-23 07:20:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:20:57,116 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 125 transitions. [2018-11-23 07:20:57,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-23 07:20:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 125 transitions. [2018-11-23 07:20:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 07:20:57,116 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:20:57,116 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:20:57,117 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:20:57,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:20:57,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1466212965, now seen corresponding path program 2 times [2018-11-23 07:20:57,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:20:57,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:57,117 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:20:57,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:20:57,118 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:20:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:20:57,360 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:57,360 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:57,360 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:20:57,361 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:20:57,361 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:20:57,361 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:20:57,361 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:20:57,367 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:20:57,367 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 07:20:57,388 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 07:20:57,388 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:20:57,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:20:57,392 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:20:57,392 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,400 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,401 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:20:57,408 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,409 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,409 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:20:57,410 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,425 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:57,427 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:57,427 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,429 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 31 [2018-11-23 07:20:57,445 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:57,447 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,448 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:57,448 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,451 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,455 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,466 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:20:57,467 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:20:57,467 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,469 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,477 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,477 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:71, output treesize:46 [2018-11-23 07:20:57,501 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,502 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,504 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:20:57,504 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 50 [2018-11-23 07:20:57,545 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:20:57,545 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,552 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,580 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 07:20:57,582 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:20:57,585 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,586 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:20:57,586 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,590 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,595 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,614 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:57,616 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:57,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-23 07:20:57,637 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:20:57,639 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,640 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:20:57,640 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,645 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,649 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,666 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,667 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 51 [2018-11-23 07:20:57,668 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-23 07:20:57,669 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,675 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,688 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,688 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 8 variables, input treesize:137, output treesize:73 [2018-11-23 07:20:57,825 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,827 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,827 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 72 [2018-11-23 07:20:57,833 INFO L478 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 39 treesize of output 47 [2018-11-23 07:20:57,833 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:57,844 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2018-11-23 07:20:57,844 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:57,849 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:57,858 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 07:20:57,859 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-23 07:20:57,859 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,863 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:20:57,863 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,865 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:57,870 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:95, output treesize:26 [2018-11-23 07:20:57,892 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,892 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:57,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-11-23 07:20:57,897 INFO L478 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 27 [2018-11-23 07:20:57,898 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 07:20:57,905 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:57,905 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-11-23 07:20:57,905 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,910 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:57,910 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:30, output treesize:5 [2018-11-23 07:20:57,930 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:20:57,931 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:20:58,092 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:58,098 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:58,112 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:58,114 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:58,125 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:58,127 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:58,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 10 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:58,136 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:106, output treesize:163 [2018-11-23 07:20:58,246 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 102 [2018-11-23 07:20:58,253 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:58,253 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,261 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2018-11-23 07:20:58,263 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2018-11-23 07:20:58,264 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,266 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,271 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 110 [2018-11-23 07:20:58,283 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:58,283 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,293 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 87 [2018-11-23 07:20:58,295 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 77 [2018-11-23 07:20:58,295 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,300 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,305 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,309 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 81 [2018-11-23 07:20:58,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:58,316 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2018-11-23 07:20:58,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2018-11-23 07:20:58,326 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,329 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,334 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,355 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:58,361 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:58,362 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:58,369 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:20:58,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 106 [2018-11-23 07:20:58,396 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:58,396 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2018-11-23 07:20:58,405 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2018-11-23 07:20:58,405 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,409 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,414 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 101 [2018-11-23 07:20:58,424 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:20:58,424 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,431 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:20:58,433 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:20:58,433 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,434 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,439 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,453 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 11 dim-0 vars, and 2 xjuncts. [2018-11-23 07:20:58,454 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 10 variables, input treesize:141, output treesize:180 [2018-11-23 07:20:58,554 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 64 [2018-11-23 07:20:58,563 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 65 [2018-11-23 07:20:58,595 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 51 [2018-11-23 07:20:58,596 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:58,598 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2018-11-23 07:20:58,598 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,604 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 43 [2018-11-23 07:20:58,604 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:58,659 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:58,661 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:58,670 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 69 [2018-11-23 07:20:58,671 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:58,676 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 50 [2018-11-23 07:20:58,676 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:58,707 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:58,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2018-11-23 07:20:58,761 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:20:58,761 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,765 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,767 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 36 [2018-11-23 07:20:58,773 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:20:58,773 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,778 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,780 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2018-11-23 07:20:58,787 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:20:58,787 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,792 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2018-11-23 07:20:58,836 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,878 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:58,883 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 62 [2018-11-23 07:20:58,910 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:58,911 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:58,911 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2018-11-23 07:20:58,912 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,924 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-11-23 07:20:58,925 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,931 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,978 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 37 [2018-11-23 07:20:58,984 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-11-23 07:20:58,985 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:58,989 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,028 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-11-23 07:20:59,038 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-23 07:20:59,038 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,042 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-11-23 07:20:59,043 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-11-23 07:20:59,051 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:20:59,129 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 07:20:59,138 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 57 [2018-11-23 07:20:59,141 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2018-11-23 07:20:59,141 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,166 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2018-11-23 07:20:59,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 9 [2018-11-23 07:20:59,172 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,176 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,197 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 55 [2018-11-23 07:20:59,228 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2018-11-23 07:20:59,228 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,240 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,240 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,241 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-23 07:20:59,241 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,248 INFO L267 ElimStorePlain]: Start of recursive call 28: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,267 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:20:59,267 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,292 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 38 [2018-11-23 07:20:59,297 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2018-11-23 07:20:59,298 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,301 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,313 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,313 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2018-11-23 07:20:59,314 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,326 INFO L267 ElimStorePlain]: Start of recursive call 24: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:20:59,330 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,344 INFO L478 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 96 [2018-11-23 07:20:59,349 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,351 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,362 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 105 [2018-11-23 07:20:59,441 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 43 [2018-11-23 07:20:59,442 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,443 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 51 [2018-11-23 07:20:59,445 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,493 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:20:59,494 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,494 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,494 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 53 [2018-11-23 07:20:59,495 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,532 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,534 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,540 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 68 [2018-11-23 07:20:59,541 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:59,543 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,545 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:20:59,551 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 76 [2018-11-23 07:20:59,551 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 3 xjuncts. [2018-11-23 07:20:59,580 INFO L267 ElimStorePlain]: Start of recursive call 36: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:20:59,822 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 58 [2018-11-23 07:20:59,829 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2018-11-23 07:20:59,830 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-23 07:20:59,835 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,049 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,052 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,053 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,055 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,071 INFO L478 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 4 new quantified variables, introduced 8 case distinctions, treesize of input 61 treesize of output 129 [2018-11-23 07:21:00,151 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,152 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,152 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,153 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,154 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 65 [2018-11-23 07:21:00,154 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,156 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,157 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,157 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,158 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,159 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 67 [2018-11-23 07:21:00,160 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,216 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:00,216 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,217 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,217 INFO L478 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 54 treesize of output 52 [2018-11-23 07:21:00,217 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,262 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,262 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,263 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,263 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,263 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,264 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,264 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 45 [2018-11-23 07:21:00,264 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,266 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,266 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,267 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,267 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,267 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,268 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,268 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2018-11-23 07:21:00,268 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,311 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,312 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 35 [2018-11-23 07:21:00,313 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,314 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,315 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 37 [2018-11-23 07:21:00,316 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,352 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,352 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-23 07:21:00,353 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,384 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,385 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-23 07:21:00,385 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,387 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,387 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:00,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2018-11-23 07:21:00,388 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,411 INFO L267 ElimStorePlain]: Start of recursive call 44: 6 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:00,799 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2018-11-23 07:21:00,800 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:00,991 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2018-11-23 07:21:00,991 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:01,185 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 53 [2018-11-23 07:21:01,194 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-11-23 07:21:01,194 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:01,201 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:01,385 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:01,387 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:01,398 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 69 [2018-11-23 07:21:01,445 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:01,446 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:01,452 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 46 [2018-11-23 07:21:01,453 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:01,455 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:01,457 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:01,462 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 46 [2018-11-23 07:21:01,463 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:01,509 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2018-11-23 07:21:01,510 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:01,514 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2018-11-23 07:21:01,515 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:01,543 INFO L267 ElimStorePlain]: Start of recursive call 59: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:01,720 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:01,725 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 75 [2018-11-23 07:21:01,759 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:01,759 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:01,760 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 44 [2018-11-23 07:21:01,760 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:01,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2018-11-23 07:21:01,776 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:01,786 INFO L267 ElimStorePlain]: Start of recursive call 64: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:01,859 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 40 [2018-11-23 07:21:01,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-11-23 07:21:01,875 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:01,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-23 07:21:01,877 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:01,888 INFO L267 ElimStorePlain]: Start of recursive call 67: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:01,980 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:01,989 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 79 [2018-11-23 07:21:02,041 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,043 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 42 [2018-11-23 07:21:02,043 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,045 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,046 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,047 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,051 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 65 [2018-11-23 07:21:02,051 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:02,054 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,054 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,055 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,059 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 67 [2018-11-23 07:21:02,059 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:02,117 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,118 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2018-11-23 07:21:02,118 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,120 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,121 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,121 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2018-11-23 07:21:02,121 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,123 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,123 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:02,124 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-11-23 07:21:02,124 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,162 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-11-23 07:21:02,162 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-23 07:21:02,164 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,198 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-23 07:21:02,198 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,203 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 31 [2018-11-23 07:21:02,204 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:02,236 INFO L267 ElimStorePlain]: Start of recursive call 70: 4 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 07:21:02,310 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2018-11-23 07:21:02,310 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,428 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2018-11-23 07:21:02,428 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,493 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 64 [2018-11-23 07:21:02,533 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 38 [2018-11-23 07:21:02,534 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:02,539 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 46 [2018-11-23 07:21:02,540 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:02,577 INFO L267 ElimStorePlain]: Start of recursive call 83: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:02,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2018-11-23 07:21:02,642 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:21:02,642 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,647 INFO L267 ElimStorePlain]: Start of recursive call 86: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,648 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2018-11-23 07:21:02,655 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:21:02,655 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:02,660 INFO L267 ElimStorePlain]: Start of recursive call 88: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:03,323 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 45 [2018-11-23 07:21:03,353 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:03,354 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 07:21:03,354 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:03,376 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2018-11-23 07:21:03,377 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:03,381 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2018-11-23 07:21:03,382 INFO L267 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:03,397 INFO L267 ElimStorePlain]: Start of recursive call 90: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:03,542 INFO L267 ElimStorePlain]: Start of recursive call 35: 34 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 07:21:03,589 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 12 dim-0 vars, and 7 xjuncts. [2018-11-23 07:21:03,589 INFO L202 ElimStorePlain]: Needed 93 recursive calls to eliminate 7 variables, input treesize:94, output treesize:203 [2018-11-23 07:21:03,772 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 62 [2018-11-23 07:21:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:03,798 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:21:03,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 12] total 34 [2018-11-23 07:21:03,798 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:21:03,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-23 07:21:03,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-23 07:21:03,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2018-11-23 07:21:03,798 INFO L87 Difference]: Start difference. First operand 104 states and 125 transitions. Second operand 25 states. [2018-11-23 07:21:05,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:21:05,020 INFO L93 Difference]: Finished difference Result 217 states and 246 transitions. [2018-11-23 07:21:05,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-23 07:21:05,020 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 39 [2018-11-23 07:21:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:21:05,021 INFO L225 Difference]: With dead ends: 217 [2018-11-23 07:21:05,021 INFO L226 Difference]: Without dead ends: 215 [2018-11-23 07:21:05,022 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=379, Invalid=2171, Unknown=0, NotChecked=0, Total=2550 [2018-11-23 07:21:05,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-11-23 07:21:05,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 112. [2018-11-23 07:21:05,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-11-23 07:21:05,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 138 transitions. [2018-11-23 07:21:05,041 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 138 transitions. Word has length 39 [2018-11-23 07:21:05,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:21:05,041 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 138 transitions. [2018-11-23 07:21:05,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-23 07:21:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 138 transitions. [2018-11-23 07:21:05,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 07:21:05,042 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:21:05,042 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:21:05,042 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:21:05,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:21:05,042 INFO L82 PathProgramCache]: Analyzing trace with hash 913161883, now seen corresponding path program 3 times [2018-11-23 07:21:05,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:21:05,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:05,043 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:21:05,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:05,043 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:21:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:21:05,405 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:05,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:05,405 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:21:05,405 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:21:05,405 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:21:05,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:05,405 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:21:05,425 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 07:21:05,425 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-11-23 07:21:05,442 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 07:21:05,442 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:21:05,445 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:21:05,447 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:21:05,447 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,450 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,451 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:21:05,459 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,460 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,460 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:21:05,460 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,480 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:21:05,481 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:05,482 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,484 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,499 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:21:05,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:05,501 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,503 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,518 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 07:21:05,519 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:21:05,521 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,522 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:05,523 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,525 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,529 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,539 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,540 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:77, output treesize:52 [2018-11-23 07:21:05,639 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,641 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,642 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,643 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,643 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:21:05,644 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,672 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:05,675 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:05,705 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:05,707 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:05,729 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,731 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 59 [2018-11-23 07:21:05,734 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 25 [2018-11-23 07:21:05,737 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,739 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 31 [2018-11-23 07:21:05,739 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,745 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,752 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,770 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2018-11-23 07:21:05,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:21:05,779 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,781 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:21:05,782 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,792 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,799 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,816 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,818 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,820 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,823 INFO L478 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 47 treesize of output 88 [2018-11-23 07:21:05,825 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:21:05,827 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,829 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:05,829 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,832 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,840 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,853 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:05,853 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 8 variables, input treesize:136, output treesize:72 [2018-11-23 07:21:05,940 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,943 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:05,945 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 81 [2018-11-23 07:21:05,960 INFO L478 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 39 treesize of output 47 [2018-11-23 07:21:05,960 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 07:21:05,981 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2018-11-23 07:21:05,982 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:05,994 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,009 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 07:21:06,012 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-23 07:21:06,012 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:06,021 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-23 07:21:06,021 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:06,025 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:06,031 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,031 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:99, output treesize:26 [2018-11-23 07:21:06,053 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:06,054 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:06,054 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-11-23 07:21:06,057 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:06,061 INFO L478 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 32 [2018-11-23 07:21:06,061 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 07:21:06,069 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-23 07:21:06,070 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:06,072 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:06,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:06,074 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:30, output treesize:5 [2018-11-23 07:21:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:06,094 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:21:06,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:06,223 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:06,223 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,226 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,244 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:06,247 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:06,248 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,250 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,267 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,271 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,272 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,277 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,277 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,283 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,283 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,287 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:06,318 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 17 dim-0 vars, and 4 xjuncts. [2018-11-23 07:21:06,318 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:93, output treesize:216 [2018-11-23 07:21:07,208 WARN L180 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 46 [2018-11-23 07:21:07,330 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 96 [2018-11-23 07:21:07,336 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:07,337 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,344 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-11-23 07:21:07,345 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 43 [2018-11-23 07:21:07,346 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,348 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,352 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,355 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 75 [2018-11-23 07:21:07,362 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:07,362 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,370 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 07:21:07,372 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-23 07:21:07,373 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,375 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,380 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,383 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 98 [2018-11-23 07:21:07,391 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:07,391 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,399 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 75 [2018-11-23 07:21:07,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 65 [2018-11-23 07:21:07,402 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,407 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,412 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,433 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:07,438 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:07,439 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:07,445 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:07,463 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2018-11-23 07:21:07,470 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:07,471 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:21:07,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:21:07,479 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,481 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,486 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,489 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 84 [2018-11-23 07:21:07,496 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:07,496 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,503 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2018-11-23 07:21:07,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2018-11-23 07:21:07,505 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,508 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,513 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,527 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2018-11-23 07:21:07,527 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 10 variables, input treesize:126, output treesize:136 [2018-11-23 07:21:07,624 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:07,631 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 75 [2018-11-23 07:21:07,634 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:07,639 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 76 [2018-11-23 07:21:07,675 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:07,675 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:07,676 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2018-11-23 07:21:07,676 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,691 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2018-11-23 07:21:07,691 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,700 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,732 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 65 [2018-11-23 07:21:07,746 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-23 07:21:07,746 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2018-11-23 07:21:07,752 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:07,764 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:07,801 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:07,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 88 [2018-11-23 07:21:07,862 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 37 [2018-11-23 07:21:07,862 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,864 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 40 [2018-11-23 07:21:07,864 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,866 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2018-11-23 07:21:07,866 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,909 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2018-11-23 07:21:07,909 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,914 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 40 [2018-11-23 07:21:07,915 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:07,955 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:07,956 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:07,956 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 54 [2018-11-23 07:21:07,956 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:07,958 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:07,958 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:07,959 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 57 [2018-11-23 07:21:07,959 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,001 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 42 [2018-11-23 07:21:08,002 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:08,004 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,006 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,012 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 61 [2018-11-23 07:21:08,013 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:08,043 INFO L267 ElimStorePlain]: Start of recursive call 9: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:08,121 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 37 [2018-11-23 07:21:08,132 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-23 07:21:08,132 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,137 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-11-23 07:21:08,137 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:08,146 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:08,261 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 07:21:08,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 72 [2018-11-23 07:21:08,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2018-11-23 07:21:08,326 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,360 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-11-23 07:21:08,361 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,393 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2018-11-23 07:21:08,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2018-11-23 07:21:08,403 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,411 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,442 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,444 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,445 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,445 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,455 INFO L478 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 94 [2018-11-23 