./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31978db89ae521f3f75fa608730a1f5cd4ee8ad4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31978db89ae521f3f75fa608730a1f5cd4ee8ad4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store (store (store v_arrayElimCell_52 main_~head~0.offset |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) (bvadd v_main_~x~0.offset_22 (_ bv8 32)) v_DerPreprocessor_8) --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 23:31:09,697 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:31:09,698 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:31:09,704 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:31:09,704 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:31:09,705 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:31:09,706 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:31:09,707 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:31:09,708 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:31:09,708 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:31:09,709 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:31:09,709 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:31:09,710 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:31:09,710 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:31:09,711 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:31:09,711 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:31:09,712 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:31:09,713 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:31:09,714 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:31:09,715 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:31:09,716 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:31:09,717 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:31:09,718 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:31:09,718 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:31:09,719 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:31:09,719 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:31:09,720 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:31:09,720 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:31:09,720 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:31:09,721 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:31:09,721 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:31:09,721 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:31:09,721 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:31:09,721 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:31:09,722 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:31:09,722 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:31:09,722 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-22 23:31:09,729 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:31:09,729 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:31:09,730 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 23:31:09,730 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 23:31:09,730 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 23:31:09,730 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 23:31:09,731 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 23:31:09,731 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:31:09,731 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 23:31:09,731 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 23:31:09,731 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 23:31:09,731 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:31:09,731 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 23:31:09,731 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 23:31:09,732 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 23:31:09,732 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 23:31:09,732 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 23:31:09,732 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:31:09,732 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 23:31:09,732 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:31:09,732 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 23:31:09,733 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 23:31:09,733 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 23:31:09,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 23:31:09,733 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:31:09,733 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 23:31:09,733 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 23:31:09,733 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 23:31:09,733 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 23:31:09,734 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 23:31:09,734 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_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer 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 -> Automizer 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 -> 31978db89ae521f3f75fa608730a1f5cd4ee8ad4 [2018-11-22 23:31:09,759 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:31:09,767 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:31:09,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:31:09,770 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:31:09,771 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:31:09,771 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-22 23:31:09,808 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/data/fbfd84956/3c4fb7615c8e4b0aacdaf978a6973a7f/FLAGc3bb7d01d [2018-11-22 23:31:10,248 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:31:10,248 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-22 23:31:10,257 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/data/fbfd84956/3c4fb7615c8e4b0aacdaf978a6973a7f/FLAGc3bb7d01d [2018-11-22 23:31:10,268 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/data/fbfd84956/3c4fb7615c8e4b0aacdaf978a6973a7f [2018-11-22 23:31:10,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:31:10,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 23:31:10,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:31:10,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:31:10,276 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:31:10,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e1a27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10, skipping insertion in model container [2018-11-22 23:31:10,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:31:10,316 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:31:10,517 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:31:10,522 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:31:10,592 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:31:10,615 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:31:10,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10 WrapperNode [2018-11-22 23:31:10,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:31:10,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 23:31:10,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 23:31:10,616 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 23:31:10,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 23:31:10,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:31:10,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:31:10,638 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:31:10,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (1/1) ... [2018-11-22 23:31:10,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:31:10,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:31:10,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:31:10,661 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:31:10,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 23:31:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-22 23:31:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-22 23:31:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 23:31:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 23:31:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 23:31:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 23:31:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-22 23:31:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-22 23:31:10,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 23:31:10,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:31:10,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:31:10,954 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:31:10,954 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-22 23:31:10,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:31:10 BoogieIcfgContainer [2018-11-22 23:31:10,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:31:10,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 23:31:10,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 23:31:10,957 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 23:31:10,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:31:10" (1/3) ... [2018-11-22 23:31:10,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a64e2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:31:10, skipping insertion in model container [2018-11-22 23:31:10,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:31:10" (2/3) ... [2018-11-22 23:31:10,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a64e2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:31:10, skipping insertion in model container [2018-11-22 23:31:10,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:31:10" (3/3) ... [2018-11-22 23:31:10,959 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-22 23:31:10,965 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 23:31:10,969 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 23:31:10,977 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 23:31:10,994 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 23:31:10,994 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 23:31:10,994 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 23:31:10,994 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 23:31:10,994 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 23:31:10,995 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 23:31:10,995 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 23:31:10,995 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 23:31:10,995 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 23:31:11,005 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-11-22 23:31:11,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-22 23:31:11,010 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:11,011 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:11,012 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:11,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:11,017 INFO L82 PathProgramCache]: Analyzing trace with hash -233588477, now seen corresponding path program 1 times [2018-11-22 23:31:11,019 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:11,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:11,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:11,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:11,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:11,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:11,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:31:11,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 23:31:11,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-22 23:31:11,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-22 23:31:11,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 23:31:11,130 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2018-11-22 23:31:11,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:11,143 INFO L93 Difference]: Finished difference Result 57 states and 83 transitions. [2018-11-22 23:31:11,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-22 23:31:11,144 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-22 23:31:11,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:11,150 INFO L225 Difference]: With dead ends: 57 [2018-11-22 23:31:11,150 INFO L226 Difference]: Without dead ends: 26 [2018-11-22 23:31:11,152 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 [2018-11-22 23:31:11,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-22 23:31:11,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-22 23:31:11,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-22 23:31:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2018-11-22 23:31:11,176 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 19 [2018-11-22 23:31:11,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:11,177 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-22 23:31:11,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-22 23:31:11,177 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-11-22 23:31:11,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-22 23:31:11,177 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:11,177 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:11,177 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:11,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:11,178 INFO L82 PathProgramCache]: Analyzing trace with hash -361078066, now seen corresponding path program 1 times [2018-11-22 23:31:11,178 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:11,178 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:11,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:11,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:11,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:11,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:11,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:31:11,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 23:31:11,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 23:31:11,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 23:31:11,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:31:11,240 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand 3 states. [2018-11-22 23:31:11,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:11,252 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2018-11-22 23:31:11,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 23:31:11,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-22 23:31:11,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:11,253 INFO L225 Difference]: With dead ends: 29 [2018-11-22 23:31:11,253 INFO L226 Difference]: Without dead ends: 27 [2018-11-22 23:31:11,254 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:31:11,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-22 23:31:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-22 23:31:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-22 23:31:11,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2018-11-22 23:31:11,257 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 20 [2018-11-22 23:31:11,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:11,257 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-22 23:31:11,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 23:31:11,257 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2018-11-22 23:31:11,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-22 23:31:11,257 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:11,258 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:11,258 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:11,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:11,258 INFO L82 PathProgramCache]: Analyzing trace with hash -361076144, now seen corresponding path program 1 times [2018-11-22 23:31:11,258 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:11,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:11,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:11,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:11,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:11,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:31:11,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 23:31:11,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 23:31:11,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 23:31:11,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-22 23:31:11,526 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 7 states. [2018-11-22 23:31:11,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:11,814 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2018-11-22 23:31:11,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 23:31:11,814 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-22 23:31:11,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:11,815 INFO L225 Difference]: With dead ends: 73 [2018-11-22 23:31:11,815 INFO L226 Difference]: Without dead ends: 60 [2018-11-22 23:31:11,816 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-22 23:31:11,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-22 23:31:11,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 38. [2018-11-22 23:31:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-22 23:31:11,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2018-11-22 23:31:11,820 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 20 [2018-11-22 23:31:11,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:11,821 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2018-11-22 23:31:11,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 23:31:11,821 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2018-11-22 23:31:11,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-22 23:31:11,821 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:11,822 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:11,822 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:11,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:11,822 INFO L82 PathProgramCache]: Analyzing trace with hash -359229102, now seen corresponding path program 1 times [2018-11-22 23:31:11,822 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:11,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:11,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:11,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:11,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:11,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:31:11,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:31:11,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:31:11,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:31:11,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:31:11,910 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand 6 states. [2018-11-22 23:31:12,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:12,010 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2018-11-22 23:31:12,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 23:31:12,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-22 23:31:12,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:12,011 INFO L225 Difference]: With dead ends: 59 [2018-11-22 23:31:12,011 INFO L226 Difference]: Without dead ends: 57 [2018-11-22 23:31:12,012 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:31:12,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-22 23:31:12,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2018-11-22 23:31:12,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-22 23:31:12,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2018-11-22 23:31:12,017 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 20 [2018-11-22 23:31:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:12,017 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2018-11-22 23:31:12,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:31:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2018-11-22 23:31:12,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-22 23:31:12,018 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:12,018 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:12,018 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:12,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:12,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1415778260, now seen corresponding path program 1 times [2018-11-22 23:31:12,019 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:12,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:12,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:12,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:12,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:12,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:12,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:31:12,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:31:12,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:31:12,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:31:12,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:31:12,066 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand 6 states. [2018-11-22 23:31:12,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:12,191 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2018-11-22 23:31:12,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 23:31:12,192 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-22 23:31:12,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:12,192 INFO L225 Difference]: With dead ends: 85 [2018-11-22 23:31:12,192 INFO L226 Difference]: Without dead ends: 64 [2018-11-22 23:31:12,193 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:31:12,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-22 23:31:12,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2018-11-22 23:31:12,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-22 23:31:12,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2018-11-22 23:31:12,199 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 20 [2018-11-22 23:31:12,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:12,199 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2018-11-22 23:31:12,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:31:12,199 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2018-11-22 23:31:12,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 23:31:12,200 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:12,200 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:12,200 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:12,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:12,201 INFO L82 PathProgramCache]: Analyzing trace with hash -167626761, now seen corresponding path program 1 times [2018-11-22 23:31:12,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:12,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:12,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:12,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:12,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:12,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:12,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:31:12,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:31:12,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:31:12,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:31:12,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:31:12,264 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. Second operand 6 states. [2018-11-22 23:31:12,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:12,411 INFO L93 Difference]: Finished difference Result 109 states and 142 transitions. [2018-11-22 23:31:12,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-22 23:31:12,411 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-22 23:31:12,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:12,412 INFO L225 Difference]: With dead ends: 109 [2018-11-22 23:31:12,412 INFO L226 Difference]: Without dead ends: 92 [2018-11-22 23:31:12,412 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-11-22 23:31:12,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-11-22 23:31:12,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 50. [2018-11-22 23:31:12,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-22 23:31:12,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2018-11-22 23:31:12,420 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 21 [2018-11-22 23:31:12,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:12,420 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2018-11-22 23:31:12,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:31:12,421 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2018-11-22 23:31:12,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 23:31:12,421 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:12,421 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:12,422 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:12,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:12,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1609227643, now seen corresponding path program 1 times [2018-11-22 23:31:12,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:12,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:12,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:12,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:12,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:12,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:31:12,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:31:12,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:31:12,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:31:12,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:31:12,531 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand 6 states. [2018-11-22 23:31:12,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:12,661 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2018-11-22 23:31:12,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 23:31:12,662 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-22 23:31:12,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:12,665 INFO L225 Difference]: With dead ends: 83 [2018-11-22 23:31:12,666 INFO L226 Difference]: Without dead ends: 81 [2018-11-22 23:31:12,666 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:31:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-11-22 23:31:12,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 50. [2018-11-22 23:31:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-22 23:31:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2018-11-22 23:31:12,672 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 21 [2018-11-22 23:31:12,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:12,672 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2018-11-22 23:31:12,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:31:12,672 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2018-11-22 23:31:12,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-22 23:31:12,673 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:12,673 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:12,673 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:12,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:12,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1311284775, now seen corresponding path program 1 times [2018-11-22 23:31:12,674 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:12,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:12,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:12,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:12,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:12,950 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:31:12,950 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:12,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:13,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:31:13,053 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:13,054 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,058 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,058 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:31:13,075 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,076 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,077 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 [2018-11-22 23:31:13,077 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,096 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 31 treesize of output 22 [2018-11-22 23:31:13,099 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-22 23:31:13,099 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,113 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 21 treesize of output 22 [2018-11-22 23:31:13,118 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-22 23:31:13,118 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,124 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,127 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,140 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 31 treesize of output 22 [2018-11-22 23:31:13,142 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-22 23:31:13,142 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,150 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 21 treesize of output 28 [2018-11-22 23:31:13,153 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 19 [2018-11-22 23:31:13,153 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,157 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,161 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,171 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:82, output treesize:68 [2018-11-22 23:31:13,216 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,217 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,218 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 52 [2018-11-22 23:31:13,219 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,256 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 82 [2018-11-22 23:31:13,261 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 83 [2018-11-22 23:31:13,262 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,284 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 88 treesize of output 92 [2018-11-22 23:31:13,287 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:13,287 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,298 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,306 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,335 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 64 [2018-11-22 23:31:13,342 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,345 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 43 treesize of output 52 [2018-11-22 23:31:13,346 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,359 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 57 treesize of output 82 [2018-11-22 23:31:13,361 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 11 [2018-11-22 23:31:13,362 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,369 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,373 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,391 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:13,391 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:136, output treesize:115 [2018-11-22 23:31:13,446 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,449 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,451 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,454 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,455 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 55 [2018-11-22 23:31:13,455 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,536 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 100 [2018-11-22 23:31:13,540 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,544 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 30 treesize of output 18 [2018-11-22 23:31:13,544 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,562 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,618 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:13,622 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:13,683 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 188 [2018-11-22 23:31:13,689 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,692 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:31:13,697 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,699 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,700 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,707 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:31:13,707 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,721 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,781 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 194 [2018-11-22 23:31:13,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:13,785 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,817 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,841 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,886 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 101 [2018-11-22 23:31:13,889 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:13,891 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 31 [2018-11-22 23:31:13,891 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 135 [2018-11-22 23:31:13,921 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 18 treesize of output 27 [2018-11-22 23:31:13,922 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,936 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,943 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:13,970 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:13,970 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 9 variables, input treesize:285, output treesize:205 [2018-11-22 23:31:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:14,133 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:31:14,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-11-22 23:31:14,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-22 23:31:14,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-22 23:31:14,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-11-22 23:31:14,134 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand 18 states. [2018-11-22 23:31:21,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:21,615 INFO L93 Difference]: Finished difference Result 179 states and 227 transitions. [2018-11-22 23:31:21,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-22 23:31:21,615 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 23 [2018-11-22 23:31:21,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:21,616 INFO L225 Difference]: With dead ends: 179 [2018-11-22 23:31:21,616 INFO L226 Difference]: Without dead ends: 162 [2018-11-22 23:31:21,616 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2018-11-22 23:31:21,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-11-22 23:31:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 58. [2018-11-22 23:31:21,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-22 23:31:21,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 75 transitions. [2018-11-22 23:31:21,625 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 75 transitions. Word has length 23 [2018-11-22 23:31:21,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:21,625 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 75 transitions. [2018-11-22 23:31:21,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-22 23:31:21,625 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2018-11-22 23:31:21,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-22 23:31:21,625 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:21,625 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:21,625 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:21,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:21,626 INFO L82 PathProgramCache]: Analyzing trace with hash 465569629, now seen corresponding path program 1 times [2018-11-22 23:31:21,626 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:21,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:21,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:21,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:21,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:21,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:21,752 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:31:21,752 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:21,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:21,773 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:31:21,776 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 [2018-11-22 23:31:21,776 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,778 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,778 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:31:21,783 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,783 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,784 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 [2018-11-22 23:31:21,784 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,793 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:21,795 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:21,807 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 45 treesize of output 31 [2018-11-22 23:31:21,808 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 15 treesize of output 18 [2018-11-22 23:31:21,810 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,811 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 27 [2018-11-22 23:31:21,811 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,814 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,822 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 34 treesize of output 35 [2018-11-22 23:31:21,823 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-22 23:31:21,824 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,827 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,830 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,835 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:21,836 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:59, output treesize:27 [2018-11-22 23:31:21,863 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,863 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,864 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-22 23:31:21,865 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,880 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-11-22 23:31:21,885 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,887 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 [2018-11-22 23:31:21,888 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,890 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,903 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 25 treesize of output 26 [2018-11-22 23:31:21,905 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-22 23:31:21,905 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,907 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,914 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:21,915 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:68, output treesize:40 [2018-11-22 23:31:21,934 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,937 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,941 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,945 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,945 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2018-11-22 23:31:21,946 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,963 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 35 [2018-11-22 23:31:21,965 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-22 23:31:21,967 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:21,968 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-22 23:31:21,968 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,971 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,974 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,989 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2018-11-22 23:31:21,991 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-22 23:31:21,991 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:21,995 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,004 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:22,004 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:84, output treesize:26 [2018-11-22 23:31:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:22,068 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:31:22,068 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-11-22 23:31:22,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-22 23:31:22,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-22 23:31:22,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-11-22 23:31:22,069 INFO L87 Difference]: Start difference. First operand 58 states and 75 transitions. Second operand 15 states. [2018-11-22 23:31:22,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:22,385 INFO L93 Difference]: Finished difference Result 129 states and 163 transitions. [2018-11-22 23:31:22,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-22 23:31:22,386 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 23 [2018-11-22 23:31:22,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:22,387 INFO L225 Difference]: With dead ends: 129 [2018-11-22 23:31:22,387 INFO L226 Difference]: Without dead ends: 112 [2018-11-22 23:31:22,387 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2018-11-22 23:31:22,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-11-22 23:31:22,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 52. [2018-11-22 23:31:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-22 23:31:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2018-11-22 23:31:22,395 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 23 [2018-11-22 23:31:22,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:22,395 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2018-11-22 23:31:22,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-22 23:31:22,395 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2018-11-22 23:31:22,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-22 23:31:22,396 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:22,396 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:22,396 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:22,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:22,398 INFO L82 PathProgramCache]: Analyzing trace with hash -2106827054, now seen corresponding path program 1 times [2018-11-22 23:31:22,398 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:22,398 