07:21:08,519 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,519 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,519 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-11-23 07:21:08,520 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,545 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,545 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,545 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-11-23 07:21:08,546 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,569 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,570 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,570 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,571 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,571 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,575 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,576 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2018-11-23 07:21:08,576 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,603 INFO L267 ElimStorePlain]: Start of recursive call 27: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:08,634 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,641 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 73 [2018-11-23 07:21:08,684 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,684 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,685 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2018-11-23 07:21:08,685 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,705 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2018-11-23 07:21:08,705 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,716 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,783 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 07:21:08,783 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,797 INFO L267 ElimStorePlain]: Start of recursive call 22: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:08,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 68 [2018-11-23 07:21:08,805 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 71 [2018-11-23 07:21:08,863 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-11-23 07:21:08,863 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,864 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,865 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,865 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-11-23 07:21:08,865 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,867 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,867 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2018-11-23 07:21:08,868 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,909 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,909 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,910 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2018-11-23 07:21:08,910 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,911 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,912 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,912 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,912 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,913 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,913 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:08,914 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2018-11-23 07:21:08,914 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,946 INFO L267 ElimStorePlain]: Start of recursive call 36: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:08,974 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2018-11-23 07:21:08,974 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:08,996 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 46 [2018-11-23 07:21:09,008 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:09,008 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:09,009 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 07:21:09,009 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:09,010 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-11-23 07:21:09,011 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:09,016 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:09,016 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:09,016 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:21:09,017 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:09,030 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:09,052 INFO L267 ElimStorePlain]: Start of recursive call 35: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:09,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 2 dim-2 vars, End of recursive call: 12 dim-0 vars, and 10 xjuncts. [2018-11-23 07:21:09,114 INFO L202 ElimStorePlain]: Needed 46 recursive calls to eliminate 11 variables, input treesize:148, output treesize:276 [2018-11-23 07:21:09,274 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:09,289 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:21:09,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 12] total 34 [2018-11-23 07:21:09,290 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:21:09,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-23 07:21:09,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-23 07:21:09,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1000, Unknown=0, NotChecked=0, Total=1122 [2018-11-23 07:21:09,290 INFO L87 Difference]: Start difference. First operand 112 states and 138 transitions. Second operand 25 states. [2018-11-23 07:21:11,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:21:11,832 INFO L93 Difference]: Finished difference Result 260 states and 293 transitions. [2018-11-23 07:21:11,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-11-23 07:21:11,832 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 39 [2018-11-23 07:21:11,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:21:11,833 INFO L225 Difference]: With dead ends: 260 [2018-11-23 07:21:11,833 INFO L226 Difference]: Without dead ends: 258 [2018-11-23 07:21:11,834 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=814, Invalid=3476, Unknown=0, NotChecked=0, Total=4290 [2018-11-23 07:21:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-11-23 07:21:11,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 127. [2018-11-23 07:21:11,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-11-23 07:21:11,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 159 transitions. [2018-11-23 07:21:11,866 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 159 transitions. Word has length 39 [2018-11-23 07:21:11,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:21:11,866 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 159 transitions. [2018-11-23 07:21:11,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-23 07:21:11,866 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 159 transitions. [2018-11-23 07:21:11,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 07:21:11,867 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:21:11,867 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:21:11,867 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:21:11,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:21:11,867 INFO L82 PathProgramCache]: Analyzing trace with hash 2103312157, now seen corresponding path program 2 times [2018-11-23 07:21:11,867 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:21:11,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:11,868 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:21:11,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:11,868 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:21:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:21:11,946 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-23 07:21:11,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:11,946 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:21:11,946 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:21:11,946 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:21:11,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:11,946 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:21:11,961 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:21:11,961 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 07:21:11,994 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 07:21:11,994 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:21:11,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:21:12,012 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 07:21:12,016 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-23 07:21:12,016 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,019 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,023 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,024 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:9 [2018-11-23 07:21:12,080 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 51 [2018-11-23 07:21:12,096 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 46 [2018-11-23 07:21:12,114 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:12,135 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 42 [2018-11-23 07:21:12,135 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:12,162 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:12,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 42 [2018-11-23 07:21:12,165 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,185 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:12,220 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2018-11-23 07:21:12,224 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:12,225 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:12,225 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,235 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,254 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:12,276 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2018-11-23 07:21:12,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-11-23 07:21:12,278 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,289 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 13 [2018-11-23 07:21:12,289 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,303 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 24 [2018-11-23 07:21:12,303 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:12,314 INFO L267 ElimStorePlain]: Start of recursive call 8: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:12,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-11-23 07:21:12,318 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 07:21:12,318 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,322 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 07:21:12,325 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 07:21:12,325 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,330 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,342 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 7 variables, input treesize:55, output treesize:11 [2018-11-23 07:21:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-23 07:21:12,353 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:21:12,354 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:12,356 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:12,359 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:12,359 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:26 [2018-11-23 07:21:12,379 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:21:12,380 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:21:12,380 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,381 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,382 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,382 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:5 [2018-11-23 07:21:12,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-23 07:21:12,404 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:21:12,404 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,405 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,406 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:12,406 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-23 07:21:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-23 07:21:12,426 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:21:12,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2018-11-23 07:21:12,426 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:21:12,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 07:21:12,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 07:21:12,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2018-11-23 07:21:12,427 INFO L87 Difference]: Start difference. First operand 127 states and 159 transitions. Second operand 15 states. [2018-11-23 07:21:12,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:21:12,810 INFO L93 Difference]: Finished difference Result 566 states and 672 transitions. [2018-11-23 07:21:12,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-23 07:21:12,810 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 39 [2018-11-23 07:21:12,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:21:12,811 INFO L225 Difference]: With dead ends: 566 [2018-11-23 07:21:12,811 INFO L226 Difference]: Without dead ends: 474 [2018-11-23 07:21:12,812 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=217, Invalid=653, Unknown=0, NotChecked=0, Total=870 [2018-11-23 07:21:12,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2018-11-23 07:21:12,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 205. [2018-11-23 07:21:12,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-11-23 07:21:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2018-11-23 07:21:12,847 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 39 [2018-11-23 07:21:12,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:21:12,847 INFO L480 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2018-11-23 07:21:12,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 07:21:12,847 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2018-11-23 07:21:12,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 07:21:12,848 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:21:12,848 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:21:12,848 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:21:12,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:21:12,848 INFO L82 PathProgramCache]: Analyzing trace with hash -80009571, now seen corresponding path program 4 times [2018-11-23 07:21:12,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:21:12,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:12,849 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:21:12,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:12,850 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:21:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:21:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:13,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:13,215 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:21:13,215 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:21:13,215 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:21:13,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:13,215 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:21:13,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:21:13,225 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:21:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:21:13,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:21:13,245 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:21:13,245 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,249 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,249 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:21:13,257 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:13,258 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:13,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:21:13,258 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:21:13,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:13,280 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,282 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,294 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:21:13,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:13,296 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,297 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,311 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 07:21:13,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:21:13,315 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:13,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:13,316 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,319 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,323 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,330 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:68, output treesize:43 [2018-11-23 07:21:13,353 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:13,355 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:13,356 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:13,356 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:21:13,357 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,405 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 50 [2018-11-23 07:21:13,408 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:21:13,408 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,419 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,459 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 42 [2018-11-23 07:21:13,461 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:13,462 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,475 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,496 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:13,500 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:13,521 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2018-11-23 07:21:13,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:21:13,526 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:13,527 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:21:13,528 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,535 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,542 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 07:21:13,562 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:21:13,564 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:13,565 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:13,565 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,568 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,572 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,585 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,585 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 9 variables, input treesize:134, output treesize:87 [2018-11-23 07:21:13,723 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 92 [2018-11-23 07:21:13,725 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 28 [2018-11-23 07:21:13,725 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,734 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-23 07:21:13,734 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:13,741 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:13,755 INFO L478 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 23 treesize of output 19 [2018-11-23 07:21:13,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:21:13,757 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:13,761 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:21:13,761 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,763 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,769 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:13,769 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:128, output treesize:34 [2018-11-23 07:21:13,796 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 07:21:13,797 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-23 07:21:13,798 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,802 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:13,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-11-23 07:21:13,802 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,804 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,808 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:13,808 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:38, output treesize:5 [2018-11-23 07:21:13,814 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:13,814 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:21:14,012 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,016 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,035 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,039 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,051 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,056 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,066 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 12 dim-0 vars, and 2 xjuncts. [2018-11-23 07:21:14,066 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:120, output treesize:191 [2018-11-23 07:21:14,321 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 135 [2018-11-23 07:21:14,322 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,334 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,335 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,345 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,345 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,358 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:14,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 164 [2018-11-23 07:21:14,548 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:14,548 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,562 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:21:14,565 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:21:14,565 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,567 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,578 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,581 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 169 [2018-11-23 07:21:14,623 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:14,623 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,636 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 95 [2018-11-23 07:21:14,640 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 85 [2018-11-23 07:21:14,640 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,654 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,666 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,670 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 241 [2018-11-23 07:21:14,711 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:14,711 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,743 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 90 [2018-11-23 07:21:14,745 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 81 [2018-11-23 07:21:14,746 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,749 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,760 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,870 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 154 [2018-11-23 07:21:14,908 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:14,909 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,924 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 69 [2018-11-23 07:21:14,927 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 59 [2018-11-23 07:21:14,927 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,932 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,945 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:14,948 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 149 [2018-11-23 07:21:14,993 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:14,993 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,011 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:21:15,013 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:21:15,013 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,016 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,028 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,138 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 110 [2018-11-23 07:21:15,170 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:15,170 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,185 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2018-11-23 07:21:15,187 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2018-11-23 07:21:15,187 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,190 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,201 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,205 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 119 [2018-11-23 07:21:15,239 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:15,239 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,254 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2018-11-23 07:21:15,257 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2018-11-23 07:21:15,257 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,259 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,271 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,370 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 134 [2018-11-23 07:21:15,394 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:15,395 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,405 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 68 [2018-11-23 07:21:15,407 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 59 [2018-11-23 07:21:15,407 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,410 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,418 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,421 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 125 [2018-11-23 07:21:15,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:15,444 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,455 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2018-11-23 07:21:15,457 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 51 [2018-11-23 07:21:15,457 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,459 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,468 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,471 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 195 [2018-11-23 07:21:15,510 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:15,510 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 121 [2018-11-23 07:21:15,525 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 111 [2018-11-23 07:21:15,525 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,531 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,539 INFO L267 ElimStorePlain]: Start of recursive call 44: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:15,611 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:15,621 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:15,622 INFO L267 ElimStorePlain]: Start of recursive call 51: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:15,631 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:15,695 INFO L267 ElimStorePlain]: Start of recursive call 1: 18 dim-0 vars, 6 dim-2 vars, End of recursive call: 38 dim-0 vars, and 5 xjuncts. [2018-11-23 07:21:15,695 INFO L202 ElimStorePlain]: Needed 51 recursive calls to eliminate 24 variables, input treesize:315, output treesize:583 [2018-11-23 07:21:18,547 WARN L180 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2018-11-23 07:21:22,661 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 75 [2018-11-23 07:21:22,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 77 [2018-11-23 07:21:22,758 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 68 [2018-11-23 07:21:22,758 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:22,781 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,788 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 78 [2018-11-23 07:21:22,861 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,873 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,873 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 43 [2018-11-23 07:21:22,873 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:22,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2018-11-23 07:21:22,875 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:22,881 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,882 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 43 [2018-11-23 07:21:22,882 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:22,924 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,925 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,926 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2018-11-23 07:21:22,926 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:22,929 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,930 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,930 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,931 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,931 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,931 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,932 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 64 [2018-11-23 07:21:22,932 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:22,955 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:22,977 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 49 [2018-11-23 07:21:22,990 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,990 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,991 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:21:22,991 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:22,993 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,993 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:22,993 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2018-11-23 07:21:22,993 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:22,995 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2018-11-23 07:21:22,995 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,011 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:23,034 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:23,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 80 [2018-11-23 07:21:23,094 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2018-11-23 07:21:23,094 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,140 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,141 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,141 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 69 [2018-11-23 07:21:23,141 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2018-11-23 07:21:23,185 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,257 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,259 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,260 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,262 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,275 INFO L478 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 104 [2018-11-23 07:21:23,351 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,352 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2018-11-23 07:21:23,353 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,387 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,387 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,388 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,388 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,389 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,392 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,392 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 62 [2018-11-23 07:21:23,392 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,425 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,425 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,426 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2018-11-23 07:21:23,426 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,443 INFO L267 ElimStorePlain]: Start of recursive call 18: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,473 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 65 [2018-11-23 07:21:23,519 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,520 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,520 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-11-23 07:21:23,520 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-11-23 07:21:23,538 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,546 INFO L267 ElimStorePlain]: Start of recursive call 22: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,583 INFO L267 ElimStorePlain]: Start of recursive call 14: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:23,586 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,594 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 89 [2018-11-23 07:21:23,603 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 92 [2018-11-23 07:21:23,665 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,667 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,674 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 96 [2018-11-23 07:21:23,675 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:23,677 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,679 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,686 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 108 [2018-11-23 07:21:23,687 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:23,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 75 [2018-11-23 07:21:23,694 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:23,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2018-11-23 07:21:23,775 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:23,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2018-11-23 07:21:23,776 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,824 INFO L267 ElimStorePlain]: Start of recursive call 26: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:23,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 72 [2018-11-23 07:21:23,893 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:23,964 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:23,978 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 104 [2018-11-23 07:21:24,140 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2018-11-23 07:21:24,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 60 [2018-11-23 07:21:24,143 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,150 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 75 [2018-11-23 07:21:24,150 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:24,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 71 [2018-11-23 07:21:24,157 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:24,306 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,306 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,307 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 51 [2018-11-23 07:21:24,307 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,309 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,309 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,309 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2018-11-23 07:21:24,310 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,311 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,312 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,312 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2018-11-23 07:21:24,312 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,428 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2018-11-23 07:21:24,429 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,430 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2018-11-23 07:21:24,430 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,540 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,541 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,541 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 65 [2018-11-23 07:21:24,541 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,543 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,543 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,544 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 62 [2018-11-23 07:21:24,544 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,650 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-11-23 07:21:24,651 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,656 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 46 [2018-11-23 07:21:24,656 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:24,737 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,739 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,746 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 76 [2018-11-23 07:21:24,746 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:24,752 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 55 [2018-11-23 07:21:24,753 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:24,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 51 [2018-11-23 07:21:24,839 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,841 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2018-11-23 07:21:24,841 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:24,914 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 48 [2018-11-23 07:21:24,914 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:24,917 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,919 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:24,926 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 69 [2018-11-23 07:21:24,926 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:24,969 INFO L267 ElimStorePlain]: Start of recursive call 33: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:25,025 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 58 [2018-11-23 07:21:25,034 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 17 [2018-11-23 07:21:25,034 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:25,041 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:25,135 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 46 [2018-11-23 07:21:25,152 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2018-11-23 07:21:25,152 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:25,158 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 6 [2018-11-23 07:21:25,158 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:25,170 INFO L267 ElimStorePlain]: Start of recursive call 54: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:25,224 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:25,231 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 87 [2018-11-23 07:21:25,274 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:25,274 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:25,274 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 55 [2018-11-23 07:21:25,275 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:25,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2018-11-23 07:21:25,296 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:25,307 INFO L267 ElimStorePlain]: Start of recursive call 57: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:25,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 43 [2018-11-23 07:21:25,368 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2018-11-23 07:21:25,369 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:25,370 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 6 [2018-11-23 07:21:25,370 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:25,382 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:25,423 INFO L267 ElimStorePlain]: Start of recursive call 25: 8 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 07:21:25,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 13 dim-0 vars, 2 dim-2 vars, End of recursive call: 11 dim-0 vars, and 9 xjuncts. [2018-11-23 07:21:25,497 INFO L202 ElimStorePlain]: Needed 62 recursive calls to eliminate 17 variables, input treesize:225, output treesize:192 [2018-11-23 07:21:25,604 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:25,621 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:21:25,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 35 [2018-11-23 07:21:25,621 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:21:25,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-23 07:21:25,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-23 07:21:25,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1077, Unknown=1, NotChecked=0, Total=1190 [2018-11-23 07:21:25,622 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand 24 states. [2018-11-23 07:21:27,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:21:27,096 INFO L93 Difference]: Finished difference Result 354 states and 434 transitions. [2018-11-23 07:21:27,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 07:21:27,097 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 39 [2018-11-23 07:21:27,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:21:27,098 INFO L225 Difference]: With dead ends: 354 [2018-11-23 07:21:27,098 INFO L226 Difference]: Without dead ends: 352 [2018-11-23 07:21:27,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 63 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=395, Invalid=2154, Unknown=1, NotChecked=0, Total=2550 [2018-11-23 07:21:27,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-11-23 07:21:27,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 181. [2018-11-23 07:21:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-23 07:21:27,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 235 transitions. [2018-11-23 07:21:27,140 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 235 transitions. Word has length 39 [2018-11-23 07:21:27,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:21:27,140 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 235 transitions. [2018-11-23 07:21:27,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-23 07:21:27,141 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 235 transitions. [2018-11-23 07:21:27,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 07:21:27,141 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:21:27,141 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:21:27,141 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:21:27,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:21:27,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1768953313, now seen corresponding path program 1 times [2018-11-23 07:21:27,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:21:27,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:27,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:21:27,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:27,142 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:21:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:21:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:27,396 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:27,396 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:21:27,396 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-11-23 07:21:27,397 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [18], [20], [22], [27], [32], [41], [48], [50], [53], [54], [57], [59], [64], [65], [66] [2018-11-23 07:21:27,397 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 07:21:27,397 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 07:21:27,423 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 07:21:27,423 INFO L272 AbstractInterpreter]: Visited 21 different actions 35 times. Merged at 12 different actions 12 times. Never widened. Performed 261 root evaluator evaluations with a maximum evaluation depth of 3. Performed 261 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 33 variables. [2018-11-23 07:21:27,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:21:27,427 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 07:21:27,427 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:27,427 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:21:27,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:21:27,443 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:21:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:21:27,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:21:27,492 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:21:27,492 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,500 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,501 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:21:27,513 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:27,514 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:27,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:21:27,515 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,535 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:21:27,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:27,537 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,540 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,559 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 07:21:27,561 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:21:27,564 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:27,565 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:27,566 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,569 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,573 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,585 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:21:27,587 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:27,587 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,589 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,598 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,598 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:68, output treesize:43 [2018-11-23 07:21:27,626 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:27,632 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:27,634 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:27,634 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:21:27,635 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,668 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:27,672 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:27,698 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:27,702 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:27,731 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 07:21:27,733 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:21:27,736 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:27,738 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:27,738 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,743 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,750 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-11-23 07:21:27,779 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:21:27,782 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:27,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:21:27,785 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,791 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,802 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,823 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2018-11-23 07:21:27,827 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:21:27,831 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:27,834 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:21:27,834 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,840 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,846 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,859 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,859 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 9 variables, input treesize:128, output treesize:81 [2018-11-23 07:21:27,927 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 84 [2018-11-23 07:21:27,928 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 20 [2018-11-23 07:21:27,929 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,937 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-23 07:21:27,937 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:27,944 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:27,953 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:21:27,955 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 07:21:27,955 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,959 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,964 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,965 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:111, output treesize:13 [2018-11-23 07:21:27,977 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:21:27,978 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 07:21:27,979 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,981 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:27,981 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:21:27,991 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:27,991 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:21:28,142 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,151 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,152 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,159 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,160 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,166 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,167 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,174 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,228 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,235 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,236 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,243 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,244 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:28,249 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:28,250 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,256 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,299 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,305 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,306 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,311 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,311 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,317 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:28,318 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:28,322 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:28,375 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 20 dim-0 vars, and 4 xjuncts. [2018-11-23 07:21:28,375 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 6 variables, input treesize:103, output treesize:234 [2018-11-23 07:21:36,508 WARN L180 SmtUtils]: Spent 8.05 s on a formula simplification. DAG size of input: 120 DAG size of output: 46 [2018-11-23 07:21:36,537 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:36,544 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:36,545 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:36,552 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:36,553 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:36,559 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:36,592 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 90 [2018-11-23 07:21:36,611 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:36,611 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,624 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:21:36,626 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:21:36,627 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,629 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,635 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,638 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 140 [2018-11-23 07:21:36,663 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:36,663 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,678 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2018-11-23 07:21:36,681 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 54 [2018-11-23 07:21:36,681 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,684 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,691 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,694 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 95 [2018-11-23 07:21:36,723 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:36,723 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,740 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 68 [2018-11-23 07:21:36,742 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 58 [2018-11-23 07:21:36,742 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,748 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,754 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,784 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 60 [2018-11-23 07:21:36,803 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:36,803 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,814 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-11-23 07:21:36,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2018-11-23 07:21:36,816 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,819 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,823 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,827 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 94 [2018-11-23 07:21:36,855 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:36,856 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,872 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 67 [2018-11-23 07:21:36,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 57 [2018-11-23 07:21:36,875 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,881 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,886 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,888 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2018-11-23 07:21:36,904 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:36,905 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2018-11-23 07:21:36,918 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-23 07:21:36,918 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,921 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,925 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:36,947 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 3 dim-2 vars, End of recursive call: 20 dim-0 vars, and 3 xjuncts. [2018-11-23 07:21:36,948 INFO L202 ElimStorePlain]: Needed 31 recursive calls to eliminate 12 variables, input treesize:124, output treesize:170 [2018-11-23 07:21:37,066 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2018-11-23 07:21:37,068 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:37,068 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,081 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,082 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,082 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-11-23 07:21:37,082 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,089 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:37,102 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 59 [2018-11-23 07:21:37,106 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,106 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,106 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2018-11-23 07:21:37,107 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-11-23 07:21:37,206 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,240 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,247 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,261 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 73 [2018-11-23 07:21:37,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:21:37,306 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,333 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:37,335 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,335 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,336 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2018-11-23 07:21:37,336 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,359 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,361 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,367 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 48 [2018-11-23 07:21:37,368 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:37,370 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,372 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,379 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 48 [2018-11-23 07:21:37,379 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:37,391 INFO L267 ElimStorePlain]: Start of recursive call 8: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,490 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 50 [2018-11-23 07:21:37,506 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-11-23 07:21:37,506 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,529 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,531 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,538 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 57 [2018-11-23 07:21:37,538 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:37,544 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 36 [2018-11-23 07:21:37,544 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:37,561 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:37,618 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,620 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,631 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2018-11-23 07:21:37,670 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,672 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,678 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 45 [2018-11-23 07:21:37,678 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:37,681 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,683 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,689 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 45 [2018-11-23 07:21:37,690 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:37,720 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 07:21:37,721 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,725 INFO L267 ElimStorePlain]: Start of recursive call 17: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,745 INFO L267 ElimStorePlain]: Start of recursive call 5: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:37,750 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 34 [2018-11-23 07:21:37,752 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2018-11-23 07:21:37,762 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 6 [2018-11-23 07:21:37,763 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2018-11-23 07:21:37,768 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:37,778 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:37,801 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-11-23 07:21:37,802 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,803 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-11-23 07:21:37,803 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,822 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 42 [2018-11-23 07:21:37,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:21:37,836 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:37,854 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,856 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:37,863 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2018-11-23 07:21:37,863 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:37,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2018-11-23 07:21:37,869 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:37,883 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:37,894 INFO L267 ElimStorePlain]: Start of recursive call 21: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:37,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-23 07:21:37,912 INFO L202 ElimStorePlain]: Needed 30 recursive calls to eliminate 6 variables, input treesize:49, output treesize:64 [2018-11-23 07:21:37,959 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:37,973 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:21:37,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 27 [2018-11-23 07:21:37,973 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:21:37,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-23 07:21:37,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-23 07:21:37,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2018-11-23 07:21:37,974 INFO L87 Difference]: Start difference. First operand 181 states and 235 transitions. Second operand 19 states. [2018-11-23 07:21:39,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:21:39,937 INFO L93 Difference]: Finished difference Result 268 states and 325 transitions. [2018-11-23 07:21:39,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-23 07:21:39,937 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 39 [2018-11-23 07:21:39,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:21:39,938 INFO L225 Difference]: With dead ends: 268 [2018-11-23 07:21:39,938 INFO L226 Difference]: Without dead ends: 266 [2018-11-23 07:21:39,939 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 67 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=620, Invalid=2350, Unknown=0, NotChecked=0, Total=2970 [2018-11-23 07:21:39,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-11-23 07:21:39,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 136. [2018-11-23 07:21:39,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-23 07:21:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 172 transitions. [2018-11-23 07:21:39,970 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 172 transitions. Word has length 39 [2018-11-23 07:21:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:21:39,970 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 172 transitions. [2018-11-23 07:21:39,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-23 07:21:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 172 transitions. [2018-11-23 07:21:39,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 07:21:39,971 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:21:39,971 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:21:39,971 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:21:39,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:21:39,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1995602019, now seen corresponding path program 5 times [2018-11-23 07:21:39,972 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:21:39,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:39,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:21:39,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:39,973 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:21:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:21:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:40,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:40,378 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:21:40,378 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:21:40,378 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:21:40,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:40,378 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:21:40,385 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:21:40,385 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 07:21:40,407 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 07:21:40,407 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:21:40,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:21:40,411 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:21:40,411 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,417 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,417 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:21:40,454 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,455 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,456 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:21:40,456 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,482 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-11-23 07:21:40,484 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:21:40,486 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,488 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:40,488 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,492 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,496 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,512 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:21:40,514 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:40,514 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,516 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,532 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:21:40,533 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:40,533 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,535 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,548 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,548 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:84, output treesize:59 [2018-11-23 07:21:40,638 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,639 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,640 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,641 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:21:40,641 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,675 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:40,678 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:40,710 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 07:21:40,712 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:21:40,712 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,717 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,741 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 07:21:40,743 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:40,743 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,748 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,773 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 60 [2018-11-23 07:21:40,775 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:21:40,777 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,778 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:40,778 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,782 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,789 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,804 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,806 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 63 [2018-11-23 07:21:40,808 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 25 [2018-11-23 07:21:40,810 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,812 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 31 [2018-11-23 07:21:40,812 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,817 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,824 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,836 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 8 variables, input treesize:140, output treesize:84 [2018-11-23 07:21:40,935 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,936 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:40,936 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 85 [2018-11-23 07:21:40,942 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 63 [2018-11-23 07:21:40,943 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-23 07:21:40,969 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 72 [2018-11-23 07:21:40,969 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:40,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2018-11-23 07:21:40,971 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:40,996 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 07:21:41,017 INFO L478 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 56 treesize of output 48 [2018-11-23 07:21:41,018 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-23 07:21:41,018 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,026 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:21:41,027 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,033 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,035 INFO L478 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 56 treesize of output 48 [2018-11-23 07:21:41,037 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-23 07:21:41,037 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,046 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:21:41,046 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,053 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,067 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 07:21:41,067 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:111, output treesize:53 [2018-11-23 07:21:41,108 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 07:21:41,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-23 07:21:41,109 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,113 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 07:21:41,113 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,115 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,117 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,117 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:30, output treesize:3 [2018-11-23 07:21:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:41,123 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:21:41,269 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,272 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,273 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,276 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,297 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,300 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:41,301 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,303 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,322 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,326 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,327 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,332 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,332 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,338 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,338 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,345 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:41,384 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 17 dim-0 vars, and 4 xjuncts. [2018-11-23 07:21:41,384 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 5 variables, input treesize:93, output treesize:216 [2018-11-23 07:21:42,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 80 [2018-11-23 07:21:42,293 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:42,293 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,301 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2018-11-23 07:21:42,303 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2018-11-23 07:21:42,303 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,308 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,317 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 114 [2018-11-23 07:21:42,325 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:42,325 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,334 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-11-23 07:21:42,336 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 43 [2018-11-23 07:21:42,336 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,338 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,344 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,347 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 75 [2018-11-23 07:21:42,354 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:42,354 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,363 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:21:42,365 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:21:42,365 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,367 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,373 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,395 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 40 [2018-11-23 07:21:42,400 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:42,400 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,407 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2018-11-23 07:21:42,409 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-11-23 07:21:42,409 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,411 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,415 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,418 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2018-11-23 07:21:42,424 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:42,425 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,431 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 07:21:42,433 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-23 07:21:42,433 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,435 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,439 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,453 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:42,460 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:42,461 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:42,467 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:42,485 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2018-11-23 07:21:42,485 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 10 variables, input treesize:124, output treesize:132 [2018-11-23 07:21:42,638 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 70 [2018-11-23 07:21:42,641 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:42,642 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:42,642 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2018-11-23 07:21:42,643 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56 [2018-11-23 07:21:42,680 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,714 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-11-23 07:21:42,715 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,748 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:42,750 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:42,750 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:42,761 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 54 treesize of output 89 [2018-11-23 07:21:42,825 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:42,826 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:42,827 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:42,827 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:42,832 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 58 [2018-11-23 07:21:42,832 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:42,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 38 [2018-11-23 07:21:42,871 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:42,881 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:42,954 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 68 [2018-11-23 07:21:42,981 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 47 [2018-11-23 07:21:42,981 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,000 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,020 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 07:21:43,021 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,035 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,040 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 69 [2018-11-23 07:21:43,042 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2018-11-23 07:21:43,043 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,063 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 46 [2018-11-23 07:21:43,076 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-11-23 07:21:43,076 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,078 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,078 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 07:21:43,079 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,080 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,081 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,081 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:21:43,081 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,094 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,124 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 66 [2018-11-23 07:21:43,152 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,152 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,153 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2018-11-23 07:21:43,153 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,154 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-11-23 07:21:43,155 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,156 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,157 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-11-23 07:21:43,157 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 44 [2018-11-23 07:21:43,203 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,204 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,205 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,206 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,206 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,211 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 61 [2018-11-23 07:21:43,211 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,234 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,256 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:43,270 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 98 [2018-11-23 07:21:43,274 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,275 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 86 [2018-11-23 07:21:43,305 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,305 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,306 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2018-11-23 07:21:43,306 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,308 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,308 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,309 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-23 07:21:43,309 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,325 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,440 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,440 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,442 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,442 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,449 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 108 [2018-11-23 07:21:43,513 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,514 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,515 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,515 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,520 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 63 [2018-11-23 07:21:43,520 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,522 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,523 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,524 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,524 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,529 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 63 [2018-11-23 07:21:43,530 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,575 INFO L267 ElimStorePlain]: Start of recursive call 28: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,690 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,690 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,691 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,692 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,699 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 108 [2018-11-23 07:21:43,763 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,763 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,763 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2018-11-23 07:21:43,764 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,765 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,765 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,766 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2018-11-23 07:21:43,766 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:43,808 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,808 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,810 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,811 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,815 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 63 [2018-11-23 07:21:43,816 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,817 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,818 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,819 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,819 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:43,824 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 63 [2018-11-23 07:21:43,825 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:43,849 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:44,133 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,133 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,134 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,135 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,144 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 105 [2018-11-23 07:21:44,202 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,202 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,203 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,204 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,208 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 60 [2018-11-23 07:21:44,209 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:44,210 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,211 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,212 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,212 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,217 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 60 [2018-11-23 07:21:44,217 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:44,257 INFO L267 ElimStorePlain]: Start of recursive call 36: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:44,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 79 [2018-11-23 07:21:44,324 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:44,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2018-11-23 07:21:44,388 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:44,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2018-11-23 07:21:44,390 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:44,540 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 73 [2018-11-23 07:21:44,540 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:44,634 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 68 [2018-11-23 07:21:44,665 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,665 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,665 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2018-11-23 07:21:44,666 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:44,667 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 37 [2018-11-23 07:21:44,668 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:44,669 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,670 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,670 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2018-11-23 07:21:44,671 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:44,720 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 46 [2018-11-23 07:21:44,721 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:44,722 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,723 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,724 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,724 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,728 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 63 [2018-11-23 07:21:44,729 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:44,753 INFO L267 ElimStorePlain]: Start of recursive call 43: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:44,785 INFO L267 ElimStorePlain]: Start of recursive call 24: 13 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:44,831 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:44,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 73 [2018-11-23 07:21:44,842 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 63 [2018-11-23 07:21:44,860 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2018-11-23 07:21:44,860 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:44,868 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:44,911 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 71 [2018-11-23 07:21:44,940 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 51 [2018-11-23 07:21:44,941 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:44,943 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-11-23 07:21:44,943 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:44,951 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 59 [2018-11-23 07:21:44,951 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:45,005 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:45,007 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:45,014 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 78 [2018-11-23 07:21:45,014 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:45,020 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 59 [2018-11-23 07:21:45,020 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:45,058 INFO L267 ElimStorePlain]: Start of recursive call 52: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:45,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 47 [2018-11-23 07:21:45,132 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-23 07:21:45,132 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,141 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-11-23 07:21:45,142 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:45,156 INFO L267 ElimStorePlain]: Start of recursive call 58: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:45,227 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 44 [2018-11-23 07:21:45,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:21:45,235 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,241 INFO L267 ElimStorePlain]: Start of recursive call 61: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 47 [2018-11-23 07:21:45,251 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:21:45,251 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,258 INFO L267 ElimStorePlain]: Start of recursive call 63: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,259 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 41 [2018-11-23 07:21:45,267 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:21:45,267 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,273 INFO L267 ElimStorePlain]: Start of recursive call 65: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,327 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-11-23 07:21:45,328 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 68 [2018-11-23 07:21:45,410 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 47 [2018-11-23 07:21:45,411 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:45,425 INFO L267 ElimStorePlain]: Start of recursive call 68: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,487 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 54 treesize of output 83 [2018-11-23 07:21:45,517 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:45,519 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:45,527 INFO L478 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 83 [2018-11-23 07:21:45,527 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:45,530 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:45,532 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:45,540 INFO L478 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 81 [2018-11-23 07:21:45,541 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 3 xjuncts. [2018-11-23 07:21:45,547 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 58 [2018-11-23 07:21:45,547 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:45,633 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:45,634 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2018-11-23 07:21:45,635 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,636 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:45,637 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2018-11-23 07:21:45,638 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,644 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 46 [2018-11-23 07:21:45,644 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:45,646 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:45,647 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2018-11-23 07:21:45,648 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,654 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 46 [2018-11-23 07:21:45,654 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:45,717 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-11-23 07:21:45,717 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,719 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 40 [2018-11-23 07:21:45,719 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,771 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-11-23 07:21:45,771 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 40 [2018-11-23 07:21:45,777 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:45,810 INFO L267 ElimStorePlain]: Start of recursive call 70: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:45,854 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 37 [2018-11-23 07:21:45,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-11-23 07:21:45,869 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 2 xjuncts. [2018-11-23 07:21:45,870 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-23 07:21:45,871 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:45,880 INFO L267 ElimStorePlain]: Start of recursive call 83: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:45,914 INFO L267 ElimStorePlain]: Start of recursive call 49: 8 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 07:21:45,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 2 dim-2 vars, End of recursive call: 13 dim-0 vars, and 10 xjuncts. [2018-11-23 07:21:45,978 INFO L202 ElimStorePlain]: Needed 85 recursive calls to eliminate 11 variables, input treesize:144, output treesize:271 [2018-11-23 07:21:46,191 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2018-11-23 07:21:46,201 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:46,216 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:21:46,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 12] total 36 [2018-11-23 07:21:46,216 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:21:46,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-11-23 07:21:46,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-11-23 07:21:46,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1146, Unknown=0, NotChecked=0, Total=1260 [2018-11-23 07:21:46,217 INFO L87 Difference]: Start difference. First operand 136 states and 172 transitions. Second operand 27 states. [2018-11-23 07:21:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:21:52,043 INFO L93 Difference]: Finished difference Result 549 states and 632 transitions. [2018-11-23 07:21:52,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-11-23 07:21:52,043 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 39 [2018-11-23 07:21:52,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:21:52,044 INFO L225 Difference]: With dead ends: 549 [2018-11-23 07:21:52,044 INFO L226 Difference]: Without dead ends: 547 [2018-11-23 07:21:52,046 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3411 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1821, Invalid=11289, Unknown=0, NotChecked=0, Total=13110 [2018-11-23 07:21:52,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2018-11-23 07:21:52,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 152. [2018-11-23 07:21:52,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-11-23 07:21:52,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 195 transitions. [2018-11-23 07:21:52,083 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 195 transitions. Word has length 39 [2018-11-23 07:21:52,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:21:52,083 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 195 transitions. [2018-11-23 07:21:52,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-11-23 07:21:52,083 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 195 transitions. [2018-11-23 07:21:52,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 07:21:52,084 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:21:52,084 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:21:52,084 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:21:52,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:21:52,084 INFO L82 PathProgramCache]: Analyzing trace