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:22,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:22,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:22,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:22,623 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:31:22,623 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:22,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:22,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:31:22,647 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:22,647 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,650 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:31:22,671 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-22 23:31:22,673 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-22 23:31:22,673 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,674 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-22 23:31:22,681 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-22 23:31:22,681 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,682 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,686 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:35, output treesize:27 [2018-11-22 23:31:22,713 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,714 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,715 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 [2018-11-22 23:31:22,715 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,735 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 27 [2018-11-22 23:31:22,738 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,738 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-11-22 23:31:22,739 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,750 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 [2018-11-22 23:31:22,752 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-22 23:31:22,752 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,757 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,761 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,775 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 27 [2018-11-22 23:31:22,777 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,778 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 16 treesize of output 23 [2018-11-22 23:31:22,779 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,786 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 [2018-11-22 23:31:22,788 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 11 [2018-11-22 23:31:22,788 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,792 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,798 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,810 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,810 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:92, output treesize:61 [2018-11-22 23:31:22,836 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,839 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,840 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,840 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 [2018-11-22 23:31:22,841 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,888 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:22,892 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:22,935 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 153 [2018-11-22 23:31:22,940 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:31:22,946 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,947 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,948 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:22,953 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:31:22,953 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:22,966 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:23,000 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 163 treesize of output 159 [2018-11-22 23:31:23,003 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:23,003 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:23,026 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:23,048 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:23,088 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 52 treesize of output 47 [2018-11-22 23:31:23,091 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:23,093 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 30 treesize of output 18 [2018-11-22 23:31:23,093 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:23,100 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:23,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 48 [2018-11-22 23:31:23,125 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:23,127 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 31 [2018-11-22 23:31:23,127 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:23,140 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 45 treesize of output 72 [2018-11-22 23:31:23,142 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-11-22 23:31:23,142 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:23,149 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:23,154 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:23,170 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:23,170 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 8 variables, input treesize:227, output treesize:138 [2018-11-22 23:31:23,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:23,249 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:31:23,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-11-22 23:31:23,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-22 23:31:23,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-22 23:31:23,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=247, Unknown=1, NotChecked=0, Total=306 [2018-11-22 23:31:23,250 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand 18 states. [2018-11-22 23:31:32,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:32,576 INFO L93 Difference]: Finished difference Result 216 states and 277 transitions. [2018-11-22 23:31:32,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-22 23:31:32,576 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 24 [2018-11-22 23:31:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:32,577 INFO L225 Difference]: With dead ends: 216 [2018-11-22 23:31:32,577 INFO L226 Difference]: Without dead ends: 199 [2018-11-22 23:31:32,578 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=415, Invalid=1475, Unknown=2, NotChecked=0, Total=1892 [2018-11-22 23:31:32,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2018-11-22 23:31:32,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 55. [2018-11-22 23:31:32,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-22 23:31:32,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 71 transitions. [2018-11-22 23:31:32,586 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 71 transitions. Word has length 24 [2018-11-22 23:31:32,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:32,587 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 71 transitions. [2018-11-22 23:31:32,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-22 23:31:32,587 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 71 transitions. [2018-11-22 23:31:32,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-22 23:31:32,588 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:32,588 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:32,588 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:32,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:32,588 INFO L82 PathProgramCache]: Analyzing trace with hash -329972650, now seen corresponding path program 1 times [2018-11-22 23:31:32,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:32,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:32,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:32,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:32,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:32,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:32,848 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:31:32,848 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:32,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:32,888 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:31:32,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:32,891 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:32,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:32,896 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:31:32,912 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-22 23:31:32,914 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-22 23:31:32,915 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:32,917 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:32,928 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-22 23:31:32,931 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 10 treesize of output 9 [2018-11-22 23:31:32,931 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:32,934 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:32,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:32,943 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:35, output treesize:27 [2018-11-22 23:31:32,983 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:32,985 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:32,985 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 [2018-11-22 23:31:32,986 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,012 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 27 [2018-11-22 23:31:33,016 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,017 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 [2018-11-22 23:31:33,017 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,035 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 [2018-11-22 23:31:33,038 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:33,038 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,045 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,050 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,066 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 27 [2018-11-22 23:31:33,068 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,069 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 [2018-11-22 23:31:33,069 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,078 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 [2018-11-22 23:31:33,080 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 11 [2018-11-22 23:31:33,080 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,085 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,090 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,104 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,105 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:92, output treesize:61 [2018-11-22 23:31:33,137 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,138 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,149 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,150 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 [2018-11-22 23:31:33,150 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,200 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:33,204 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:33,238 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:33,242 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:33,283 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 132 [2018-11-22 23:31:33,287 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,289 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:31:33,293 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,295 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,296 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,300 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:31:33,300 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,311 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,342 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 142 treesize of output 138 [2018-11-22 23:31:33,345 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:33,345 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,371 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,389 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,438 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 53 [2018-11-22 23:31:33,440 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,449 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:31:33,452 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,465 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,466 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:33,469 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:31:33,469 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,477 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,494 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 58 treesize of output 85 [2018-11-22 23:31:33,496 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 18 treesize of output 27 [2018-11-22 23:31:33,496 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,507 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,516 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:33,536 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:33,536 INFO L202 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:227, output treesize:138 [2018-11-22 23:31:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:33,631 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:31:33,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-11-22 23:31:33,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-22 23:31:33,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-22 23:31:33,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=159, Unknown=1, NotChecked=0, Total=210 [2018-11-22 23:31:33,632 INFO L87 Difference]: Start difference. First operand 55 states and 71 transitions. Second operand 15 states. [2018-11-22 23:31:42,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:42,823 INFO L93 Difference]: Finished difference Result 175 states and 221 transitions. [2018-11-22 23:31:42,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-22 23:31:42,823 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2018-11-22 23:31:42,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:42,824 INFO L225 Difference]: With dead ends: 175 [2018-11-22 23:31:42,824 INFO L226 Difference]: Without dead ends: 173 [2018-11-22 23:31:42,825 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=211, Invalid=599, Unknown=2, NotChecked=0, Total=812 [2018-11-22 23:31:42,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-11-22 23:31:42,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 49. [2018-11-22 23:31:42,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-22 23:31:42,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2018-11-22 23:31:42,832 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 24 [2018-11-22 23:31:42,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:42,832 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2018-11-22 23:31:42,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-22 23:31:42,832 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2018-11-22 23:31:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-22 23:31:42,835 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:42,836 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, 1, 1, 1, 1] [2018-11-22 23:31:42,837 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:42,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:42,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1111458133, now seen corresponding path program 1 times [2018-11-22 23:31:42,837 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:42,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:42,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:42,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:42,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:42,895 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:31:42,895 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:42,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:42,939 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:31:42,941 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:42,942 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:42,958 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 [2018-11-22 23:31:42,960 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 8 treesize of output 7 [2018-11-22 23:31:42,960 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:42,962 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:42,969 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 [2018-11-22 23:31:42,970 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:42,970 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:42,972 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:42,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:42,978 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:32, output treesize:23 [2018-11-22 23:31:42,991 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:42,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:42,993 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-22 23:31:42,993 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,032 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 27 treesize of output 22 [2018-11-22 23:31:43,036 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,039 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-11-22 23:31:43,039 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,047 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,070 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:43,073 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:43,097 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 39 treesize of output 27 [2018-11-22 23:31:43,099 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,101 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 [2018-11-22 23:31:43,102 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,116 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 [2018-11-22 23:31:43,118 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 13 [2018-11-22 23:31:43,118 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,125 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,131 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,147 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 49 treesize of output 32 [2018-11-22 23:31:43,149 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 29 [2018-11-22 23:31:43,153 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,154 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,154 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,157 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 46 [2018-11-22 23:31:43,158 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,164 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,174 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2018-11-22 23:31:43,176 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 8 treesize of output 13 [2018-11-22 23:31:43,176 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,182 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,187 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,198 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. [2018-11-22 23:31:43,198 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 7 variables, input treesize:128, output treesize:66 [2018-11-22 23:31:43,228 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 53 treesize of output 44 [2018-11-22 23:31:43,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-11-22 23:31:43,230 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,237 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 30 treesize of output 19 [2018-11-22 23:31:43,237 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:43,241 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:43,248 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 [2018-11-22 23:31:43,250 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 [2018-11-22 23:31:43,250 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,254 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 [2018-11-22 23:31:43,254 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,255 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,259 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:67, output treesize:7 [2018-11-22 23:31:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:43,280 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:31:43,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-11-22 23:31:43,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 23:31:43,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 23:31:43,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:31:43,281 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand 9 states. [2018-11-22 23:31:43,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:43,491 INFO L93 Difference]: Finished difference Result 96 states and 120 transitions. [2018-11-22 23:31:43,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-22 23:31:43,491 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-22 23:31:43,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:43,491 INFO L225 