with hash 116043549, now seen corresponding path program 6 times [2018-11-23 07:21:52,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:21:52,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:52,085 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:21:52,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:21:52,085 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:21:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:21:52,468 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:52,468 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:52,468 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:21:52,468 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:21:52,468 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:21:52,468 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:21:52,468 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:21:52,483 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 07:21:52,483 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-11-23 07:21:52,500 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 07:21:52,500 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:21:52,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:21:52,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:21:52,505 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,513 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-23 07:21:52,574 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,575 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:21:52,575 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,595 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:21:52,597 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:52,598 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,600 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,618 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-11-23 07:21:52,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:21:52,622 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,623 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:52,624 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,627 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,631 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,645 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:21:52,646 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:21:52,646 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,648 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,659 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,659 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:75, output treesize:50 [2018-11-23 07:21:52,761 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,762 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,764 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,766 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,766 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:21:52,766 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,804 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:52,808 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:52,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 46 [2018-11-23 07:21:52,843 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:21:52,843 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,849 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-23 07:21:52,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:21:52,881 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:21:52,882 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,888 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,894 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,914 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,916 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,921 INFO L478 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 45 treesize of output 74 [2018-11-23 07:21:52,923 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:21:52,925 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,927 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:21:52,927 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,931 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,939 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,957 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:52,958 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 47 [2018-11-23 07:21:52,960 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-23 07:21:52,960 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,967 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,981 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:52,981 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 8 variables, input treesize:140, output treesize:76 [2018-11-23 07:21:53,186 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:53,187 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:53,188 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 79 [2018-11-23 07:21:53,195 INFO L478 Elim1Store]: Elim1 applied some 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 2 case distinctions, treesize of input 31 treesize of output 41 [2018-11-23 07:21:53,195 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 07:21:53,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 45 [2018-11-23 07:21:53,207 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,212 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,220 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:53,221 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2018-11-23 07:21:53,222 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-23 07:21:53,222 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:53,227 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:21:53,227 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:53,228 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:53,234 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,234 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:98, output treesize:37 [2018-11-23 07:21:53,269 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:53,269 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:53,270 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:53,271 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:53,271 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:53,272 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:21:53,272 INFO L478 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 41 treesize of output 53 [2018-11-23 07:21:53,286 INFO L478 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 47 [2018-11-23 07:21:53,290 INFO L267 ElimStorePlain]: Start of recursive call 3: 36 dim-0 vars, End of recursive call: 36 dim-0 vars, and 21 xjuncts. [2018-11-23 07:21:53,323 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:21:53,324 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:53,329 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:21:53,330 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:53,333 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:53,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:53,337 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:41, output treesize:5 [2018-11-23 07:21:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:21:53,365 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:21:53,603 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,605 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,618 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,623 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,634 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,637 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,646 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 10 dim-0 vars, and 2 xjuncts. [2018-11-23 07:21:53,646 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:106, output treesize:163 [2018-11-23 07:21:53,953 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,962 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,964 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,974 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,975 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:53,983 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:21:54,026 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 154 [2018-11-23 07:21:54,037 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:54,037 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,048 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2018-11-23 07:21:54,050 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2018-11-23 07:21:54,050 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,053 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,060 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,064 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 175 [2018-11-23 07:21:54,076 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:54,077 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 80 [2018-11-23 07:21:54,090 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 71 [2018-11-23 07:21:54,090 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,093 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,102 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,105 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 205 [2018-11-23 07:21:54,122 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:54,122 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,140 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 131 [2018-11-23 07:21:54,143 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 121 [2018-11-23 07:21:54,143 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,151 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,161 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 131 [2018-11-23 07:21:54,211 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:54,211 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,221 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2018-11-23 07:21:54,222 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2018-11-23 07:21:54,223 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,227 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,234 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,238 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 165 [2018-11-23 07:21:54,249 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:54,249 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,259 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-11-23 07:21:54,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 43 [2018-11-23 07:21:54,262 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,264 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,271 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,274 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 126 [2018-11-23 07:21:54,283 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:21:54,283 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,293 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:21:54,295 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:21:54,295 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,297 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,303 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,331 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 3 dim-2 vars, End of recursive call: 17 dim-0 vars, and 3 xjuncts. [2018-11-23 07:21:54,331 INFO L202 ElimStorePlain]: Needed 31 recursive calls to eliminate 10 variables, input treesize:154, output treesize:389 [2018-11-23 07:21:54,886 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 85 [2018-11-23 07:21:54,889 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 71 [2018-11-23 07:21:54,889 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,927 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 55 [2018-11-23 07:21:54,940 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:54,940 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:54,941 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-11-23 07:21:54,941 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2018-11-23 07:21:54,943 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:54,955 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:54,996 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 69 [2018-11-23 07:21:55,005 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 29 [2018-11-23 07:21:55,005 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,012 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,051 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,057 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 83 [2018-11-23 07:21:55,090 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2018-11-23 07:21:55,090 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,107 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,107 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,107 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2018-11-23 07:21:55,107 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,118 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,148 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 37 [2018-11-23 07:21:55,155 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:21:55,156 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,162 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,189 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 36 [2018-11-23 07:21:55,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-11-23 07:21:55,200 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,201 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,201 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:21:55,202 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,213 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:55,243 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,249 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 61 [2018-11-23 07:21:55,289 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,290 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,290 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,290 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,291 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,291 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,291 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 51 [2018-11-23 07:21:55,292 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,294 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,294 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,294 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,295 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,295 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,295 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,296 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 51 [2018-11-23 07:21:55,296 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,298 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,298 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,299 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2018-11-23 07:21:55,299 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,340 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-23 07:21:55,340 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,342 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,343 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,343 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2018-11-23 07:21:55,343 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,364 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:55,402 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:55,406 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,422 INFO L478 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 95 treesize of output 117 [2018-11-23 07:21:55,428 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,429 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,429 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 103 [2018-11-23 07:21:55,461 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,461 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2018-11-23 07:21:55,462 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,474 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:55,739 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 96 [2018-11-23 07:21:55,791 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2018-11-23 07:21:55,792 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,812 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,812 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:55,813 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2018-11-23 07:21:55,813 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:55,826 INFO L267 ElimStorePlain]: Start of recursive call 26: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,076 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,076 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,076 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,086 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 85 treesize of output 114 [2018-11-23 07:21:56,158 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,158 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,158 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 55 [2018-11-23 07:21:56,159 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,161 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2018-11-23 07:21:56,161 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,163 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,163 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2018-11-23 07:21:56,164 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,229 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,229 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,229 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 65 [2018-11-23 07:21:56,230 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,232 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,232 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,233 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,233 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,252 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,252 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,253 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 86 [2018-11-23 07:21:56,253 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,314 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2018-11-23 07:21:56,314 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2018-11-23 07:21:56,316 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,361 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,362 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,362 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 51 [2018-11-23 07:21:56,362 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,364 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,364 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:56,365 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 45 [2018-11-23 07:21:56,365 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,390 INFO L267 ElimStorePlain]: Start of recursive call 29: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:56,631 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2018-11-23 07:21:56,631 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,633 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2018-11-23 07:21:56,634 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 36 [2018-11-23 07:21:56,848 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:21:56,848 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,855 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,856 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 41 [2018-11-23 07:21:56,864 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2018-11-23 07:21:56,865 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:56,871 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,066 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 82 [2018-11-23 07:21:57,077 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2018-11-23 07:21:57,077 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,085 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,296 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,296 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,298 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,298 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,298 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,306 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 122 [2018-11-23 07:21:57,360 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,361 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,361 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2018-11-23 07:21:57,361 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,363 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,363 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,364 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2018-11-23 07:21:57,364 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,405 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,405 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,406 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,406 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,406 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,407 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,407 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 69 [2018-11-23 07:21:57,407 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,409 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,410 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,410 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,410 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,411 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,411 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,411 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 77 [2018-11-23 07:21:57,412 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,448 INFO L267 ElimStorePlain]: Start of recursive call 47: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:21:57,664 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 45 [2018-11-23 07:21:57,672 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2018-11-23 07:21:57,672 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,679 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 40 [2018-11-23 07:21:57,688 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:21:57,689 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,695 INFO L267 ElimStorePlain]: Start of recursive call 54: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,896 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,896 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,897 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,898 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,898 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,905 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 122 [2018-11-23 07:21:57,960 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,961 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,961 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2018-11-23 07:21:57,962 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:57,963 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,964 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:57,964 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2018-11-23 07:21:57,964 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,004 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,005 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,005 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,006 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,006 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,006 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,007 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 77 [2018-11-23 07:21:58,007 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,009 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,009 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,009 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,010 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,010 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,010 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,011 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 69 [2018-11-23 07:21:58,011 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,043 INFO L267 ElimStorePlain]: Start of recursive call 56: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:58,245 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,246 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,248 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,248 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,248 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,249 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,249 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,249 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 82 treesize of output 144 [2018-11-23 07:21:58,336 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,337 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,337 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2018-11-23 07:21:58,337 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,339 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,340 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,340 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 48 [2018-11-23 07:21:58,340 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,342 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,342 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,343 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 45 [2018-11-23 07:21:58,343 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,399 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,399 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,400 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2018-11-23 07:21:58,400 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,401 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-11-23 07:21:58,402 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,445 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,445 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 62 [2018-11-23 07:21:58,446 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,448 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,448 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,449 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,449 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,449 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,450 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,450 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 83 [2018-11-23 07:21:58,450 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,493 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,494 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,494 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,495 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,495 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,495 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,496 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 50 [2018-11-23 07:21:58,496 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,498 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,498 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,499 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,499 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,499 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,500 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:58,500 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2018-11-23 07:21:58,500 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:58,527 INFO L267 ElimStorePlain]: Start of recursive call 61: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:21:58,763 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-11-23 07:21:58,763 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:59,012 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 37 [2018-11-23 07:21:59,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:21:59,019 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:59,025 INFO L267 ElimStorePlain]: Start of recursive call 72: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:59,413 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,415 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,417 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,417 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,417 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,424 INFO L478 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 116 [2018-11-23 07:21:59,467 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,468 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,468 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,469 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,469 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,469 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,469 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 63 [2018-11-23 07:21:59,470 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:59,472 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,472 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,473 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,473 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,473 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,474 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,474 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 71 [2018-11-23 07:21:59,475 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:59,511 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,511 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,511 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-11-23 07:21:59,512 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:59,513 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,514 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:21:59,514 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2018-11-23 07:21:59,514 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:59,534 INFO L267 ElimStorePlain]: Start of recursive call 74: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:21:59,652 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2018-11-23 07:21:59,663 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-11-23 07:21:59,663 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:59,670 INFO L267 ElimStorePlain]: Start of recursive call 79: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:21:59,671 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2018-11-23 07:21:59,685 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2018-11-23 07:21:59,685 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-11-23 07:21:59,690 INFO L267 ElimStorePlain]: Start of recursive call 81: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,126 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 84 [2018-11-23 07:22:00,126 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,195 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,203 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 85 [2018-11-23 07:22:00,248 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,251 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,252 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2018-11-23 07:22:00,252 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 38 [2018-11-23 07:22:00,280 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,292 INFO L267 ElimStorePlain]: Start of recursive call 84: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,340 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 38 [2018-11-23 07:22:00,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-11-23 07:22:00,352 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,353 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,354 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,354 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:22:00,354 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,366 INFO L267 ElimStorePlain]: Start of recursive call 87: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:22:00,413 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,413 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,414 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 56 [2018-11-23 07:22:00,434 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,434 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,434 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:22:00,435 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,442 INFO L267 ElimStorePlain]: Start of recursive call 90: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:22:00,507 INFO L267 ElimStorePlain]: Start of recursive call 23: 34 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 07:22:00,510 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,522 INFO L478 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 89 [2018-11-23 07:22:00,525 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 71 [2018-11-23 07:22:00,536 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2018-11-23 07:22:00,536 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,545 INFO L267 ElimStorePlain]: Start of recursive call 93: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,623 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 62 [2018-11-23 07:22:00,632 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2018-11-23 07:22:00,632 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,638 INFO L267 ElimStorePlain]: Start of recursive call 95: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,703 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2018-11-23 07:22:00,703 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,765 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,767 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,767 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,768 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,778 INFO L478 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 84 [2018-11-23 07:22:00,833 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,833 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,834 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-23 07:22:00,834 INFO L267 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,856 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,856 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,857 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,857 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,858 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,858 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,858 INFO L478 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2018-11-23 07:22:00,859 INFO L267 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,878 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,879 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-11-23 07:22:00,879 INFO L267 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,888 INFO L267 ElimStorePlain]: Start of recursive call 98: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,941 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2018-11-23 07:22:00,942 INFO L267 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:00,991 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:00,996 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 49 [2018-11-23 07:22:01,026 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2018-11-23 07:22:01,026 INFO L267 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,041 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,042 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,042 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-11-23 07:22:01,042 INFO L267 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,052 INFO L267 ElimStorePlain]: Start of recursive call 103: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2018-11-23 07:22:01,210 INFO L267 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,272 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 62 [2018-11-23 07:22:01,281 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2018-11-23 07:22:01,281 INFO L267 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,288 INFO L267 ElimStorePlain]: Start of recursive call 107: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,310 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,315 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 60 [2018-11-23 07:22:01,346 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-11-23 07:22:01,347 INFO L267 ElimStorePlain]: Start of recursive call 110: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,363 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,364 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,364 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2018-11-23 07:22:01,364 INFO L267 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,374 INFO L267 ElimStorePlain]: Start of recursive call 109: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,414 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,414 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,414 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,431 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 83 [2018-11-23 07:22:01,468 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,468 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,469 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2018-11-23 07:22:01,469 INFO L267 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,487 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,487 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:22:01,487 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-23 07:22:01,488 INFO L267 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2018-11-23 07:22:01,501 INFO L267 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,512 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-11-23 07:22:01,513 INFO L267 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,519 INFO L267 ElimStorePlain]: Start of recursive call 112: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:01,536 INFO L267 ElimStorePlain]: Start of recursive call 92: 20 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:22:01,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 9 dim-0 vars, and 5 xjuncts. [2018-11-23 07:22:01,570 INFO L202 ElimStorePlain]: Needed 116 recursive calls to eliminate 7 variables, input treesize:119, output treesize:148 [2018-11-23 07:22:01,717 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:22:01,732 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 07:22:01,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 15] total 45 [2018-11-23 07:22:01,732 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 07:22:01,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-11-23 07:22:01,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-11-23 07:22:01,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1827, Unknown=0, NotChecked=0, Total=1980 [2018-11-23 07:22:01,733 INFO L87 Difference]: Start difference. First operand 152 states and 195 transitions. Second operand 32 states. [2018-11-23 07:22:08,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:22:08,006 INFO L93 Difference]: Finished difference Result 549 states and 629 transitions. [2018-11-23 07:22:08,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-11-23 07:22:08,006 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 39 [2018-11-23 07:22:08,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:22:08,007 INFO L225 Difference]: With dead ends: 549 [2018-11-23 07:22:08,007 INFO L226 Difference]: Without dead ends: 547 [2018-11-23 07:22:08,007 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3223 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1861, Invalid=11945, Unknown=0, NotChecked=0, Total=13806 [2018-11-23 07:22:08,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2018-11-23 07:22:08,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 144. [2018-11-23 07:22:08,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-11-23 07:22:08,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2018-11-23 07:22:08,046 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 182 transitions. Word has length 39 [2018-11-23 07:22:08,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:22:08,047 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 182 transitions. [2018-11-23 07:22:08,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-11-23 07:22:08,047 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 182 transitions. [2018-11-23 07:22:08,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 07:22:08,047 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:22:08,047 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:22:08,047 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:22:08,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:22:08,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1294002145, now seen corresponding path program 7 times [2018-11-23 07:22:08,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:22:08,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:22:08,048 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:22:08,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:22:08,048 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:22:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:22:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-23 07:22:08,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:22:08,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 07:22:08,106 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:22:08,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:22:08,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:22:08,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:22:08,106 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. Second operand 6 states. [2018-11-23 07:22:08,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:22:08,159 INFO L93 Difference]: Finished difference Result 227 states and 283 transitions. [2018-11-23 07:22:08,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:22:08,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-11-23 07:22:08,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:22:08,160 INFO L225 Difference]: With dead ends: 227 [2018-11-23 07:22:08,160 INFO L226 Difference]: Without dead ends: 137 [2018-11-23 07:22:08,160 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-23 07:22:08,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-11-23 07:22:08,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-11-23 07:22:08,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-23 07:22:08,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 172 transitions. [2018-11-23 07:22:08,189 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 172 transitions. Word has length 39 [2018-11-23 07:22:08,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:22:08,189 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 172 transitions. [2018-11-23 07:22:08,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:22:08,189 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 172 transitions. [2018-11-23 07:22:08,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 07:22:08,189 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:22:08,189 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:22:08,189 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:22:08,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:22:08,189 INFO L82 PathProgramCache]: Analyzing trace with hash 223712078, now seen corresponding path program 4 times [2018-11-23 07:22:08,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:22:08,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:22:08,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:22:08,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:22:08,190 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:22:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:22:08,400 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:22:08,401 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:22:08,401 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 07:22:08,401 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 07:22:08,401 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 07:22:08,401 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:22:08,401 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:22:08,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:22:08,407 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 07:22:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:22:08,428 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:22:08,431 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:22:08,431 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,439 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:22:08,440 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:22:08,440 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,441 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,447 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:22:08,448 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:22:08,448 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,449 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,453 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,453 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:29, output treesize:20 [2018-11-23 07:22:08,470 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:08,471 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:08,471 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:22:08,471 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,491 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:08,494 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:08,512 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 07:22:08,514 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:22:08,514 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,517 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,531 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-23 07:22:08,533 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:22:08,535 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:08,536 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:22:08,536 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,541 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,546 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,558 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 07:22:08,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:22:08,560 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,564 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,573 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:91, output treesize:53 [2018-11-23 07:22:08,598 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:08,600 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:08,601 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:08,601 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:22:08,602 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,624 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:08,627 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:08,644 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:08,646 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:08,664 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 67 [2018-11-23 07:22:08,666 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:22:08,669 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:08,670 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:22:08,670 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,675 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,684 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,701 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 72 [2018-11-23 07:22:08,702 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-23 07:22:08,704 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:08,706 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 07:22:08,706 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,710 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,717 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,727 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,727 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 7 variables, input treesize:118, output treesize:107 [2018-11-23 07:22:08,830 INFO L478 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 169 treesize of output 119 [2018-11-23 07:22:08,831 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 83 [2018-11-23 07:22:08,832 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:08,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2018-11-23 07:22:08,841 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:08,849 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 3 [2018-11-23 07:22:08,849 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,855 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:08,863 INFO L478 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 31 treesize of output 31 [2018-11-23 07:22:08,864 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:22:08,865 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:08,872 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:22:08,872 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,873 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:08,878 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:169, output treesize:7 [2018-11-23 07:22:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:22:08,892 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:22:09,039 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,046 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,047 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,056 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,057 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,066 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,066 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,075 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,196 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,201 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,202 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,208 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,209 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,220 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,221 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,227 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,358 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,365 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,366 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,374 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,375 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,383 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,488 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,494 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,495 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,501 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,502 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,507 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:09,582 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 28 dim-0 vars, and 7 xjuncts. [2018-11-23 07:22:09,583 INFO L202 ElimStorePlain]: Needed 29 recursive calls to eliminate 8 variables, input treesize:173, output treesize:478 [2018-11-23 07:22:51,863 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-23 07:22:52,064 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:22:52,065 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:191) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:354) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 46 more [2018-11-23 07:22:52,068 INFO L168 Benchmark]: Toolchain (without parser) took 180705.80 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 269.0 MB). Free memory was 956.6 MB in the beginning and 828.0 MB in the end (delta: 128.6 MB). Peak memory consumption was 397.5 MB. Max. memory is 11.5 GB. [2018-11-23 07:22:52,069 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:22:52,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2018-11-23 07:22:52,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.63 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:22:52,069 INFO L168 Benchmark]: Boogie Preprocessor took 16.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:22:52,069 INFO L168 Benchmark]: RCFGBuilder took 259.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-23 07:22:52,069 INFO L168 Benchmark]: TraceAbstraction took 180079.66 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 132.6 MB). Free memory was 1.1 GB in the beginning and 828.0 MB in the end (delta: 269.4 MB). Peak memory consumption was 402.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:22:52,070 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.63 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 259.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 180079.66 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 132.6 MB). Free memory was 1.1 GB in the beginning and 828.0 MB in the end (delta: 269.4 MB). Peak memory consumption was 402.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 07:22:53,434 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:22:53,435 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:22:53,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:22:53,444 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:22:53,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:22:53,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:22:53,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:22:53,448 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:22:53,449 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:22:53,450 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:22:53,450 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:22:53,451 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:22:53,452 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:22:53,453 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:22:53,453 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:22:53,454 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:22:53,455 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:22:53,457 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:22:53,458 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:22:53,459 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:22:53,460 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:22:53,462 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:22:53,462 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:22:53,462 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:22:53,463 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:22:53,464 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:22:53,464 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:22:53,465 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:22:53,466 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:22:53,466 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:22:53,466 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:22:53,466 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:22:53,467 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:22:53,467 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:22:53,469 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:22:53,469 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 07:22:53,480 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:22:53,480 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:22:53,481 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:22:53,481 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:22:53,481 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 07:22:53,481 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 07:22:53,481 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 07:22:53,481 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 07:22:53,482 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 07:22:53,482 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 07:22:53,482 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:22:53,482 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:22:53,482 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:22:53,483 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:22:53,483 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:22:53,483 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:22:53,483 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:22:53,483 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 07:22:53,483 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 07:22:53,485 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:22:53,485 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:22:53,485 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:22:53,486 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:22:53,486 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:22:53,486 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:22:53,486 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:22:53,486 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:22:53,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:22:53,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:22:53,486 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:22:53,487 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:22:53,487 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 07:22:53,487 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:22:53,487 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 07:22:53,487 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 07:22:53,487 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_1926395a-a016-464d-af90-724e0580bb70/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 -> 5731759e27f65811d3eb90851daa5d4a6db5907c [2018-11-23 07:22:53,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:22:53,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:22:53,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:22:53,531 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:22:53,531 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:22:53,532 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/../../sv-benchmarks/c/heap-data/min_max_true-unreach-call.i [2018-11-23 07:22:53,568 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/data/13948b8cf/8dad8e71257b40bbb83fc7e959aeeda7/FLAG7cd048796 [2018-11-23 07:22:54,018 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:22:54,018 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/sv-benchmarks/c/heap-data/min_max_true-unreach-call.i [2018-11-23 07:22:54,026 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/data/13948b8cf/8dad8e71257b40bbb83fc7e959aeeda7/FLAG7cd048796 [2018-11-23 07:22:54,035 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/data/13948b8cf/8dad8e71257b40bbb83fc7e959aeeda7 [2018-11-23 07:22:54,037 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:22:54,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:22:54,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:22:54,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:22:54,041 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:22:54,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199d0ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54, skipping insertion in model container [2018-11-23 07:22:54,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:22:54,083 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:22:54,298 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:22:54,310 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:22:54,340 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:22:54,423 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:22:54,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54 WrapperNode [2018-11-23 07:22:54,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:22:54,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:22:54,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:22:54,424 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:22:54,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:22:54,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:22:54,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:22:54,449 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:22:54,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (1/1) ... [2018-11-23 07:22:54,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:22:54,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:22:54,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:22:54,474 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:22:54,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:22:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 07:22:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 07:22:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:22:54,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:22:54,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:22:54,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:22:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 07:22:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 07:22:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 07:22:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:22:54,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:22:54,710 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:22:54,710 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 07:22:54,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:22:54 BoogieIcfgContainer [2018-11-23 07:22:54,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:22:54,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:22:54,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:22:54,712 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:22:54,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:22:54" (1/3) ... [2018-11-23 07:22:54,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38345cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:22:54, skipping insertion in model container [2018-11-23 07:22:54,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:22:54" (2/3) ... [2018-11-23 07:22:54,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38345cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:22:54, skipping insertion in model container [2018-11-23 07:22:54,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:22:54" (3/3) ... [2018-11-23 07:22:54,714 INFO L112 eAbstractionObserver]: Analyzing ICFG min_max_true-unreach-call.i [2018-11-23 07:22:54,720 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:22:54,725 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-23 07:22:54,739 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-23 07:22:54,758 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:22:54,759 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:22:54,759 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:22:54,759 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:22:54,759 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:22:54,759 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:22:54,759 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:22:54,759 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:22:54,759 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:22:54,771 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-23 07:22:54,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 07:22:54,775 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:22:54,775 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:22:54,777 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:22:54,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:22:54,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1338090159, now seen corresponding path program 1 times [2018-11-23 07:22:54,783 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:22:54,783 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:22:54,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:22:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:22:54,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:22:54,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:22:54,888 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 07:22:54,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:22:54,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:22:54,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:22:54,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:22:54,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:22:54,903 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2018-11-23 07:22:54,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:22:54,993 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2018-11-23 07:22:54,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 07:22:54,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-23 07:22:54,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:22:55,000 INFO L225 Difference]: With dead ends: 43 [2018-11-23 07:22:55,001 INFO L226 Difference]: Without dead ends: 21 [2018-11-23 07:22:55,003 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 07:22:55,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-23 07:22:55,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-23 07:22:55,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 07:22:55,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2018-11-23 07:22:55,026 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2018-11-23 07:22:55,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:22:55,026 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-11-23 07:22:55,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:22:55,026 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-11-23 07:22:55,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 07:22:55,026 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:22:55,026 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:22:55,027 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:22:55,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:22:55,027 INFO L82 PathProgramCache]: Analyzing trace with hash -281083925, now seen corresponding path program 1 times [2018-11-23 07:22:55,028 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:22:55,028 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:22:55,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:22:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:22:55,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:22:55,124 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:22:55,129 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:22:55,134 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:55,140 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:22:55,141 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,156 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,159 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,170 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,171 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:30, output treesize:10 [2018-11-23 07:22:55,221 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:22:55,224 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:22:55,224 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,227 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,229 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:22:55,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:22:55,242 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 07:22:55,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:22:55,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 07:22:55,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:22:55,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:22:55,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:22:55,250 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 6 states. [2018-11-23 07:22:55,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:22:55,536 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2018-11-23 07:22:55,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:22:55,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-23 07:22:55,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:22:55,538 INFO L225 Difference]: With dead ends: 43 [2018-11-23 07:22:55,538 INFO L226 Difference]: Without dead ends: 41 [2018-11-23 07:22:55,539 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:22:55,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-23 07:22:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 27. [2018-11-23 07:22:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-23 07:22:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2018-11-23 07:22:55,543 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 15 [2018-11-23 07:22:55,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:22:55,543 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-11-23 07:22:55,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:22:55,543 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2018-11-23 07:22:55,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 07:22:55,544 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:22:55,544 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:22:55,544 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:22:55,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:22:55,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1090430551, now seen corresponding path program 1 times [2018-11-23 07:22:55,545 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:22:55,545 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:22:55,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:22:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:22:55,584 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:22:55,597 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:22:55,601 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:22:55,606 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:55,611 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:22:55,611 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,619 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,622 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,638 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,639 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:38, output treesize:18 [2018-11-23 07:22:55,700 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:22:55,706 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 07:22:55,706 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,708 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:55,714 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:10 [2018-11-23 07:22:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:22:55,740 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 07:22:55,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:22:55,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:22:55,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:22:55,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:22:55,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:22:55,745 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 7 states. [2018-11-23 07:22:55,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:22:55,949 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2018-11-23 07:22:55,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:22:55,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-11-23 07:22:55,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:22:55,950 INFO L225 Difference]: With dead ends: 50 [2018-11-23 07:22:55,950 INFO L226 Difference]: Without dead ends: 48 [2018-11-23 07:22:55,950 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:22:55,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-23 07:22:55,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 31. [2018-11-23 07:22:55,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-23 07:22:55,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2018-11-23 07:22:55,956 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 15 [2018-11-23 07:22:55,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:22:55,956 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2018-11-23 07:22:55,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:22:55,957 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2018-11-23 07:22:55,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 07:22:55,957 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:22:55,957 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:22:55,957 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:22:55,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:22:55,957 INFO L82 PathProgramCache]: Analyzing trace with hash 461413357, now seen corresponding path program 1 times [2018-11-23 07:22:55,958 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:22:55,958 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:22:55,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:22:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:22:56,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:22:56,018 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:22:56,028 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:22:56,033 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:56,035 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:22:56,036 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,044 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,047 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,057 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:30, output treesize:10 [2018-11-23 07:22:56,089 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:22:56,092 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:22:56,092 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,094 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,095 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,096 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:22:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:22:56,109 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 07:22:56,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:22:56,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 07:22:56,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:22:56,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:22:56,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:22:56,111 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand 6 states. [2018-11-23 07:22:56,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:22:56,365 INFO L93 Difference]: Finished difference Result 56 states and 67 transitions. [2018-11-23 07:22:56,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:22:56,365 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-23 07:22:56,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:22:56,367 INFO L225 Difference]: With dead ends: 56 [2018-11-23 07:22:56,367 INFO L226 Difference]: Without dead ends: 54 [2018-11-23 07:22:56,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:22:56,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-23 07:22:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2018-11-23 07:22:56,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-23 07:22:56,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2018-11-23 07:22:56,376 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 17 [2018-11-23 07:22:56,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:22:56,376 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2018-11-23 07:22:56,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:22:56,376 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2018-11-23 07:22:56,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 07:22:56,377 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:22:56,377 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:22:56,379 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:22:56,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:22:56,379 INFO L82 PathProgramCache]: Analyzing trace with hash -347933269, now seen corresponding path program 1 times [2018-11-23 07:22:56,380 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:22:56,380 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:22:56,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:22:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:22:56,433 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:22:56,449 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:22:56,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:22:56,455 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:56,458 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:22:56,458 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,465 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,476 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,490 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:35, output treesize:15 [2018-11-23 07:22:56,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:22:56,545 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 07:22:56,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,547 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:56,551 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:10 [2018-11-23 07:22:56,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:22:56,567 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 07:22:56,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:22:56,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 07:22:56,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 07:22:56,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 07:22:56,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 07:22:56,573 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. Second operand 8 states. [2018-11-23 07:22:56,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:22:56,922 INFO L93 Difference]: Finished difference Result 75 states and 95 transitions. [2018-11-23 07:22:56,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:22:56,922 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-11-23 07:22:56,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:22:56,923 INFO L225 Difference]: With dead ends: 75 [2018-11-23 07:22:56,923 INFO L226 Difference]: Without dead ends: 73 [2018-11-23 07:22:56,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-11-23 07:22:56,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-23 07:22:56,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 53. [2018-11-23 07:22:56,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-23 07:22:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions. [2018-11-23 07:22:56,931 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 73 transitions. Word has length 17 [2018-11-23 07:22:56,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:22:56,931 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 73 transitions. [2018-11-23 07:22:56,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 07:22:56,931 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2018-11-23 07:22:56,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 07:22:56,932 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:22:56,932 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:22:56,933 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:22:56,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:22:56,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1901797187, now seen corresponding path program 1 times [2018-11-23 07:22:56,933 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:22:56,933 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:22:56,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:22:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:22:56,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:22:57,065 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 49 [2018-11-23 07:22:57,074 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2018-11-23 07:22:57,084 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:57,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:22:57,088 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:57,108 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:57,229 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 41 [2018-11-23 07:22:57,235 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:57,238 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 40 [2018-11-23 07:22:57,239 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:57,299 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:22:57,375 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 66 [2018-11-23 07:22:57,376 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-23 07:22:57,440 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:22:57,502 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:22:57,572 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 07:22:57,572 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:57, output treesize:60 [2018-11-23 07:22:57,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:22:57,758 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:22:57,758 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:22:57,760 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:57,761 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:57,761 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:22:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:22:57,784 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:22:58,080 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:22:58,081 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:58,082 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:22:58,082 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:1 [2018-11-23 07:22:58,085 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 07:22:58,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 07:22:58,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2018-11-23 07:22:58,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 07:22:58,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 07:22:58,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-11-23 07:22:58,088 INFO L87 Difference]: Start difference. First operand 53 states and 73 transitions. Second operand 16 states. [2018-11-23 07:23:02,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:23:02,012 INFO L93 Difference]: Finished difference Result 177 states and 206 transitions. [2018-11-23 07:23:02,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-23 07:23:02,013 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2018-11-23 07:23:02,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:23:02,014 INFO L225 Difference]: With dead ends: 177 [2018-11-23 07:23:02,014 INFO L226 Difference]: Without dead ends: 175 [2018-11-23 07:23:02,014 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2018-11-23 07:23:02,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-11-23 07:23:02,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 57. [2018-11-23 07:23:02,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-23 07:23:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 80 transitions. [2018-11-23 07:23:02,025 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 80 transitions. Word has length 19 [2018-11-23 07:23:02,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:23:02,025 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 80 transitions. [2018-11-23 07:23:02,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 07:23:02,025 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2018-11-23 07:23:02,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 07:23:02,026 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:23:02,026 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:23:02,026 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:23:02,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:23:02,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1566028479, now seen corresponding path program 1 times [2018-11-23 07:23:02,026 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:23:02,027 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:23:02,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:23:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:23:02,072 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:23:02,213 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 50 [2018-11-23 07:23:02,220 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2018-11-23 07:23:02,226 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:02,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:23:02,231 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:02,249 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:02,414 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 42 [2018-11-23 07:23:02,419 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:02,423 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-11-23 07:23:02,423 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:02,474 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:02,591 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 67 [2018-11-23 07:23:02,592 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-23 07:23:02,657 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:23:02,700 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:23:02,758 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 07:23:02,758 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:63, output treesize:72 [2018-11-23 07:23:02,928 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-23 07:23:02,929 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 9 [2018-11-23 07:23:02,930 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:02,934 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:02,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:02,938 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:9 [2018-11-23 07:23:02,959 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:23:02,959 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:23:03,196 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:23:03,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:03,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:03,198 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:1 [2018-11-23 07:23:03,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 07:23:03,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 07:23:03,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2018-11-23 07:23:03,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 07:23:03,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 07:23:03,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2018-11-23 07:23:03,203 INFO L87 Difference]: Start difference. First operand 57 states and 80 transitions. Second operand 18 states. [2018-11-23 07:23:04,866 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2018-11-23 07:23:07,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:23:07,437 INFO L93 Difference]: Finished difference Result 188 states and 234 transitions. [2018-11-23 07:23:07,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-23 07:23:07,438 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 19 [2018-11-23 07:23:07,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:23:07,439 INFO L225 Difference]: With dead ends: 188 [2018-11-23 07:23:07,439 INFO L226 Difference]: Without dead ends: 157 [2018-11-23 07:23:07,440 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=563, Invalid=1693, Unknown=0, NotChecked=0, Total=2256 [2018-11-23 07:23:07,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-11-23 07:23:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 39. [2018-11-23 07:23:07,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-23 07:23:07,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2018-11-23 07:23:07,451 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 19 [2018-11-23 07:23:07,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:23:07,451 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2018-11-23 07:23:07,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 07:23:07,452 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2018-11-23 07:23:07,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 07:23:07,452 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:23:07,452 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:23:07,452 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:23:07,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:23:07,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2073854043, now seen corresponding path program 1 times [2018-11-23 07:23:07,453 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:23:07,453 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:23:07,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:23:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:23:07,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:23:07,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:23:07,546 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:23:07,546 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,550 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,567 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:23:07,570 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:23:07,571 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,573 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,582 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,582 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2018-11-23 07:23:07,617 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:23:07,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:23:07,620 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,624 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,634 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:23:07,640 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:23:07,640 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,642 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,647 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,647 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-23 07:23:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:23:07,672 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:23:07,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:23:07,749 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:23:07,749 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:23:07,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:23:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:23:07,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:23:07,794 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:23:07,797 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:23:07,797 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,801 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:23:07,820 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:23:07,820 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,824 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,832 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2018-11-23 07:23:07,837 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:23:07,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:23:07,840 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,843 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,855 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:23:07,859 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:23:07,859 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,862 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,882 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:07,882 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-11-23 07:23:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:23:07,883 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:23:07,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:23:07,927 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:23:07,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6] total 8 [2018-11-23 07:23:07,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 07:23:07,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 07:23:07,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-23 07:23:07,928 