Difference]: With dead ends: 96 [2018-11-22 23:31:43,492 INFO L226 Difference]: Without dead ends: 53 [2018-11-22 23:31:43,492 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-11-22 23:31:43,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-22 23:31:43,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-11-22 23:31:43,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-22 23:31:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2018-11-22 23:31:43,499 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 30 [2018-11-22 23:31:43,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:43,499 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2018-11-22 23:31:43,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 23:31:43,499 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2018-11-22 23:31:43,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-22 23:31:43,500 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:43,500 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:43,500 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:43,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:43,500 INFO L82 PathProgramCache]: Analyzing trace with hash -579378786, now seen corresponding path program 1 times [2018-11-22 23:31:43,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:43,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:43,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:43,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:43,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:43,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:31:43,738 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:43,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:43,774 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:31:43,793 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:43,793 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,798 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,799 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:31:43,806 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,806 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,807 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 [2018-11-22 23:31:43,807 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,811 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:43,812 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:18 [2018-11-22 23:31:43,841 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,842 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,844 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,845 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-22 23:31:43,845 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,866 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:31:43,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2018-11-22 23:31:43,870 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,881 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 19 treesize of output 20 [2018-11-22 23:31:43,883 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:43,883 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,888 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,893 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,915 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:31:43,917 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-22 23:31:43,917 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,924 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 19 treesize of output 24 [2018-11-22 23:31:43,926 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 11 [2018-11-22 23:31:43,926 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,930 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,933 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:43,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:43,948 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:86, output treesize:66 [2018-11-22 23:31:43,981 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,983 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,985 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,987 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:43,987 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 37 [2018-11-22 23:31:43,988 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,057 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 187 treesize of output 177 [2018-11-22 23:31:44,064 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2018-11-22 23:31:44,064 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,090 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,137 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:44,141 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:44,177 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 68 treesize of output 47 [2018-11-22 23:31:44,180 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-22 23:31:44,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 34 [2018-11-22 23:31:44,184 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,190 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,207 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 69 [2018-11-22 23:31:44,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:44,211 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,221 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,228 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,253 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 89 [2018-11-22 23:31:44,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 23 [2018-11-22 23:31:44,258 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,277 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 91 [2018-11-22 23:31:44,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-11-22 23:31:44,280 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,295 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,309 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:44,330 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. [2018-11-22 23:31:44,330 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 7 variables, input treesize:217, output treesize:110 [2018-11-22 23:31:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:44,540 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:31:44,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 20 [2018-11-22 23:31:44,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-22 23:31:44,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-22 23:31:44,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-11-22 23:31:44,541 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand 20 states. [2018-11-22 23:31:46,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:46,188 INFO L93 Difference]: Finished difference Result 225 states and 282 transitions. [2018-11-22 23:31:46,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-22 23:31:46,188 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 33 [2018-11-22 23:31:46,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:46,189 INFO L225 Difference]: With dead ends: 225 [2018-11-22 23:31:46,189 INFO L226 Difference]: Without dead ends: 208 [2018-11-22 23:31:46,190 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=557, Invalid=2199, Unknown=0, NotChecked=0, Total=2756 [2018-11-22 23:31:46,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-11-22 23:31:46,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 105. [2018-11-22 23:31:46,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-11-22 23:31:46,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2018-11-22 23:31:46,211 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 134 transitions. Word has length 33 [2018-11-22 23:31:46,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:46,211 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 134 transitions. [2018-11-22 23:31:46,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-22 23:31:46,211 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 134 transitions. [2018-11-22 23:31:46,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-22 23:31:46,212 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:46,212 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:46,212 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:46,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:46,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1197475618, now seen corresponding path program 1 times [2018-11-22 23:31:46,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:46,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:46,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:46,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:46,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:46,395 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:46,395 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:31:46,395 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:46,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:46,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:31:46,445 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-22 23:31:46,445 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,462 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:31:46,467 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:46,467 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:46,468 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 [2018-11-22 23:31:46,468 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,474 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:46,474 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:18 [2018-11-22 23:31:46,512 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:46,513 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:46,514 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:46,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-22 23:31:46,515 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,544 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:31:46,546 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2018-11-22 23:31:46,546 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,558 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-22 23:31:46,562 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 8 treesize of output 7 [2018-11-22 23:31:46,562 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,569 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,573 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,593 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:31:46,595 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:46,595 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,603 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 19 treesize of output 24 [2018-11-22 23:31:46,604 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 11 [2018-11-22 23:31:46,605 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,609 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,612 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,625 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:46,625 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:86, output treesize:66 [2018-11-22 23:31:46,658 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:46,663 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:46,668 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:46,672 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:46,672 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 37 [2018-11-22 23:31:46,673 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,780 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2018-11-22 23:31:46,788 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2018-11-22 23:31:46,788 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,802 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,869 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:46,873 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:46,949 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 62 treesize of output 44 [2018-11-22 23:31:46,952 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 23 [2018-11-22 23:31:46,953 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:46,984 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 58 [2018-11-22 23:31:46,987 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:46,987 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,000 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,012 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,056 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:47,060 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:47,101 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 134 [2018-11-22 23:31:47,105 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-22 23:31:47,112 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 34 [2018-11-22 23:31:47,112 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,120 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 140 [2018-11-22 23:31:47,152 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-11-22 23:31:47,152 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,170 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,187 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 31 [2018-11-22 23:31:47,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-22 23:31:47,220 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 23 [2018-11-22 23:31:47,221 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,224 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,234 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 51 [2018-11-22 23:31:47,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-22 23:31:47,236 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,241 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,244 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,266 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 9 variables, input treesize:262, output treesize:121 [2018-11-22 23:31:47,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 77 [2018-11-22 23:31:47,330 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 18 [2018-11-22 23:31:47,330 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:47,341 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 30 [2018-11-22 23:31:47,341 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,348 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:47,359 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 36 treesize of output 38 [2018-11-22 23:31:47,361 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 [2018-11-22 23:31:47,362 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,365 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:47,369 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:132, output treesize:11 [2018-11-22 23:31:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:47,418 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:31:47,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 17 [2018-11-22 23:31:47,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-22 23:31:47,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-22 23:31:47,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2018-11-22 23:31:47,419 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. Second operand 17 states. [2018-11-22 23:31:48,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:48,351 INFO L93 Difference]: Finished difference Result 221 states and 281 transitions. [2018-11-22 23:31:48,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-22 23:31:48,351 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 33 [2018-11-22 23:31:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:48,352 INFO L225 Difference]: With dead ends: 221 [2018-11-22 23:31:48,352 INFO L226 Difference]: Without dead ends: 189 [2018-11-22 23:31:48,353 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2018-11-22 23:31:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-11-22 23:31:48,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 109. [2018-11-22 23:31:48,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-11-22 23:31:48,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 137 transitions. [2018-11-22 23:31:48,368 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 137 transitions. Word has length 33 [2018-11-22 23:31:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:48,368 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 137 transitions. [2018-11-22 23:31:48,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-22 23:31:48,368 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 137 transitions. [2018-11-22 23:31:48,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-22 23:31:48,368 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:48,368 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:48,369 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:48,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:48,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1647181409, now seen corresponding path program 1 times [2018-11-22 23:31:48,369 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:48,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:48,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:48,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:48,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:48,522 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:31:48,522 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:48,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:48,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:31:48,546 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 6 treesize of output 5 [2018-11-22 23:31:48,546 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,547 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-22 23:31:48,554 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:48,555 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:48,555 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 [2018-11-22 23:31:48,555 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,559 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:48,559 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-11-22 23:31:48,611 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:48,612 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:48,613 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:48,614 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-22 23:31:48,614 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,628 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:31:48,630 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2018-11-22 23:31:48,630 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,638 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 19 treesize of output 20 [2018-11-22 23:31:48,640 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:48,640 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,644 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,647 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,657 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:31:48,659 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:48,659 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,665 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 19 treesize of output 24 [2018-11-22 23:31:48,666 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-22 23:31:48,667 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,670 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,673 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,680 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,680 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:77, output treesize:44 [2018-11-22 23:31:48,695 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:48,699 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:48,722 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 97 [2018-11-22 23:31:48,725 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 27 [2018-11-22 23:31:48,732 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2018-11-22 23:31:48,732 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,737 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,748 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,760 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:48,762 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:48,773 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 45 treesize of output 40 [2018-11-22 23:31:48,775 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:48,777 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 35 [2018-11-22 23:31:48,778 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:48,780 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 54 [2018-11-22 23:31:48,780 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,785 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,790 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,798 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:48,799 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 4 variables, input treesize:138, output treesize:68 [2018-11-22 23:31:48,857 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:48,872 