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 8 states. [2018-11-23 07:23:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:23:08,146 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2018-11-23 07:23:08,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:23:08,146 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-11-23 07:23:08,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:23:08,147 INFO L225 Difference]: With dead ends: 63 [2018-11-23 07:23:08,147 INFO L226 Difference]: Without dead ends: 47 [2018-11-23 07:23:08,147 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-23 07:23:08,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-23 07:23:08,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-23 07:23:08,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-23 07:23:08,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2018-11-23 07:23:08,157 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 20 [2018-11-23 07:23:08,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:23:08,157 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2018-11-23 07:23:08,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 07:23:08,157 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2018-11-23 07:23:08,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 07:23:08,158 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:23:08,158 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:23:08,158 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:23:08,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:23:08,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1849801925, now seen corresponding path program 1 times [2018-11-23 07:23:08,158 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:23:08,159 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:23:08,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:23:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:23:08,232 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:23:08,308 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 49 [2018-11-23 07:23:08,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2018-11-23 07:23:08,319 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:08,323 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:23:08,323 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:08,343 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:08,482 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 41 [2018-11-23 07:23:08,496 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:08,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 66 [2018-11-23 07:23:08,543 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-11-23 07:23:08,641 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:08,645 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 40 [2018-11-23 07:23:08,645 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:08,698 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:23:08,755 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 07:23:08,828 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 07:23:08,828 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:57, output treesize:60 [2018-11-23 07:23:08,984 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:23:08,986 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:23:08,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:08,988 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:08,989 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:08,989 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:23:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:23:09,011 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:23:09,290 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:23:09,291 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:09,292 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:09,292 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:1 [2018-11-23 07:23:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 07:23:09,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 07:23:09,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2018-11-23 07:23:09,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 07:23:09,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 07:23:09,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2018-11-23 07:23:09,296 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand 16 states. [2018-11-23 07:23:14,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:23:14,687 INFO L93 Difference]: Finished difference Result 147 states and 175 transitions. [2018-11-23 07:23:14,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 07:23:14,688 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2018-11-23 07:23:14,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:23:14,688 INFO L225 Difference]: With dead ends: 147 [2018-11-23 07:23:14,689 INFO L226 Difference]: Without dead ends: 125 [2018-11-23 07:23:14,689 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=202, Invalid=609, Unknown=1, NotChecked=0, Total=812 [2018-11-23 07:23:14,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-11-23 07:23:14,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 52. [2018-11-23 07:23:14,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-23 07:23:14,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 68 transitions. [2018-11-23 07:23:14,701 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 68 transitions. Word has length 21 [2018-11-23 07:23:14,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:23:14,701 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 68 transitions. [2018-11-23 07:23:14,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 07:23:14,701 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 68 transitions. [2018-11-23 07:23:14,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 07:23:14,702 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:23:14,702 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:23:14,702 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:23:14,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:23:14,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1272344445, now seen corresponding path program 1 times [2018-11-23 07:23:14,702 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:23:14,702 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:23:14,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:23:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:23:14,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:23:14,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:23:14,774 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:14,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:23:14,812 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:23:14,816 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:14,818 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:23:14,818 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:14,824 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:14,827 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:14,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:14,838 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-11-23 07:23:14,891 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:14,896 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:14,897 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:23:14,898 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,064 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 07:23:15,070 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:23:15,077 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:15,082 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:23:15,083 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,097 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,122 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:23:15,203 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:23:15,204 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,209 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,259 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:23:15,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:23:15,263 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,267 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,303 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,304 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:85, output treesize:56 [2018-11-23 07:23:15,551 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:23:15,554 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:23:15,555 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,558 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,572 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:23:15,574 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:23:15,575 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,579 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,588 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:23:15,589 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:44, output treesize:22 [2018-11-23 07:23:15,632 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:15,636 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:15,636 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2018-11-23 07:23:15,649 INFO L478 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 17 treesize of output 20 [2018-11-23 07:23:15,650 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 07:23:15,666 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:23:15,666 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,672 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,677 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:15,677 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:26, output treesize:3 [2018-11-23 07:23:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:23:15,706 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:23:16,218 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:23:16,242 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:23:16,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 07:23:16,267 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:55, output treesize:65 [2018-11-23 07:23:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:23:18,907 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:23:18,907 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:23:18,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:23:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:23:18,955 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:23:18,960 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:23:18,960 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:18,986 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:23:18,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:23:18,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:18,996 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:23:18,996 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,002 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,004 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,015 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-11-23 07:23:19,090 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:19,096 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:19,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:23:19,097 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:23:19,208 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:23:19,208 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,217 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,319 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-11-23 07:23:19,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:23:19,331 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:23:19,337 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:23:19,337 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,350 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,365 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,412 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:23:19,417 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:23:19,417 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,422 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,456 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,456 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:75, output treesize:42 [2018-11-23 07:23:19,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:23:19,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:23:19,883 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,911 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-11-23 07:23:19,915 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2018-11-23 07:23:19,916 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,926 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:19,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 07:23:19,943 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:56, output treesize:30 [2018-11-23 07:23:20,061 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2018-11-23 07:23:20,065 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 5 [2018-11-23 07:23:20,065 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:20,075 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:23:20,075 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:23:20,078 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:20,084 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:23:20,084 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:34, output treesize:3 [2018-11-23 07:23:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:23:20,089 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:23:20,213 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:23:20,235 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:23:20,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:23:20,265 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:54, output treesize:62 [2018-11-23 07:23:20,987 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:23:21,003 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:23:21,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 9, 9] total 30 [2018-11-23 07:23:21,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-11-23 07:23:21,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-11-23 07:23:21,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=740, Unknown=1, NotChecked=0, Total=870 [2018-11-23 07:23:21,004 INFO L87 Difference]: Start difference. First operand 52 states and 68 transitions. Second operand 30 states. [2018-11-23 07:23:23,814 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-11-23 07:23:30,104 WARN L180 SmtUtils]: Spent 2.36 s on a formula simplification that was a NOOP. DAG size: 72 [2018-11-23 07:23:32,604 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-11-23 07:23:33,068 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2018-11-23 07:23:34,257 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2018-11-23 07:23:34,855 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2018-11-23 07:23:44,235 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-11-23 07:23:47,212 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2018-11-23 07:23:47,513 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2018-11-23 07:23:56,105 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2018-11-23 07:23:56,440 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2018-11-23 07:23:59,843 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2018-11-23 07:24:00,293 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-11-23 07:24:00,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:24:00,588 INFO L93 Difference]: Finished difference Result 269 states and 314 transitions. [2018-11-23 07:24:00,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-11-23 07:24:00,590 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 24 [2018-11-23 07:24:00,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:24:00,591 INFO L225 Difference]: With dead ends: 269 [2018-11-23 07:24:00,591 INFO L226 Difference]: Without dead ends: 267 [2018-11-23 07:24:00,592 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=1250, Invalid=4150, Unknown=2, NotChecked=0, Total=5402 [2018-11-23 07:24:00,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2018-11-23 07:24:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 82. [2018-11-23 07:24:00,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-23 07:24:00,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 114 transitions. [2018-11-23 07:24:00,617 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 114 transitions. Word has length 24 [2018-11-23 07:24:00,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:24:00,617 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 114 transitions. [2018-11-23 07:24:00,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-11-23 07:24:00,617 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 114 transitions. [2018-11-23 07:24:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 07:24:00,618 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:24:00,618 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:24:00,618 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:24:00,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:24:00,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1734752259, now seen corresponding path program 1 times [2018-11-23 07:24:00,619 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:24:00,619 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 14 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 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:24:00,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:24:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:24:00,691 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:24:00,698 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:24:00,698 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:00,728 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:24:00,731 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:00,735 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:00,738 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:24:00,739 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:00,745 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:00,747 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:00,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:00,762 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-11-23 07:24:00,795 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:00,801 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:00,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:24:00,802 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:00,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:00,896 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:00,896 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:00,904 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:00,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:00,972 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:00,973 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:00,979 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,032 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2018-11-23 07:24:01,035 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:01,041 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:01,045 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:01,046 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,053 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,061 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,082 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,082 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:63, output treesize:30 [2018-11-23 07:24:01,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:01,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:01,128 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,130 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,143 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:24:01,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 12 [2018-11-23 07:24:01,146 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,152 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,160 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:41, output treesize:11 [2018-11-23 07:24:01,178 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:01,179 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:01,180 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,181 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:01,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:24:01,198 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:01,198 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:24:01,325 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:01,331 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:01,348 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:01,348 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:28 [2018-11-23 07:24:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:03,543 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:24:03,543 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:24:03,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:24:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:24:03,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:24:03,592 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:24:03,592 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:24:03,632 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:03,636 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:03,639 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:24:03,639 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,646 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,649 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,662 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,662 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-11-23 07:24:03,677 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:03,689 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:03,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:24:03,690 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,826 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:03,831 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:03,831 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,838 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,904 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-11-23 07:24:03,908 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:03,914 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:03,919 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:03,919 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,931 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,946 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,980 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:03,984 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:03,984 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:03,988 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:04,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:04,009 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:60, output treesize:27 [2018-11-23 07:24:04,106 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:04,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:04,109 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:04,112 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:04,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:24:04,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 12 [2018-11-23 07:24:04,128 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:04,134 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:04,142 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:04,142 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:41, output treesize:11 [2018-11-23 07:24:04,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:04,147 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:04,147 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:04,148 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:04,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:04,150 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:24:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:04,152 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:24:04,157 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:04,165 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:04,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:04,185 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:30 [2018-11-23 07:24:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:04,568 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:24:04,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8] total 18 [2018-11-23 07:24:04,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 07:24:04,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 07:24:04,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=258, Unknown=1, NotChecked=0, Total=306 [2018-11-23 07:24:04,569 INFO L87 Difference]: Start difference. First operand 82 states and 114 transitions. Second operand 18 states. [2018-11-23 07:24:06,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:24:06,099 INFO L93 Difference]: Finished difference Result 130 states and 163 transitions. [2018-11-23 07:24:06,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 07:24:06,100 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 24 [2018-11-23 07:24:06,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:24:06,100 INFO L225 Difference]: With dead ends: 130 [2018-11-23 07:24:06,100 INFO L226 Difference]: Without dead ends: 128 [2018-11-23 07:24:06,101 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=125, Invalid=474, Unknown=1, NotChecked=0, Total=600 [2018-11-23 07:24:06,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-11-23 07:24:06,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 82. [2018-11-23 07:24:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-23 07:24:06,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 114 transitions. [2018-11-23 07:24:06,121 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 114 transitions. Word has length 24 [2018-11-23 07:24:06,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:24:06,121 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 114 transitions. [2018-11-23 07:24:06,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 07:24:06,122 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 114 transitions. [2018-11-23 07:24:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 07:24:06,122 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:24:06,122 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:24:06,123 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:24:06,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:24:06,123 INFO L82 PathProgramCache]: Analyzing trace with hash 733210371, now seen corresponding path program 2 times [2018-11-23 07:24:06,123 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:24:06,123 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 16 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 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:24:06,138 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 07:24:06,177 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 07:24:06,178 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:24:06,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:24:06,224 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:06,226 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-23 07:24:06,227 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,228 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,230 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:20, output treesize:4 [2018-11-23 07:24:06,238 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 07:24:06,238 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:24:06,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:06,288 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-11-23 07:24:06,289 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:06,295 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:06,300 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:06,300 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:20, output treesize:8 [2018-11-23 07:24:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 07:24:06,309 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:24:06,309 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:24:06,318 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 07:24:06,338 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 07:24:06,338 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:24:06,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:24:06,343 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:06,345 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-23 07:24:06,345 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,347 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,348 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,348 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:20, output treesize:4 [2018-11-23 07:24:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 07:24:06,350 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:24:06,384 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:06,386 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-11-23 07:24:06,387 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:06,392 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:06,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:06,398 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:20, output treesize:8 [2018-11-23 07:24:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 07:24:06,435 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:24:06,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6] total 7 [2018-11-23 07:24:06,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:24:06,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:24:06,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:24:06,436 INFO L87 Difference]: Start difference. First operand 82 states and 114 transitions. Second operand 7 states. [2018-11-23 07:24:06,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:24:06,784 INFO L93 Difference]: Finished difference Result 196 states and 263 transitions. [2018-11-23 07:24:06,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:24:06,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-23 07:24:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:24:06,785 INFO L225 Difference]: With dead ends: 196 [2018-11-23 07:24:06,785 INFO L226 Difference]: Without dead ends: 151 [2018-11-23 07:24:06,786 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-23 07:24:06,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-11-23 07:24:06,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 112. [2018-11-23 07:24:06,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-11-23 07:24:06,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 153 transitions. [2018-11-23 07:24:06,820 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 153 transitions. Word has length 24 [2018-11-23 07:24:06,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:24:06,820 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 153 transitions. [2018-11-23 07:24:06,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:24:06,820 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 153 transitions. [2018-11-23 07:24:06,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 07:24:06,821 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:24:06,821 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:24:06,821 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:24:06,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:24:06,822 INFO L82 PathProgramCache]: Analyzing trace with hash 847468935, now seen corresponding path program 1 times [2018-11-23 07:24:06,822 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:24:06,822 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:24:06,850 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:24:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:24:06,908 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:24:06,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:24:06,916 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,950 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:24:06,953 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:06,958 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:06,961 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:06,961 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,967 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,969 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:06,983 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:44, output treesize:23 [2018-11-23 07:24:07,026 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:07,032 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:07,033 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:24:07,033 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,190 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-11-23 07:24:07,194 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:07,201 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:07,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:07,207 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,221 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,239 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:07,299 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:07,299 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,304 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,337 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:07,340 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:07,341 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,344 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,367 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:69, output treesize:36 [2018-11-23 07:24:07,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:07,418 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:07,418 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,421 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,435 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-23 07:24:07,437 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-11-23 07:24:07,438 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,443 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,451 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,452 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:47, output treesize:17 [2018-11-23 07:24:07,472 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:24:07,474 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 07:24:07,474 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,480 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,484 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,484 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:10 [2018-11-23 07:24:07,506 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:07,507 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:24:07,607 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:07,614 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:07,632 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:07,633 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:28 [2018-11-23 07:24:07,814 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,814 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 8 variables, input treesize:55, output treesize:1 [2018-11-23 07:24:07,818 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:07,821 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:24:07,821 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:24:07,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:24:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:24:07,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:24:07,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:24:07,870 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,906 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:24:07,910 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:07,914 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:07,918 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:07,919 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,926 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,929 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:07,943 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:44, output treesize:23 [2018-11-23 07:24:07,984 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:07,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:07,995 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:24:07,995 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,130 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:08,135 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:08,135 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,142 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:08,203 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:08,204 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,209 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,263 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-23 07:24:08,268 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:08,273 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:08,277 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:08,277 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,287 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,299 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,323 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,323 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:66, output treesize:33 [2018-11-23 07:24:08,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:08,419 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:08,419 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,423 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,443 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-23 07:24:08,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-11-23 07:24:08,446 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,455 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,463 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,464 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:17 [2018-11-23 07:24:08,466 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:24:08,467 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 07:24:08,468 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,474 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,474 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:10 [2018-11-23 07:24:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:08,476 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:24:08,479 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:08,492 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:08,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:08,513 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:30 [2018-11-23 07:24:08,854 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:08,854 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 9 variables, input treesize:57, output treesize:1 [2018-11-23 07:24:08,858 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:08,876 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:24:08,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9, 8] total 19 [2018-11-23 07:24:08,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-23 07:24:08,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-23 07:24:08,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2018-11-23 07:24:08,876 INFO L87 Difference]: Start difference. First operand 112 states and 153 transitions. Second operand 19 states. [2018-11-23 07:24:17,453 WARN L180 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 49 [2018-11-23 07:24:34,419 WARN L180 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 48 [2018-11-23 07:24:34,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:24:34,681 INFO L93 Difference]: Finished difference Result 279 states and 336 transitions. [2018-11-23 07:24:34,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-23 07:24:34,682 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 24 [2018-11-23 07:24:34,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:24:34,684 INFO L225 Difference]: With dead ends: 279 [2018-11-23 07:24:34,684 INFO L226 Difference]: Without dead ends: 277 [2018-11-23 07:24:34,684 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=243, Invalid=805, Unknown=8, NotChecked=0, Total=1056 [2018-11-23 07:24:34,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2018-11-23 07:24:34,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 114. [2018-11-23 07:24:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-11-23 07:24:34,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 155 transitions. [2018-11-23 07:24:34,719 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 155 transitions. Word has length 24 [2018-11-23 07:24:34,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:24:34,719 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 155 transitions. [2018-11-23 07:24:34,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-23 07:24:34,719 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 155 transitions. [2018-11-23 07:24:34,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 07:24:34,720 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:24:34,720 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:24:34,720 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:24:34,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:24:34,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1342793349, now seen corresponding path program 1 times [2018-11-23 07:24:34,721 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:24:34,721 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:24:34,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:24:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:24:34,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:24:34,798 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:24:34,798 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:34,829 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:24:34,833 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:34,837 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:34,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:24:34,840 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:34,846 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:34,848 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:34,861 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:34,861 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-11-23 07:24:34,895 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:34,902 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:34,902 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:24:34,902 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,039 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-11-23 07:24:35,044 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:35,052 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:35,057 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:35,058 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,073 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,092 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:35,152 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:35,153 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,157 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,189 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:35,192 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:35,192 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,196 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,225 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,225 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:63, output treesize:30 [2018-11-23 07:24:35,277 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:35,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:35,280 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,283 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,298 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:24:35,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 12 [2018-11-23 07:24:35,306 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,312 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,320 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,321 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:41, output treesize:11 [2018-11-23 07:24:35,339 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:35,341 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:35,341 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,343 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:35,345 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:24:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:35,360 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:24:35,489 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:35,495 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:35,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:35,511 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:28 [2018-11-23 07:24:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:36,124 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:24:36,124 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:24:36,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:24:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:24:36,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:24:36,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:24:36,166 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,195 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:24:36,198 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:36,206 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:36,209 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:24:36,210 