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:31:48,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-11-22 23:31:48,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-22 23:31:48,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-22 23:31:48,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=228, Unknown=1, NotChecked=0, Total=272 [2018-11-22 23:31:48,873 INFO L87 Difference]: Start difference. First operand 109 states and 137 transitions. Second operand 17 states. [2018-11-22 23:31:49,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:49,839 INFO L93 Difference]: Finished difference Result 205 states and 258 transitions. [2018-11-22 23:31:49,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-22 23:31:49,840 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 34 [2018-11-22 23:31:49,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:49,840 INFO L225 Difference]: With dead ends: 205 [2018-11-22 23:31:49,840 INFO L226 Difference]: Without dead ends: 203 [2018-11-22 23:31:49,841 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=925, Unknown=1, NotChecked=0, Total=1190 [2018-11-22 23:31:49,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-11-22 23:31:49,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 144. [2018-11-22 23:31:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-11-22 23:31:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2018-11-22 23:31:49,862 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 182 transitions. Word has length 34 [2018-11-22 23:31:49,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:49,863 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 182 transitions. [2018-11-22 23:31:49,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-22 23:31:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 182 transitions. [2018-11-22 23:31:49,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-22 23:31:49,863 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:49,863 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:49,863 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:49,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:49,864 INFO L82 PathProgramCache]: Analyzing trace with hash -925585227, now seen corresponding path program 2 times [2018-11-22 23:31:49,864 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:49,864 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:49,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:49,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:31:49,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:50,304 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:50,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:31:50,304 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:50,312 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-22 23:31:50,344 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-22 23:31:50,344 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-22 23:31:50,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:31:50,351 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 6 treesize of output 5 [2018-11-22 23:31:50,351 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,355 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,355 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:31:50,359 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,361 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,361 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 [2018-11-22 23:31:50,361 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:50,367 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:18 [2018-11-22 23:31:50,419 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,420 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,422 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,422 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-22 23:31:50,422 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,450 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:31:50,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:50,453 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,463 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 19 treesize of output 20 [2018-11-22 23:31:50,465 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:50,465 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,470 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,474 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,497 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:31:50,499 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2018-11-22 23:31:50,499 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,507 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 19 treesize of output 20 [2018-11-22 23:31:50,509 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:50,509 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,513 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,516 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,533 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:50,533 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:86, output treesize:62 [2018-11-22 23:31:50,576 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,579 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,581 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,584 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,584 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 59 [2018-11-22 23:31:50,585 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,748 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 42 [2018-11-22 23:31:50,753 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,758 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-11-22 23:31:50,759 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,779 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,889 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 37 [2018-11-22 23:31:50,894 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,897 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 37 [2018-11-22 23:31:50,897 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,909 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:50,976 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 66 treesize of output 58 [2018-11-22 23:31:50,980 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:50,982 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-22 23:31:50,982 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,008 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 64 [2018-11-22 23:31:51,011 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:51,012 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,028 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,038 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,103 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2018-11-22 23:31:51,114 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,115 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 31 [2018-11-22 23:31:51,115 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,130 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 66 [2018-11-22 23:31:51,133 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 14 treesize of output 13 [2018-11-22 23:31:51,133 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,141 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,147 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,173 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:51,174 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 7 variables, input treesize:173, output treesize:150 [2018-11-22 23:31:51,231 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,233 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,235 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,236 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,238 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,239 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 132 [2018-11-22 23:31:51,239 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,317 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,325 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 195 [2018-11-22 23:31:51,331 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 119 [2018-11-22 23:31:51,331 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,371 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,382 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 203 [2018-11-22 23:31:51,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:51,388 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,420 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,446 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,491 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,497 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 92 [2018-11-22 23:31:51,508 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-22 23:31:51,508 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,522 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,533 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 121 [2018-11-22 23:31:51,535 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:51,535 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,547 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,554 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,588 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:51,588 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:263, output treesize:202 [2018-11-22 23:31:51,652 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,657 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,661 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,666 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,669 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,673 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,676 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,677 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 161 [2018-11-22 23:31:51,677 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,816 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,820 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,850 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 424 treesize of output 328 [2018-11-22 23:31:51,856 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:51,860 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2018-11-22 23:31:51,860 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:51,938 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,027 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:52,058 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 155 [2018-11-22 23:31:52,062 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:52,066 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2018-11-22 23:31:52,066 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,091 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,164 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:52,187 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 152 [2018-11-22 23:31:52,191 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:52,191 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 39 [2018-11-22 23:31:52,191 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,219 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:52,247 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 194 [2018-11-22 23:31:52,250 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:52,251 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,282 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,295 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,359 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:52,361 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:52,374 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 292 treesize of output 217 [2018-11-22 23:31:52,377 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:52,378 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 39 [2018-11-22 23:31:52,378 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,416 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:52,420 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:52,433 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 219 [2018-11-22 23:31:52,436 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:52,436 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,467 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,494 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:52,531 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:52,531 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 8 variables, input treesize:460, output treesize:327 [2018-11-22 23:31:52,877 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:52,892 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:31:52,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2018-11-22 23:31:52,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-22 23:31:52,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-22 23:31:52,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2018-11-22 23:31:52,893 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. Second operand 24 states. [2018-11-22 23:31:58,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:31:58,458 INFO L93 Difference]: Finished difference Result 343 states and 429 transitions. [2018-11-22 23:31:58,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-22 23:31:58,458 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 36 [2018-11-22 23:31:58,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:31:58,459 INFO L225 Difference]: With dead ends: 343 [2018-11-22 23:31:58,459 INFO L226 Difference]: Without dead ends: 326 [2018-11-22 23:31:58,460 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=527, Invalid=2553, Unknown=0, NotChecked=0, Total=3080 [2018-11-22 23:31:58,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2018-11-22 23:31:58,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 178. [2018-11-22 23:31:58,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-22 23:31:58,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 229 transitions. [2018-11-22 23:31:58,487 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 229 transitions. Word has length 36 [2018-11-22 23:31:58,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:31:58,488 INFO L480 AbstractCegarLoop]: Abstraction has 178 states and 229 transitions. [2018-11-22 23:31:58,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-22 23:31:58,488 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 229 transitions. [2018-11-22 23:31:58,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-22 23:31:58,488 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:31:58,488 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:31:58,488 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:31:58,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:31:58,489 INFO L82 PathProgramCache]: Analyzing trace with hash 851269177, now seen corresponding path program 2 times [2018-11-22 23:31:58,489 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:31:58,489 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:31:58,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:58,490 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:31:58,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:31:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:31:58,730 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:31:58,730 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:31:58,730 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:31:58,738 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-22 23:31:58,773 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-22 23:31:58,773 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-22 23:31:58,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:31:58,779 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-22 23:31:58,779 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,786 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:31:58,790 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:58,791 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:58,791 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 [2018-11-22 23:31:58,791 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,797 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:58,797 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:18 [2018-11-22 23:31:58,829 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:58,831 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:58,832 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:58,832 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-22 23:31:58,832 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,860 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:31:58,862 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-22 23:31:58,862 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,873 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 19 treesize of output 20 [2018-11-22 23:31:58,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:58,875 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,880 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,884 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,900 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:31:58,902 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:58,902 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,908 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 19 treesize of output 24 [2018-11-22 23:31:58,909 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 11 [2018-11-22 23:31:58,910 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,913 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,916 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:58,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:58,928 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:86, output treesize:66 [2018-11-22 23:31:58,961 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:58,964 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:58,968 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:58,974 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:58,974 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 59 [2018-11-22 23:31:58,974 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,129 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:59,141 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:59,282 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-22 23:31:59,287 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 25 treesize of output 28 [2018-11-22 23:31:59,292 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,296 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 28 treesize of output 41 [2018-11-22 23:31:59,296 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,309 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,314 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,405 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:59,409 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:59,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 89 treesize of output 76 [2018-11-22 23:31:59,509 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,511 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 29 [2018-11-22 23:31:59,514 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,516 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,517 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,521 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 46 [2018-11-22 23:31:59,522 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,533 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,582 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 86 [2018-11-22 23:31:59,585 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:31:59,585 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,602 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,616 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2018-11-22 23:31:59,683 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,685 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:31:59,688 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,689 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,690 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:31:59,693 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,702 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,722 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 79 [2018-11-22 23:31:59,725 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 13 [2018-11-22 23:31:59,725 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,736 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,742 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,779 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 29 treesize of output 40 [2018-11-22 23:31:59,782 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17 [2018-11-22 23:31:59,782 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,786 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:31:59,815 INFO L202 ElimStorePlain]: Needed 21 recursive calls to eliminate 9 variables, input treesize:216, output treesize:163 [2018-11-22 23:31:59,861 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,864 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,866 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,870 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,874 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:31:59,874 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 140 [2018-11-22 23:31:59,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:31:59,993 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2018-11-22 23:31:59,999 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2018-11-22 23:31:59,999 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,003 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,098 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,101 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 259 treesize of output 206 [2018-11-22 23:32:00,107 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 119 [2018-11-22 23:32:00,108 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,150 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,157 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,166 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 214 [2018-11-22 23:32:00,168 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:00,169 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,201 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,230 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,293 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 40 [2018-11-22 23:32:00,295 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-22 23:32:00,295 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,299 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,340 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,345 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:32:00,345 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 92 [2018-11-22 23:32:00,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-22 23:32:00,348 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,360 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,368 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 121 [2018-11-22 23:32:00,370 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-11-22 23:32:00,370 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,381 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,387 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,418 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:00,418 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 6 variables, input treesize:316, output treesize:224 [2018-11-22 23:32:00,473 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,478 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,484 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,488 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,492 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,494 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,500 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,500 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 161 [2018-11-22 23:32:00,501 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,658 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:00,664 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:00,796 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:00,802 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:00,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 65 [2018-11-22 23:32:00,925 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2018-11-22 23:32:00,929 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:00,933 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 26 [2018-11-22 23:32:00,933 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,941 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:00,951 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,046 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,067 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,073 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 397 treesize of output 301 [2018-11-22 23:32:01,078 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,080 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 37 [2018-11-22 23:32:01,084 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,085 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,086 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,092 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 70 [2018-11-22 23:32:01,092 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,105 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,179 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,181 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,209 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 369 treesize of output 307 [2018-11-22 23:32:01,212 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:01,213 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,273 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,330 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,403 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,418 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 168 [2018-11-22 23:32:01,421 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,422 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 37 [2018-11-22 23:32:01,426 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,426 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,427 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,429 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 70 [2018-11-22 23:32:01,430 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,438 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,459 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,473 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 236 [2018-11-22 23:32:01,475 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 21 [2018-11-22 23:32:01,476 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,497 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,508 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,568 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 91 [2018-11-22 23:32:01,570 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 26 treesize of output 25 [2018-11-22 23:32:01,570 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,578 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:01,627 INFO L202 ElimStorePlain]: Needed 21 recursive calls to eliminate 10 variables, input treesize:541, output treesize:348 [2018-11-22 23:32:01,739 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,752 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,752 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 345 treesize of output 200 [2018-11-22 23:32:01,771 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 101 treesize of output 95 [2018-11-22 23:32:01,773 INFO L267 ElimStorePlain]: Start of recursive call 3: 8 dim-0 vars, End of recursive call: 8 dim-0 vars, and 3 xjuncts. [2018-11-22 23:32:01,851 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 102 [2018-11-22 23:32:01,851 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,859 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 118 [2018-11-22 23:32:01,859 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-22 23:32:01,862 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 110 [2018-11-22 23:32:01,863 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:01,957 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,959 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 111 [2018-11-22 23:32:01,959 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:01,961 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,962 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 107 [2018-11-22 23:32:01,963 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:01,965 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:01,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 111 [2018-11-22 23:32:01,967 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:02,047 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 9 dim-0 vars, and 3 xjuncts. [2018-11-22 23:32:02,137 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 111 [2018-11-22 23:32:02,140 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 [2018-11-22 23:32:02,140 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:02,158 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:02,159 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 13 treesize of output 6 [2018-11-22 23:32:02,159 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:02,172 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:02,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 103 [2018-11-22 23:32:02,187 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-11-22 23:32:02,188 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:02,205 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:02,205 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 13 treesize of output 6 [2018-11-22 23:32:02,206 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:02,219 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:02,226 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2018-11-22 23:32:02,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 [2018-11-22 23:32:02,230 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:02,246 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:02,247 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 13 treesize of output 6 [2018-11-22 23:32:02,247 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:02,260 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:02,301 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2018-11-22 23:32:02,302 INFO L202 ElimStorePlain]: Needed 18 recursive calls to eliminate 4 variables, input treesize:359, output treesize:73 [2018-11-22 23:32:02,368 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:32:02,383 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:32:02,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2018-11-22 23:32:02,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-22 23:32:02,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-22 23:32:02,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2018-11-22 23:32:02,384 INFO L87 Difference]: Start difference. First operand 178 states and 229 transitions. Second operand 22 states. [2018-11-22 23:32:03,545 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 107 [2018-11-22 23:32:04,737 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2018-11-22 23:32:04,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:32:04,869 INFO L93 Difference]: Finished difference Result 337 states and 427 transitions. [2018-11-22 23:32:04,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-22 23:32:04,869 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 36 [2018-11-22 23:32:04,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:32:04,870 INFO L225 Difference]: With dead ends: 337 [2018-11-22 23:32:04,870 INFO L226 Difference]: Without dead ends: 320 [2018-11-22 23:32:04,870 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=310, Invalid=1250, Unknown=0, NotChecked=0, Total=1560 [2018-11-22 23:32:04,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-11-22 23:32:04,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 187. [2018-11-22 23:32:04,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-11-22 23:32:04,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 243 transitions. [2018-11-22 23:32:04,902 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 243 transitions. Word has length 36 [2018-11-22 23:32:04,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:32:04,903 INFO L480 AbstractCegarLoop]: Abstraction has 187 states and 243 transitions. [2018-11-22 23:32:04,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-22 23:32:04,903 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 243 transitions. [2018-11-22 23:32:04,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-22 23:32:04,903 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:32:04,903 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:32:04,903 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:32:04,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:32:04,903 INFO L82 PathProgramCache]: Analyzing trace with hash 256638230, now seen corresponding path program 1 times [2018-11-22 23:32:04,904 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:32:04,904 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:32:04,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:32:04,904 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:32:04,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:32:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:32:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:32:05,152 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:32:05,152 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:32:05,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:32:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:32:05,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:32:05,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:05,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,202 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,202 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:32:05,207 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,208 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,209 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-11-22 23:32:05,209 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:05,214 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:18 [2018-11-22 23:32:05,254 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,256 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,258 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-22 23:32:05,259 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,288 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:32:05,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-22 23:32:05,290 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,302 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-22 23:32:05,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:05,305 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,310 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,315 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,337 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:32:05,339 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 8 treesize of output 7 [2018-11-22 23:32:05,339 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,349 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 19 treesize of output 24 [2018-11-22 23:32:05,351 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 12 treesize of output 11 [2018-11-22 23:32:05,351 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,356 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,361 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:05,377 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:86, output treesize:66 [2018-11-22 23:32:05,422 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 45 treesize of output 44 [2018-11-22 23:32:05,426 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,428 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-11-22 23:32:05,428 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,439 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,470 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:05,472 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:05,503 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 37 treesize of output 43 [2018-11-22 23:32:05,505 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,507 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:32:05,509 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,510 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,510 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,513 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:32:05,513 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,520 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,527 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,550 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 65 treesize of output 64 [2018-11-22 23:32:05,552 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,553 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-22 23:32:05,554 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,562 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,580 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:05,580 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:130, output treesize:88 [2018-11-22 23:32:05,614 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,615 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,616 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,618 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,618 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 67 [2018-11-22 23:32:05,619 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,668 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 73 treesize of output 49 [2018-11-22 23:32:05,673 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-22 23:32:05,673 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,691 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 58 [2018-11-22 23:32:05,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-11-22 23:32:05,694 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,703 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,710 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,742 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,743 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 105 [2018-11-22 23:32:05,748 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 39 [2018-11-22 23:32:05,748 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,763 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,766 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 101 [2018-11-22 23:32:05,789 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:05,789 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,803 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,812 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,832 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:05,832 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:195, output treesize:114 [2018-11-22 23:32:05,870 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,872 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,875 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,877 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,880 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,882 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:05,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 89 [2018-11-22 23:32:05,883 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:05,972 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,001 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 92 [2018-11-22 23:32:06,006 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,010 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2018-11-22 23:32:06,010 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,031 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,103 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 89 [2018-11-22 23:32:06,129 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,130 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 39 [2018-11-22 23:32:06,130 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,154 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,176 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 119 [2018-11-22 23:32:06,178 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:06,179 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,200 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,212 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,262 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,263 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,273 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 201 [2018-11-22 23:32:06,276 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2018-11-22 23:32:06,278 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,310 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,345 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,346 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 205 treesize of output 155 [2018-11-22 23:32:06,356 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 39 [2018-11-22 23:32:06,357 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,380 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,381 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:06,389 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 157 [2018-11-22 23:32:06,391 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 8 treesize of output 7 [2018-11-22 23:32:06,391 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,410 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,426 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:06,450 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:06,450 