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,216 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,219 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,231 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,232 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-11-23 07:24:36,253 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:36,261 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:36,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:24:36,262 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,364 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:36,370 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:36,370 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,379 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,460 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 33 [2018-11-23 07:24:36,467 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:36,477 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:36,485 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:24:36,485 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,499 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,514 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,547 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:36,550 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:36,551 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,555 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,577 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,577 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:60, output treesize:27 [2018-11-23 07:24:36,675 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:36,679 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:36,679 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,684 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,702 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:24:36,705 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 12 [2018-11-23 07:24:36,706 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,713 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,725 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,725 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:41, output treesize:11 [2018-11-23 07:24:36,728 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:36,730 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:36,730 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,732 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:36,735 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 07:24:36,738 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:36,738 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:24:36,742 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:36,755 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:36,783 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:36,783 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:30 [2018-11-23 07:24:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:37,865 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:24:37,866 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8] total 18 [2018-11-23 07:24:37,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 07:24:37,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 07:24:37,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-11-23 07:24:37,866 INFO L87 Difference]: Start difference. First operand 114 states and 155 transitions. Second operand 18 states. [2018-11-23 07:24:39,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:24:39,577 INFO L93 Difference]: Finished difference Result 207 states and 262 transitions. [2018-11-23 07:24:39,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 07:24:39,578 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 26 [2018-11-23 07:24:39,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:24:39,579 INFO L225 Difference]: With dead ends: 207 [2018-11-23 07:24:39,579 INFO L226 Difference]: Without dead ends: 205 [2018-11-23 07:24:39,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2018-11-23 07:24:39,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-11-23 07:24:39,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 131. [2018-11-23 07:24:39,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-11-23 07:24:39,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 180 transitions. [2018-11-23 07:24:39,616 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 180 transitions. Word has length 26 [2018-11-23 07:24:39,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:24:39,616 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 180 transitions. [2018-11-23 07:24:39,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 07:24:39,616 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 180 transitions. [2018-11-23 07:24:39,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 07:24:39,617 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:24:39,617 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:24:39,617 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:24:39,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:24:39,617 INFO L82 PathProgramCache]: Analyzing trace with hash 649735685, now seen corresponding path program 1 times [2018-11-23 07:24:39,618 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:24:39,618 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:24:39,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:24:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:24:39,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:24:39,689 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:24:39,689 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:39,718 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:24:39,721 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:39,725 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:39,728 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:24:39,729 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:39,734 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:39,737 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:39,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:39,749 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-11-23 07:24:39,800 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:39,807 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:39,807 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:24:39,808 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,009 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:40,016 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:40,017 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,026 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:40,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:40,151 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,158 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,264 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2018-11-23 07:24:40,269 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:40,275 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:40,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:24:40,281 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,291 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,305 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,346 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,346 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:85, output treesize:56 [2018-11-23 07:24:40,605 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:40,607 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:40,608 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,611 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,626 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:24:40,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:24:40,629 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,632 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,642 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:40,642 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:44, output treesize:22 [2018-11-23 07:24:40,689 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:40,694 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:40,694 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2018-11-23 07:24:40,708 INFO L478 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 17 treesize of output 20 [2018-11-23 07:24:40,709 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 07:24:40,725 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:40,726 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,731 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:40,737 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:26, output treesize:3 [2018-11-23 07:24:40,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:40,771 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:24:41,335 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:41,360 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:41,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:41,390 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:55, output treesize:65 [2018-11-23 07:24:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:41,918 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:24:41,918 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:24:41,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:24:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:24:41,974 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:24:41,978 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:24:41,978 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,008 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:24:42,012 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:42,016 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:42,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:24:42,020 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,025 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,028 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,040 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,040 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-11-23 07:24:42,057 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:42,063 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:42,064 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:24:42,064 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,245 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:42,252 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:42,252 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,261 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,378 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 07:24:42,383 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:24:42,390 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:42,396 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:24:42,396 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,407 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,423 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,475 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:24:42,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:24:42,479 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,484 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,520 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,521 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:85, output treesize:56 [2018-11-23 07:24:42,525 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:24:42,529 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:42,529 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,532 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,552 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 07:24:42,555 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:24:42,555 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,558 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,568 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:42,568 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:44, output treesize:22 [2018-11-23 07:24:42,611 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:42,615 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:24:42,616 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2018-11-23 07:24:42,633 INFO L478 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 17 treesize of output 20 [2018-11-23 07:24:42,634 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 07:24:42,662 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:24:42,662 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,670 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,676 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:24:42,676 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:26, output treesize:3 [2018-11-23 07:24:42,681 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:42,681 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:24:42,685 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:42,711 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:42,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 07:24:42,740 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:55, output treesize:65 [2018-11-23 07:24:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:24:42,966 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:24:42,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12] total 22 [2018-11-23 07:24:42,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-23 07:24:42,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-23 07:24:42,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2018-11-23 07:24:42,967 INFO L87 Difference]: Start difference. First operand 131 states and 180 transitions. Second operand 22 states. [2018-11-23 07:24:50,235 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2018-11-23 07:24:50,883 WARN L180 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-11-23 07:25:08,511 WARN L180 SmtUtils]: Spent 16.55 s on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-11-23 07:25:10,823 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-11-23 07:25:28,265 WARN L180 SmtUtils]: Spent 16.88 s on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-11-23 07:25:29,903 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2018-11-23 07:25:30,330 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2018-11-23 07:25:51,187 WARN L180 SmtUtils]: Spent 16.57 s on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-11-23 07:25:53,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:25:53,843 INFO L93 Difference]: Finished difference Result 397 states and 465 transitions. [2018-11-23 07:25:53,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-11-23 07:25:53,845 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 26 [2018-11-23 07:25:53,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:25:53,846 INFO L225 Difference]: With dead ends: 397 [2018-11-23 07:25:53,846 INFO L226 Difference]: Without dead ends: 395 [2018-11-23 07:25:53,847 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 738 ImplicationChecksByTransitivity, 59.3s TimeCoverageRelationStatistics Valid=789, Invalid=2751, Unknown=0, NotChecked=0, Total=3540 [2018-11-23 07:25:53,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2018-11-23 07:25:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 148. [2018-11-23 07:25:53,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-23 07:25:53,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 205 transitions. [2018-11-23 07:25:53,903 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 205 transitions. Word has length 26 [2018-11-23 07:25:53,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:25:53,903 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 205 transitions. [2018-11-23 07:25:53,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-23 07:25:53,903 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 205 transitions. [2018-11-23 07:25:53,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 07:25:53,903 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:25:53,903 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:25:53,904 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:25:53,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:25:53,904 INFO L82 PathProgramCache]: Analyzing trace with hash -245554553, now seen corresponding path program 1 times [2018-11-23 07:25:53,904 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:25:53,904 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/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 [2018-11-23 07:25:53,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:25:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:25:53,972 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:25:53,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:25:53,988 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,021 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:25:54,024 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:25:54,028 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:25:54,030 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:25:54,030 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,036 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,039 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,053 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,053 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:41, output treesize:20 [2018-11-23 07:25:54,120 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:25:54,127 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:25:54,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:25:54,128 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,256 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-11-23 07:25:54,261 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:25:54,267 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:25:54,271 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:25:54,271 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,281 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,294 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:25:54,351 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:25:54,352 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,356 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:25:54,393 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:25:54,393 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,397 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,419 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,419 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:69, output treesize:36 [2018-11-23 07:25:54,476 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:25:54,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:25:54,479 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,481 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,495 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-23 07:25:54,498 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-11-23 07:25:54,498 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,516 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,525 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,525 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:47, output treesize:17 [2018-11-23 07:25:54,548 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:25:54,550 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 07:25:54,550 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,551 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,555 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,555 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:10 [2018-11-23 07:25:54,575 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:25:54,575 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:25:54,668 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:25:54,673 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:25:54,687 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 07:25:54,688 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:28 [2018-11-23 07:25:54,884 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,884 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 8 variables, input treesize:55, output treesize:1 [2018-11-23 07:25:54,888 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:25:54,889 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:25:54,889 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:25:54,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:25:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:25:54,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:25:54,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:25:54,922 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,959 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:25:54,962 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:25:54,966 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:25:54,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:25:54,971 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,978 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,980 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:54,995 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:41, output treesize:20 [2018-11-23 07:25:55,012 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:25:55,018 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:25:55,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:25:55,020 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,133 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:25:55,138 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:25:55,138 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,147 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:25:55,221 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:25:55,221 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,227 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,282 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-23 07:25:55,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:25:55,291 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:25:55,295 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:25:55,295 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,305 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,318 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,343 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,343 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:66, output treesize:33 [2018-11-23 07:25:55,459 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:25:55,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:25:55,462 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,465 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,481 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-23 07:25:55,483 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-11-23 07:25:55,483 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,489 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,500 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,500 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:17 [2018-11-23 07:25:55,502 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:25:55,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 07:25:55,504 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,506 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,510 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:25:55,510 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:10 [2018-11-23 07:25:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:25:55,513 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:25:55,517 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:25:55,525 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:25:55,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:25:55,545 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:30 [2018-11-23 07:25:58,323 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-11-23 07:25:58,323 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 9 variables, input treesize:57, output treesize:1 [2018-11-23 07:25:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:25:58,348 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:25:58,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10, 9] total 22 [2018-11-23 07:25:58,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-23 07:25:58,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-23 07:25:58,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=384, Unknown=1, NotChecked=0, Total=462 [2018-11-23 07:25:58,349 INFO L87 Difference]: Start difference. First operand 148 states and 205 transitions. Second operand 22 states. [2018-11-23 07:26:02,844 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-11-23 07:26:08,267 WARN L180 SmtUtils]: Spent 2.11 s on a formula simplification that was a NOOP. DAG size: 49 [2018-11-23 07:26:08,453 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-11-23 07:26:11,186 WARN L180 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-11-23 07:26:11,776 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-11-23 07:26:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:26:22,794 INFO L93 Difference]: Finished difference Result 265 states and 335 transitions. [2018-11-23 07:26:22,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-23 07:26:22,795 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 26 [2018-11-23 07:26:22,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:26:22,796 INFO L225 Difference]: With dead ends: 265 [2018-11-23 07:26:22,796 INFO L226 Difference]: Without dead ends: 263 [2018-11-23 07:26:22,797 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=339, Invalid=1064, Unknown=3, NotChecked=0, Total=1406 [2018-11-23 07:26:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-11-23 07:26:22,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 141. [2018-11-23 07:26:22,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-11-23 07:26:22,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 193 transitions. [2018-11-23 07:26:22,851 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 193 transitions. Word has length 26 [2018-11-23 07:26:22,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:26:22,851 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 193 transitions. [2018-11-23 07:26:22,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-23 07:26:22,852 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 193 transitions. [2018-11-23 07:26:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-23 07:26:22,852 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:26:22,852 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:26:22,852 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:26:22,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:26:22,853 INFO L82 PathProgramCache]: Analyzing trace with hash -2051682647, now seen corresponding path program 3 times [2018-11-23 07:26:22,853 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:26:22,853 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 26 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 26 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:26:22,871 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-23 07:26:22,995 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 07:26:22,995 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:26:23,015 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:26:23,024 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 07:26:23,027 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 07:26:23,027 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:23,029 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:23,031 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:23,031 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-11-23 07:26:23,102 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-23 07:26:23,105 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 8 [2018-11-23 07:26:23,106 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:23,116 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:23,118 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:23,118 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:3 [2018-11-23 07:26:23,191 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 07:26:23,194 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 07:26:23,194 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:23,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:23,203 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:23,203 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:22, output treesize:7 [2018-11-23 07:26:23,242 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 07:26:23,242 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:26:23,397 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-23 07:26:23,400 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:26:23,400 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:23,407 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:23,413 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:23,413 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:9 [2018-11-23 07:26:23,801 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-23 07:26:23,801 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:23,802 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:23,802 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:34, output treesize:1 [2018-11-23 07:26:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 07:26:23,806 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:26:23,806 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:26:23,813 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:26:24,186 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 07:26:24,187 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:26:24,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:26:24,193 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 07:26:24,195 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 07:26:24,195 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:24,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:24,199 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:24,199 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-11-23 07:26:24,203 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-23 07:26:24,208 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 8 [2018-11-23 07:26:24,209 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:24,220 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:24,223 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:24,223 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:3 [2018-11-23 07:26:24,307 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 07:26:24,310 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 07:26:24,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:24,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:24,319 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:24,319 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:22, output treesize:7 [2018-11-23 07:26:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 07:26:24,325 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:26:24,329 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-23 07:26:24,333 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 07:26:24,333 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:24,340 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:24,345 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:24,346 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:9 [2018-11-23 07:26:24,441 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-23 07:26:24,441 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:24,441 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:24,442 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:34, output treesize:1 [2018-11-23 07:26:24,444 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 07:26:24,462 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:26:24,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 11, 9] total 18 [2018-11-23 07:26:24,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 07:26:24,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 07:26:24,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2018-11-23 07:26:24,463 INFO L87 Difference]: Start difference. First operand 141 states and 193 transitions. Second operand 18 states. [2018-11-23 07:26:30,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:26:30,571 INFO L93 Difference]: Finished difference Result 473 states and 579 transitions. [2018-11-23 07:26:30,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-23 07:26:30,572 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 28 [2018-11-23 07:26:30,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:26:30,574 INFO L225 Difference]: With dead ends: 473 [2018-11-23 07:26:30,574 INFO L226 Difference]: Without dead ends: 403 [2018-11-23 07:26:30,575 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=259, Invalid=671, Unknown=0, NotChecked=0, Total=930 [2018-11-23 07:26:30,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2018-11-23 07:26:30,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 129. [2018-11-23 07:26:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-11-23 07:26:30,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2018-11-23 07:26:30,633 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 172 transitions. Word has length 28 [2018-11-23 07:26:30,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:26:30,633 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 172 transitions. [2018-11-23 07:26:30,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 07:26:30,634 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 172 transitions. [2018-11-23 07:26:30,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 07:26:30,634 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:26:30,634 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:26:30,634 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:26:30,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:26:30,635 INFO L82 PathProgramCache]: Analyzing trace with hash -164852029, now seen corresponding path program 2 times [2018-11-23 07:26:30,635 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:26:30,635 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 28 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 28 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:26:30,648 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 07:26:30,711 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 07:26:30,711 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:26:30,724 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:26:30,740 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:26:30,740 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:30,769 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:26:30,771 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:26:30,772 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:30,774 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:30,788 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:26:30,790 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:26:30,790 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:30,792 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:30,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:30,799 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:32, output treesize:23 [2018-11-23 07:26:30,837 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:26:30,850 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:26:30,851 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:26:30,851 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,119 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 07:26:31,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:26:31,128 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,152 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 07:26:31,285 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:26:31,285 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,309 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 07:26:31,391 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:26:31,392 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,399 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,432 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2018-11-23 07:26:31,434 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:26:31,435 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,442 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,456 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,456 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 6 variables, input treesize:88, output treesize:41 [2018-11-23 07:26:31,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2018-11-23 07:26:31,526 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-23 07:26:31,526 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,536 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 07:26:31,536 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,541 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,552 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 07:26:31,554 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:26:31,554 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,559 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2018-11-23 07:26:31,560 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,561 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,564 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:31,564 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:68, output treesize:7 [2018-11-23 07:26:31,584 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:26:31,584 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:26:32,726 WARN L180 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2018-11-23 07:26:32,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:32,744 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:32,745 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:32,763 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:33,231 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:33,247 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:33,247 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:33,264 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:33,265 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:33,281 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:33,510 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:33,524 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:33,524 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:33,531 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:33,532 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:33,541 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:33,695 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:33,706 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:33,707 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:33,719 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:33,845 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: 8 dim-0 vars, and 5 xjuncts. [2018-11-23 07:26:33,846 INFO L202 ElimStorePlain]: Needed 21 recursive calls to eliminate 6 variables, input treesize:109, output treesize:115 [2018-11-23 07:26:52,040 WARN L180 SmtUtils]: Spent 16.13 s on a formula simplification that was a NOOP. DAG size: 72 [2018-11-23 07:26:52,181 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2018-11-23 07:26:52,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2018-11-23 07:26:52,184 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,231 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2018-11-23 07:26:52,231 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-11-23 07:26:52,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:26:52,286 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,294 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:26:52,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 07:26:52,296 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,298 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,302 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,327 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2018-11-23 07:26:52,339 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:26:52,339 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,350 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:26:52,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 07:26:52,352 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,354 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,358 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:26:52,369 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 10 variables, input treesize:89, output treesize:7 [2018-11-23 07:26:52,373 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:26:52,375 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:26:52,375 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:26:52,381 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 07:26:52,400 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 07:26:52,400 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:26:52,403 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:26:52,407 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:26:52,407 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,429 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:26:52,431 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:26:52,431 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,434 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,445 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:26:52,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:26:52,447 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,449 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,454 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:52,454 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:29, output treesize:20 [2018-11-23 07:26:54,514 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:26:54,531 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:26:54,532 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:26:54,532 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:54,811 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 07:26:54,820 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:26:54,820 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:54,845 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:54,965 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 07:26:54,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:26:54,971 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:54,992 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,069 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 07:26:55,073 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 07:26:55,073 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,082 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,112 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 07:26:55,115 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:26:55,115 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,123 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,138 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,138 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:85, output treesize:39 [2018-11-23 07:26:55,284 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49 [2018-11-23 07:26:55,287 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-11-23 07:26:55,287 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:55,301 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:26:55,301 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,310 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:55,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 07:26:55,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2018-11-23 07:26:55,326 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,331 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:26:55,332 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,333 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,336 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:55,336 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:69, output treesize:7 [2018-11-23 07:26:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:26:55,338 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:26:56,107 WARN L180 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2018-11-23 07:26:56,109 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:56,132 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:56,133 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:56,169 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:56,170 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:56,205 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:56,206 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:56,231 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:57,338 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:57,354 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:57,354 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:57,366 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:57,367 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:57,383 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:57,383 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:57,392 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:58,035 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:58,058 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:58,059 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:58,089 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:58,090 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:58,117 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:26:58,575 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:58,590 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:58,590 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:58,598 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:58,599 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:26:58,608 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:26:58,856 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 15 dim-0 vars, and 7 xjuncts. [2018-11-23 07:26:58,856 INFO L202 ElimStorePlain]: Needed 29 recursive calls to eliminate 8 variables, input treesize:125, output treesize:156 [2018-11-23 07:27:13,965 WARN L180 SmtUtils]: Spent 10.10 s on a formula simplification. DAG size of input: 96 DAG size of output: 44 [2018-11-23 07:27:14,148 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-11-23 07:27:14,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2018-11-23 07:27:14,152 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:14,213 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2018-11-23 07:27:14,213 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:14,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2018-11-23 07:27:14,312 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:27:14,312 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:14,322 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:27:14,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 07:27:14,324 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:14,326 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:14,330 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:14,366 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2018-11-23 07:27:14,399 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:27:14,399 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:14,409 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 07:27:14,411 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 07:27:14,411 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:14,413 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:14,417 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:14,428 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 07:27:14,428 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 14 variables, input treesize:93, output treesize:7 [2018-11-23 07:27:14,432 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:27:14,450 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:27:14,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8] total 17 [2018-11-23 07:27:14,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 07:27:14,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 07:27:14,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=223, Unknown=4, NotChecked=0, Total=272 [2018-11-23 07:27:14,451 INFO L87 Difference]: Start difference. First operand 129 states and 172 transitions. Second operand 17 states. [2018-11-23 07:27:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:27:15,593 INFO L93 Difference]: Finished difference Result 195 states and 255 transitions. [2018-11-23 07:27:15,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:27:15,593 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 29 [2018-11-23 07:27:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:27:15,593 INFO L225 Difference]: With dead ends: 195 [2018-11-23 07:27:15,593 INFO L226 Difference]: Without dead ends: 157 [2018-11-23 07:27:15,594 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 35.8s TimeCoverageRelationStatistics Valid=67, Invalid=309, Unknown=4, NotChecked=0, Total=380 [2018-11-23 07:27:15,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-11-23 07:27:15,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-11-23 07:27:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-11-23 07:27:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 208 transitions. [2018-11-23 07:27:15,658 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 208 transitions. Word has length 29 [2018-11-23 07:27:15,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:27:15,659 INFO L480 AbstractCegarLoop]: Abstraction has 157 states and 208 transitions. [2018-11-23 07:27:15,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 07:27:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 208 transitions. [2018-11-23 07:27:15,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 07:27:15,659 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:27:15,659 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:27:15,659 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:27:15,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:27:15,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1371432875, now seen corresponding path program 1 times [2018-11-23 07:27:15,660 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:27:15,660 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 30 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 30 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:27:15,675 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:27:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:27:15,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:27:15,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:27:15,776 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:15,804 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:27:15,808 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:27:15,812 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:15,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:27:15,816 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:15,821 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:15,824 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:15,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:15,837 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:39, output treesize:18 [2018-11-23 07:27:15,887 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:15,894 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:15,895 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:27:15,895 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,104 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-11-23 07:27:16,110 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:27:16,119 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:16,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:27:16,127 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,145 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,169 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,255 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:27:16,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:27:16,260 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,265 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,318 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:27:16,322 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:27:16,322 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,327 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,366 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:79, output treesize:46 [2018-11-23 07:27:16,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:27:16,519 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:27:16,519 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,523 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,544 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:27:16,547 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-11-23 07:27:16,548 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,551 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:16,566 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:48, output treesize:26 [2018-11-23 07:27:16,615 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:16,620 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:16,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-11-23 07:27:16,636 INFO L478 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 16 treesize of output 19 [2018-11-23 07:27:16,637 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 07:27:16,660 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:27:16,661 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,670 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:16,680 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:16,680 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:30, output treesize:8 [2018-11-23 07:27:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 07:27:16,725 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:27:17,047 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:17,067 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:17,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:17,092 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:48, output treesize:52 [2018-11-23 07:27:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 07:27:17,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:27:17,335 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:27:17,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:27:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:27:17,405 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:27:17,409 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:27:17,409 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,434 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:27:17,437 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:27:17,441 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:17,443 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:27:17,444 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,448 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,451 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,462 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:39, output treesize:18 [2018-11-23 07:27:17,479 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:17,485 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:17,486 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 07:27:17,486 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,623 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:27:17,630 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:27:17,630 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,641 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,766 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2018-11-23 07:27:17,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:27:17,779 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:17,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:27:17,785 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,799 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,817 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:27:17,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:27:17,880 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,885 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:17,927 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:76, output treesize:43 [2018-11-23 07:27:18,336 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:27:18,340 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:27:18,341 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:18,346 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:18,377 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-23 07:27:18,381 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-11-23 07:27:18,381 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:18,393 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:18,419 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:18,420 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:60, output treesize:34 [2018-11-23 07:27:18,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2018-11-23 07:27:18,638 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 07:27:18,638 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:18,652 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 07:27:18,652 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:18,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:18,669 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:18,669 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:38, output treesize:8 [2018-11-23 07:27:18,758 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 07:27:18,758 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:27:18,761 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:18,781 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:18,814 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:18,814 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:54, output treesize:62 [2018-11-23 07:27:21,373 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 07:27:21,392 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:27:21,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9] total 22 [2018-11-23 07:27:21,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-23 07:27:21,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-23 07:27:21,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=396, Unknown=1, NotChecked=0, Total=462 [2018-11-23 07:27:21,393 INFO L87 Difference]: Start difference. First operand 157 states and 208 transitions. Second operand 22 states. [2018-11-23 07:27:23,457 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-11-23 07:27:26,437 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2018-11-23 07:27:29,479 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2018-11-23 07:27:30,571 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-11-23 07:27:33,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:27:33,362 INFO L93 Difference]: Finished difference Result 264 states and 325 transitions. [2018-11-23 07:27:33,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-23 07:27:33,364 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 32 [2018-11-23 07:27:33,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:27:33,365 INFO L225 Difference]: With dead ends: 264 [2018-11-23 07:27:33,365 INFO L226 Difference]: Without dead ends: 262 [2018-11-23 07:27:33,366 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=226, Invalid=960, Unknown=4, NotChecked=0, Total=1190 [2018-11-23 07:27:33,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-11-23 07:27:33,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 110. [2018-11-23 07:27:33,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-11-23 07:27:33,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 141 transitions. [2018-11-23 07:27:33,425 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 141 transitions. Word has length 32 [2018-11-23 07:27:33,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:27:33,425 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 141 transitions. [2018-11-23 07:27:33,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-23 07:27:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 141 transitions. [2018-11-23 07:27:33,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 07:27:33,426 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:27:33,426 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:27:33,426 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:27:33,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:27:33,426 INFO L82 PathProgramCache]: Analyzing trace with hash -825545829, now seen corresponding path program 3 times [2018-11-23 07:27:33,426 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 07:27:33,427 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/cvc4nyu Starting monitored process 32 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 32 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 07:27:33,440 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-23 07:27:33,624 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 07:27:33,624 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:27:33,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:27:33,650 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:27:33,650 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:33,683 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:27:33,685 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:27:33,690 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:33,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:27:33,694 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:33,700 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:33,703 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:33,715 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:33,715 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-11-23 07:27:33,750 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:33,763 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:33,763 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:27:33,764 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:33,901 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:27:33,906 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:27:33,906 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:33,915 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:33,991 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:27:33,996 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:27:33,996 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:34,002 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:34,065 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2018-11-23 07:27:34,069 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:27:34,075 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:34,079 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:27:34,080 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:34,091 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:34,104 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:34,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:34,135 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:66, output treesize:42 [2018-11-23 07:27:34,199 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:34,222 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:34,223 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 07:27:34,224 INFO L478 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 21 treesize of output 21 [2018-11-23 07:27:34,224 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:35,068 INFO L303 Elim1Store]: Index analysis took 174 ms [2018-11-23 07:27:35,068 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 07:27:35,086 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-11-23 07:27:35,086 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:35,140 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:35,512 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 07:27:35,525 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:27:35,525 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:35,571 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:35,808 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2018-11-23 07:27:35,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-11-23 07:27:35,816 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:35,855 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,002 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 40 [2018-11-23 07:27:36,007 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:27:36,007 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,040 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 37 [2018-11-23 07:27:36,150 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:27:36,160 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:27:36,166 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:27:36,166 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,178 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,192 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,248 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 9 variables, input treesize:136, output treesize:88 [2018-11-23 07:27:36,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 90 [2018-11-23 07:27:36,684 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2018-11-23 07:27:36,685 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:36,720 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 07:27:36,720 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,743 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:36,777 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 45 [2018-11-23 07:27:36,782 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 07:27:36,782 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,798 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2018-11-23 07:27:36,798 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,809 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,822 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:36,822 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:121, output treesize:27 [2018-11-23 07:27:36,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-23 07:27:36,887 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 6 [2018-11-23 07:27:36,888 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,898 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 07:27:36,898 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,901 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,908 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:36,908 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:31, output treesize:4 [2018-11-23 07:27:36,955 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:27:36,955 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:27:38,164 WARN L180 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2018-11-23 07:27:38,166 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,204 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,205 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,236 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,412 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,441 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,442 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,483 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,641 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,675 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,676 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,730 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:38,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 10 dim-0 vars, and 2 xjuncts. [2018-11-23 07:27:38,911 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 5 variables, input treesize:103, output treesize:157 [2018-11-23 07:27:44,371 WARN L180 SmtUtils]: Spent 3.08 s on a formula simplification that was a NOOP. DAG size: 76 [2018-11-23 07:27:48,749 WARN L180 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 134 DAG size of output: 133 [2018-11-23 07:27:48,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 134 [2018-11-23 07:27:49,048 WARN L180 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2018-11-23 07:27:49,057 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:27:49,058 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:49,161 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 62 [2018-11-23 07:27:49,170 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 52 [2018-11-23 07:27:49,170 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:49,198 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:49,279 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:49,300 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 129 [2018-11-23 07:27:49,543 WARN L180 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2018-11-23 07:27:49,555 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:27:49,555 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:49,660 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:27:49,673 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:27:49,673 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:49,687 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:49,776 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:52,762 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 132 [2018-11-23 07:27:53,042 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-11-23 07:27:53,055 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:27:53,055 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:53,169 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-11-23 07:27:53,176 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2018-11-23 07:27:53,177 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:53,187 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:53,295 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:53,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 153 [2018-11-23 07:27:53,681 WARN L180 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-11-23 07:27:53,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:27:53,694 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:53,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 57 [2018-11-23 07:27:53,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 48 [2018-11-23 07:27:53,848 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:53,861 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:53,987 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:55,871 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:55,921 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:55,922 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:56,006 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:57,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 127 [2018-11-23 07:27:57,484 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-11-23 07:27:57,490 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:27:57,491 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:57,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-23 07:27:57,566 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 50 [2018-11-23 07:27:57,567 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:57,591 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:57,643 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:57,652 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 122 [2018-11-23 07:27:57,768 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2018-11-23 07:27:57,773 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:27:57,773 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:57,818 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:27:57,824 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:27:57,824 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:57,831 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:57,867 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:58,641 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:58,711 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:58,712 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:58,764 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:27:59,212 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 112 [2018-11-23 07:27:59,395 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-11-23 07:27:59,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:27:59,402 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:59,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 55 [2018-11-23 07:27:59,485 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 46 [2018-11-23 07:27:59,485 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:59,494 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:59,535 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:59,548 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 119 [2018-11-23 07:27:59,663 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-11-23 07:27:59,670 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:27:59,670 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:59,717 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2018-11-23 07:27:59,726 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 52 [2018-11-23 07:27:59,726 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 07:27:59,732 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:27:59,758 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:00,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 6 dim-2 vars, End of recursive call: 26 dim-0 vars, and 4 xjuncts. [2018-11-23 07:28:00,153 INFO L202 ElimStorePlain]: Needed 41 recursive calls to eliminate 22 variables, input treesize:281, output treesize:377 [2018-11-23 07:28:12,916 WARN L180 SmtUtils]: Spent 8.18 s on a formula simplification that was a NOOP. DAG size: 131 [2018-11-23 07:28:23,348 WARN L180 SmtUtils]: Spent 8.20 s on a formula simplification that was a NOOP. DAG size: 135 [2018-11-23 07:28:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:28:23,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:28:23,405 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1926395a-a016-464d-af90-724e0580bb70/bin-2019/utaipan/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:28:23,412 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 07:28:23,988 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 07:28:23,988 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:28:23,993 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:28:23,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 07:28:23,998 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,037 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2018-11-23 07:28:24,040 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:28:24,046 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:24,049 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:28:24,049 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,056 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,058 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,073 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,073 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-11-23 07:28:24,277 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:24,285 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:24,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 07:28:24,287 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:28:24,486 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:28:24,486 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,496 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2018-11-23 07:28:24,634 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:28:24,642 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:24,647 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 07:28:24,647 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,658 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,675 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,728 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 07:28:24,731 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:28:24,732 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,736 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,776 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:24,777 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:85, output treesize:64 [2018-11-23 07:28:25,140 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:25,157 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:25,175 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:25,190 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:25,191 INFO L303 Elim1Store]: Index analysis took 106 ms [2018-11-23 07:28:25,191 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 07:28:25,192 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:26,188 INFO L303 Elim1Store]: Index analysis took 260 ms [2018-11-23 07:28:26,189 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2018-11-23 07:28:26,217 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-11-23 07:28:26,217 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:26,341 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:26,725 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2018-11-23 07:28:26,745 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:28:26,746 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:26,827 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:27,091 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:27,118 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:27,203 INFO L303 Elim1Store]: Index analysis took 155 ms [2018-11-23 07:28:27,204 INFO L478 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 47 treesize of output 84 [2018-11-23 07:28:27,215 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 07:28:27,233 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:27,242 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-11-23 07:28:27,243 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:27,268 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:27,323 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:27,503 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 07:28:27,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-11-23 07:28:27,516 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:27,538 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:27,642 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2018-11-23 07:28:27,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 07:28:27,653 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:27,676 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:27,744 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:27,744 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 8 variables, input treesize:139, output treesize:83 [2018-11-23 07:28:29,994 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2018-11-23 07:28:30,009 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-23 07:28:30,009 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:30,051 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 29 [2018-11-23 07:28:30,052 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:30,086 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:28:30,193 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 50 [2018-11-23 07:28:30,205 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 07:28:30,206 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:30,238 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-23 07:28:30,238 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:30,260 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:30,309 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:30,310 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:141, output treesize:42 [2018-11-23 07:28:32,076 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:32,081 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 07:28:32,087 INFO L478 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 36 treesize of output 42 [2018-11-23 07:28:32,122 INFO L478 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 07:28:32,123 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-23 07:28:32,232 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2018-11-23 07:28:32,232 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 07:28:32,239 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 8 [2018-11-23 07:28:32,240 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:32,311 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 07:28:32,311 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 07:28:32,342 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 07:28:32,385 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 07:28:32,385 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:44, output treesize:17 [2018-11-23 07:28:32,658 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:28:32,658 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 07:28:35,269 WARN L180 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2018-11-23 07:28:35,271 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:35,324 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:35,325 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:35,389 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:35,730 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:35,802 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:35,803 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:35,847 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:36,154 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:36,288 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:36,289 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:36,387 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:28:36,874 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 12 dim-0 vars, and 2 xjuncts. [2018-11-23 07:28:36,874 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:132, output treesize:257 [2018-11-23 07:28:45,704 WARN L180 SmtUtils]: Spent 3.17 s on a formula simplification that was a NOOP. DAG size: 85 [2018-11-23 07:28:59,267 WARN L180 SmtUtils]: Spent 10.82 s on a formula simplification that was a NOOP. DAG size: 91 [2018-11-23 07:29:03,828 WARN L180 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 154 DAG size of output: 142 [2018-11-23 07:29:03,850 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 173 [2018-11-23 07:29:04,168 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2018-11-23 07:29:04,176 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:29:04,176 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:04,315 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:29:04,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:29:04,324 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:04,335 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:04,454 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:04,483 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 178 [2018-11-23 07:29:04,822 WARN L180 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2018-11-23 07:29:04,831 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:29:04,831 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:04,972 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 68 [2018-11-23 07:29:04,982 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 58 [2018-11-23 07:29:04,982 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:05,013 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:05,149 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:07,709 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 175 [2018-11-23 07:29:08,095 WARN L180 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2018-11-23 07:29:08,113 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:29:08,113 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:08,269 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 68 [2018-11-23 07:29:08,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 58 [2018-11-23 07:29:08,279 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:08,314 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:08,458 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:08,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 170 [2018-11-23 07:29:08,802 WARN L180 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2018-11-23 07:29:08,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:29:08,811 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:08,953 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 07:29:08,962 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 07:29:08,962 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:08,976 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:09,097 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:10,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 134 [2018-11-23 07:29:11,032 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2018-11-23 07:29:11,045 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:29:11,045 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:11,161 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2018-11-23 07:29:11,177 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-23 07:29:11,177 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:11,188 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:11,280 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:11,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 143 [2018-11-23 07:29:11,536 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2018-11-23 07:29:11,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:29:11,543 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:11,646 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-11-23 07:29:11,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2018-11-23 07:29:11,653 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:11,663 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:11,742 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:13,284 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 131 [2018-11-23 07:29:13,509 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2018-11-23 07:29:13,518 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:29:13,518 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:13,621 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2018-11-23 07:29:13,630 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2018-11-23 07:29:13,630 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:13,640 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:13,730 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:13,748 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 140 [2018-11-23 07:29:13,970 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2018-11-23 07:29:13,977 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 07:29:13,977 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:14,072 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2018-11-23 07:29:14,079 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2018-11-23 07:29:14,080 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 07:29:14,090 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:14,164 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 07:29:15,061 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:29:15,120 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:29:15,121 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:29:15,203 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:29:15,952 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:29:16,004 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:29:16,005 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:29:16,083 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 07:29:16,756 INFO L267 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 6 dim-2 vars, End of recursive call: 26 dim-0 vars, and 4 xjuncts. [2018-11-23 07:29:16,756 INFO L202 ElimStorePlain]: Needed 41 recursive calls to eliminate 22 variables, input treesize:389, output treesize:597 [2018-11-23 07:29:28,672 WARN L180 SmtUtils]: Spent 8.11 s on a formula simplification that was a NOOP. DAG size: 148 [2018-11-23 07:29:40,568 WARN L180 SmtUtils]: Spent 8.17 s on a formula simplification that was a NOOP. DAG size: 152 [2018-11-23 07:29:52,903 WARN L180 SmtUtils]: Spent 8.19 s on a formula simplification that was a NOOP. DAG size: 151 [2018-11-23 07:29:52,949 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:29:52,969 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 07:29:52,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 17, 17] total 49 [2018-11-23 07:29:52,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-11-23 07:29:52,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-11-23 07:29:52,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=2144, Unknown=8, NotChecked=0, Total=2352 [2018-11-23 07:29:52,970 INFO L87 Difference]: Start difference. First operand 110 states and 141 transitions. Second operand 49 states. [2018-11-23 07:30:02,016 WARN L180 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2018-11-23 07:30:21,457 WARN L180 SmtUtils]: Spent 16.31 s on a formula simplification. DAG size of input: 289 DAG size of output: 167 [2018-11-23 07:30:28,287 WARN L180 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2018-11-23 07:30:33,072 WARN L180 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 88 [2018-11-23 07:30:53,030 WARN L180 SmtUtils]: Spent 12.72 s on a formula simplification. DAG size of input: 182 DAG size of output: 111 [2018-11-23 07:31:05,589 WARN L180 SmtUtils]: Spent 5.58 s on a formula simplification. DAG size of input: 122 DAG size of output: 84 [2018-11-23 07:31:12,556 WARN L180 SmtUtils]: Spent 6.50 s on a formula simplification. DAG size of input: 118 DAG size of output: 80 [2018-11-23 07:31:43,625 WARN L180 SmtUtils]: Spent 14.91 s on a formula simplification. DAG size of input: 129 DAG size of output: 83 [2018-11-23 07:31:46,179 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2018-11-23 07:31:50,609 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-23 07:31:50,610 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:651) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:255) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:270) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:715) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:628) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-11-23 07:31:50,613 INFO L168 Benchmark]: Toolchain (without parser) took 536575.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 944.4 MB in the beginning and 911.6 MB in the end (delta: 32.7 MB). Peak memory consumption was 250.8 MB. Max. memory is 11.5 GB. [2018-11-23 07:31:50,614 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:31:50,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-11-23 07:31:50,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.36 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. [2018-11-23 07:31:50,614 INFO L168 Benchmark]: Boogie Preprocessor took 25.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:31:50,614 INFO L168 Benchmark]: RCFGBuilder took 236.11 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: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2018-11-23 07:31:50,614 INFO L168 Benchmark]: TraceAbstraction took 535902.07 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.5 MB). Free memory was 1.1 GB in the beginning and 911.6 MB in the end (delta: 175.0 MB). Peak memory consumption was 261.5 MB. Max. memory is 11.5 GB. [2018-11-23 07:31:50,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 385.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.36 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 25.04 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 236.11 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: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 535902.07 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.5 MB). Free memory was 1.1 GB in the beginning and 911.6 MB in the end (delta: 175.0 MB). Peak memory consumption was 261.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...