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 8 variables, input treesize:368, output treesize:220 [2018-11-22 23:32:06,621 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:32:06,635 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:32:06,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 22 [2018-11-22 23:32:06,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-22 23:32:06,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-22 23:32:06,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2018-11-22 23:32:06,636 INFO L87 Difference]: Start difference. First operand 187 states and 243 transitions. Second operand 22 states. [2018-11-22 23:32:12,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:32:12,797 INFO L93 Difference]: Finished difference Result 567 states and 719 transitions. [2018-11-22 23:32:12,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-11-22 23:32:12,797 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 37 [2018-11-22 23:32:12,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:32:12,798 INFO L225 Difference]: With dead ends: 567 [2018-11-22 23:32:12,799 INFO L226 Difference]: Without dead ends: 532 [2018-11-22 23:32:12,800 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1753 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=774, Invalid=4912, Unknown=14, NotChecked=0, Total=5700 [2018-11-22 23:32:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2018-11-22 23:32:12,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 262. [2018-11-22 23:32:12,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-11-22 23:32:12,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 337 transitions. [2018-11-22 23:32:12,853 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 337 transitions. Word has length 37 [2018-11-22 23:32:12,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:32:12,854 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 337 transitions. [2018-11-22 23:32:12,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-22 23:32:12,854 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 337 transitions. [2018-11-22 23:32:12,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-22 23:32:12,854 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:32:12,854 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:32:12,854 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:32:12,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:32:12,855 INFO L82 PathProgramCache]: Analyzing trace with hash 2033492634, now seen corresponding path program 1 times [2018-11-22 23:32:12,855 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:32:12,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:32:12,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:32:12,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:32:12,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:32:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:32:13,170 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:32:13,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:32:13,171 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:32:13,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:32:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:32:13,203 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:32:13,204 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:13,205 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,209 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,210 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:32:13,213 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,213 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,213 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 [2018-11-22 23:32:13,214 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,221 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:13,221 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:18 [2018-11-22 23:32:13,250 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,252 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,253 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,253 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-22 23:32:13,253 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,277 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:32:13,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-22 23:32:13,279 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,288 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 19 treesize of output 20 [2018-11-22 23:32:13,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:13,290 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,295 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,299 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,314 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-22 23:32:13,316 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 8 treesize of output 7 [2018-11-22 23:32:13,316 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,323 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-22 23:32:13,324 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-22 23:32:13,325 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,328 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,331 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,342 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:13,342 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:86, output treesize:66 [2018-11-22 23:32:13,366 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:13,368 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:13,398 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:13,400 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:13,427 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 43 [2018-11-22 23:32:13,429 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,430 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 29 [2018-11-22 23:32:13,432 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,433 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,434 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,436 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 46 [2018-11-22 23:32:13,437 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,443 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,450 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,474 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 37 treesize of output 43 [2018-11-22 23:32:13,476 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,477 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:32:13,479 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,480 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,480 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,482 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:32:13,482 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,488 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,494 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:13,511 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 5 variables, input treesize:130, output treesize:88 [2018-11-22 23:32:13,545 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,547 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,548 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,549 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,550 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 67 [2018-11-22 23:32:13,550 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,597 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,599 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 148 [2018-11-22 23:32:13,605 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 39 [2018-11-22 23:32:13,605 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,626 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,630 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,633 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 144 [2018-11-22 23:32:13,635 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-22 23:32:13,635 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,651 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,663 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,689 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,691 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:32:13,692 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 73 treesize of output 49 [2018-11-22 23:32:13,694 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-22 23:32:13,694 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,702 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,707 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 66 [2018-11-22 23:32:13,709 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:13,709 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,716 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,721 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:13,740 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:195, output treesize:133 [2018-11-22 23:32:13,781 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,783 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,787 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,790 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,793 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,796 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,797 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 89 [2018-11-22 23:32:13,797 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,876 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,894 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 103 [2018-11-22 23:32:13,899 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:13,901 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2018-11-22 23:32:13,902 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,920 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:13,974 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:13,978 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:14,026 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,037 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 100 [2018-11-22 23:32:14,041 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,041 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 39 [2018-11-22 23:32:14,041 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:14,062 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,075 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 130 [2018-11-22 23:32:14,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-22 23:32:14,078 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:14,095 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:14,106 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:14,144 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,146 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,152 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 171 [2018-11-22 23:32:14,155 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 37 [2018-11-22 23:32:14,159 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,160 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,160 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,163 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 70 [2018-11-22 23:32:14,163 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:14,170 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:14,195 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,196 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:14,203 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 177 [2018-11-22 23:32:14,205 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:14,205 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:14,227 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:14,245 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:14,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:14,273 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 8 variables, input treesize:379, output treesize:231 [2018-11-22 23:32:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:32:14,449 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-22 23:32:14,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 21 [2018-11-22 23:32:14,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-22 23:32:14,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-22 23:32:14,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2018-11-22 23:32:14,450 INFO L87 Difference]: Start difference. First operand 262 states and 337 transitions. Second operand 21 states. [2018-11-22 23:32:17,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:32:17,692 INFO L93 Difference]: Finished difference Result 393 states and 495 transitions. [2018-11-22 23:32:17,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-22 23:32:17,692 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 37 [2018-11-22 23:32:17,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:32:17,693 INFO L225 Difference]: With dead ends: 393 [2018-11-22 23:32:17,693 INFO L226 Difference]: Without dead ends: 391 [2018-11-22 23:32:17,693 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=405, Invalid=1947, Unknown=0, NotChecked=0, Total=2352 [2018-11-22 23:32:17,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2018-11-22 23:32:17,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 265. [2018-11-22 23:32:17,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-11-22 23:32:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 340 transitions. [2018-11-22 23:32:17,759 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 340 transitions. Word has length 37 [2018-11-22 23:32:17,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:32:17,760 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 340 transitions. [2018-11-22 23:32:17,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-22 23:32:17,760 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 340 transitions. [2018-11-22 23:32:17,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-22 23:32:17,761 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:32:17,761 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:32:17,761 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:32:17,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:32:17,761 INFO L82 PathProgramCache]: Analyzing trace with hash -262654535, now seen corresponding path program 1 times [2018-11-22 23:32:17,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:32:17,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:32:17,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:32:17,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:32:17,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:32:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:32:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-22 23:32:17,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:32:17,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 23:32:17,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 23:32:17,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 23:32:17,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 23:32:17,793 INFO L87 Difference]: Start difference. First operand 265 states and 340 transitions. Second operand 4 states. [2018-11-22 23:32:17,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:32:17,871 INFO L93 Difference]: Finished difference Result 376 states and 470 transitions. [2018-11-22 23:32:17,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 23:32:17,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2018-11-22 23:32:17,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:32:17,872 INFO L225 Difference]: With dead ends: 376 [2018-11-22 23:32:17,872 INFO L226 Difference]: Without dead ends: 281 [2018-11-22 23:32:17,873 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 [2018-11-22 23:32:17,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2018-11-22 23:32:17,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 271. [2018-11-22 23:32:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-11-22 23:32:17,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 338 transitions. [2018-11-22 23:32:17,927 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 338 transitions. Word has length 40 [2018-11-22 23:32:17,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:32:17,927 INFO L480 AbstractCegarLoop]: Abstraction has 271 states and 338 transitions. [2018-11-22 23:32:17,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 23:32:17,927 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 338 transitions. [2018-11-22 23:32:17,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-22 23:32:17,928 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:32:17,928 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:32:17,928 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:32:17,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:32:17,928 INFO L82 PathProgramCache]: Analyzing trace with hash -849460549, now seen corresponding path program 1 times [2018-11-22 23:32:17,928 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:32:17,928 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:32:17,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:32:17,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:32:17,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:32:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:32:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 23:32:18,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:32:18,215 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:32:18,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:32:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:32:18,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:32:18,274 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:18,274 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,285 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:32:18,290 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 24 treesize of output 21 [2018-11-22 23:32:18,291 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-22 23:32:18,292 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,301 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-22 23:32:18,301 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,303 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,308 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,308 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:33, output treesize:18 [2018-11-22 23:32:18,327 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,328 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,328 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 [2018-11-22 23:32:18,328 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,349 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 27 treesize of output 20 [2018-11-22 23:32:18,351 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 [2018-11-22 23:32:18,351 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,360 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 [2018-11-22 23:32:18,362 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 8 treesize of output 7 [2018-11-22 23:32:18,362 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,367 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,370 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,384 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:18,386 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:18,400 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 41 treesize of output 31 [2018-11-22 23:32:18,402 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,403 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-22 23:32:18,403 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,412 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 32 treesize of output 33 [2018-11-22 23:32:18,413 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-22 23:32:18,413 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,417 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,420 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,429 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 4 variables, input treesize:86, output treesize:41 [2018-11-22 23:32:18,450 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,451 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,453 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-22 23:32:18,454 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,509 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 33 [2018-11-22 23:32:18,513 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-11-22 23:32:18,516 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,525 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,558 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:18,562 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:18,605 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 38 [2018-11-22 23:32:18,608 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,610 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 [2018-11-22 23:32:18,610 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,632 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 35 treesize of output 44 [2018-11-22 23:32:18,635 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 13 [2018-11-22 23:32:18,635 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,646 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,654 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,681 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 44 [2018-11-22 23:32:18,683 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-22 23:32:18,686 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,687 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-11-22 23:32:18,687 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,692 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,705 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 52 [2018-11-22 23:32:18,707 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17 [2018-11-22 23:32:18,707 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,714 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,718 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:18,741 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 7 variables, input treesize:141, output treesize:76 [2018-11-22 23:32:18,771 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,773 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,775 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,776 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,777 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 51 [2018-11-22 23:32:18,777 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,844 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:32:18,845 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 60 [2018-11-22 23:32:18,848 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,851 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-11-22 23:32:18,852 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 60 [2018-11-22 23:32:18,881 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 11 [2018-11-22 23:32:18,881 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,894 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,901 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,934 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:18,936 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:18,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 44 [2018-11-22 23:32:18,974 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:18,975 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 [2018-11-22 23:32:18,975 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,990 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 50 [2018-11-22 23:32:18,992 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-22 23:32:18,992 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:18,999 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,003 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,028 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:19,028 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 7 variables, input treesize:147, output treesize:107 [2018-11-22 23:32:19,066 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,068 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,070 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,073 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,077 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,077 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 72 [2018-11-22 23:32:19,078 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,227 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:19,233 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:19,488 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,497 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 77 [2018-11-22 23:32:19,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 29 [2018-11-22 23:32:19,506 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,511 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2018-11-22 23:32:19,511 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,527 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,570 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,600 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 81 [2018-11-22 23:32:19,604 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-22 23:32:19,604 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,642 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,661 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,757 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:19,762 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:19,859 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,889 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 87 [2018-11-22 23:32:19,893 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,895 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 37 [2018-11-22 23:32:19,900 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,901 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,904 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:32:19,905 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,917 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,943 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:19,964 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 105 [2018-11-22 23:32:19,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:19,967 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:19,991 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,004 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,059 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-22 23:32:20,062 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-22 23:32:20,062 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,071 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-22 23:32:20,073 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 8 treesize of output 7 [2018-11-22 23:32:20,073 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,078 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,082 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 5 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:20,124 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 10 variables, input treesize:238, output treesize:198 [2018-11-22 23:32:20,185 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,190 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,194 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,199 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,204 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,208 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,213 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,214 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 81 [2018-11-22 23:32:20,214 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 71 [2018-11-22 23:32:20,394 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 70 [2018-11-22 23:32:20,394 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 85 [2018-11-22 23:32:20,445 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-22 23:32:20,445 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,468 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,490 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,583 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,586 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,587 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,594 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 13 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 67 [2018-11-22 23:32:20,608 INFO L478 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 35 [2018-11-22 23:32:20,609 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-22 23:32:20,628 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,697 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,705 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,712 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 74 [2018-11-22 23:32:20,714 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:32:20,715 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,728 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,783 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,798 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:32:20,799 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 133 [2018-11-22 23:32:20,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 34 [2018-11-22 23:32:20,802 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,824 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:20,841 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 149 [2018-11-22 23:32:20,843 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 12 treesize of output 11 [2018-11-22 23:32:20,843 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,866 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,875 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:20,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:20,921 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 9 variables, input treesize:266, output treesize:197 [2018-11-22 23:32:20,957 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:20,963 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:21,143 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:21,149 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:21,308 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:21,332 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:21,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 99 [2018-11-22 23:32:21,352 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 29 treesize of output 32 [2018-11-22 23:32:21,358 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:21,362 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 32 treesize of output 22 [2018-11-22 23:32:21,362 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:21,371 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:21,400 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:21,553 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 221 [2018-11-22 23:32:21,560 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:21,563 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:32:21,570 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:21,571 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:21,573 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:21,582 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:32:21,582 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:21,602 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:21,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 228 treesize of output 224 [2018-11-22 23:32:21,764 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-22 23:32:21,764 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:24,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 171 [2018-11-22 23:32:24,173 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:25,155 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:32:26,219 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 225 treesize of output 224 [2018-11-22 23:32:26,219 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:28,263 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:28,264 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:28,267 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:28,292 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 210 treesize of output 247 [2018-11-22 23:32:28,292 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-11-22 23:32:29,896 INFO L267 ElimStorePlain]: Start of recursive call 12: 8 dim-1 vars, End of recursive call: 2 dim-0 vars, and 5 xjuncts. [2018-11-22 23:32:30,686 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 5 xjuncts. [2018-11-22 23:32:31,568 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:31,574 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:31,575 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:31,594 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 243 [2018-11-22 23:32:31,611 INFO L478 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 70 [2018-11-22 23:32:31,611 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-22 23:32:31,677 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:31,680 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:31,683 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:31,696 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 274 [2018-11-22 23:32:31,699 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:32:31,701 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-22 23:32:31,701 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:31,754 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:31,760 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:31,776 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:31,853 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 264 treesize of output 435 [2018-11-22 23:32:31,853 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-22 23:32:31,887 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-22 23:32:31,887 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:33,331 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 292 treesize of output 309 [2018-11-22 23:32:33,331 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-11-22 23:32:37,962 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 270 [2018-11-22 23:32:37,963 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:38,401 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 288 treesize of output 305 [2018-11-22 23:32:38,402 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 2 xjuncts. [2018-11-22 23:32:38,990 INFO L267 ElimStorePlain]: Start of recursive call 22: 12 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-22 23:32:38,996 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:39,001 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:39,002 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:39,025 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 277 treesize of output 321 [2018-11-22 23:32:39,042 INFO L478 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 86 [2018-11-22 23:32:39,042 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-22 23:32:39,119 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:39,123 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:39,126 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:39,139 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 274 [2018-11-22 23:32:39,142 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:39,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 35 [2018-11-22 23:32:39,144 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:39,208 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:40,228 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,248 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 260 treesize of output 275 [2018-11-22 23:32:40,251 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,253 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:32:40,256 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,257 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,258 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:32:40,260 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:40,268 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:40,335 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,358 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 175 [2018-11-22 23:32:40,361 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,362 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,363 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,363 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,364 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:32:40,366 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 69 [2018-11-22 23:32:40,367 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:40,401 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:40,440 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:40,444 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,474 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 285 [2018-11-22 23:32:40,478 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,479 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:32:40,483 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,483 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,484 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,487 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:32:40,487 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:40,496 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:40,563 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:40,652 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 105 treesize of output 388 [2018-11-22 23:32:40,652 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2018-11-22 23:32:40,780 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 312 [2018-11-22 23:32:40,781 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:45,488 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:45,497 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 2 case distinctions, treesize of input 119 treesize of output 155 [2018-11-22 23:32:45,498 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-22 23:32:47,547 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 111 [2018-11-22 23:32:47,548 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:48,301 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:48,301 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:48,303 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:48,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 111 treesize of output 172 [2018-11-22 23:32:48,313 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 2 xjuncts. [2018-11-22 23:32:48,635 INFO L267 ElimStorePlain]: Start of recursive call 39: 16 dim-1 vars, End of recursive call: 1 dim-0 vars, and 5 xjuncts. [2018-11-22 23:32:48,785 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 5 xjuncts. [2018-11-22 23:32:48,789 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:48,825 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 316 [2018-11-22 23:32:48,828 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:48,830 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:32:48,833 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:48,834 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:48,835 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:48,838 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:32:48,839 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:48,848 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:48,922 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:48,942 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:32:48,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 213 [2018-11-22 23:32:48,946 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 54 [2018-11-22 23:32:48,946 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:48,981 INFO L267 ElimStorePlain]: Start of recursive call 47: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,033 INFO L267 ElimStorePlain]: Start of recursive call 44: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,036 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,037 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,065 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 313 treesize of output 342 [2018-11-22 23:32:49,068 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,070 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:32:49,073 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,074 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,075 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,077 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:32:49,077 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,087 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,155 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,178 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 219 [2018-11-22 23:32:49,182 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,182 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,183 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,185 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 95 [2018-11-22 23:32:49,185 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,221 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,266 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,269 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,291 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 273 treesize of output 288 [2018-11-22 23:32:49,294 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:32:49,299 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,300 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,300 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,302 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:32:49,303 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,311 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,378 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,396 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:32:49,401 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 180 [2018-11-22 23:32:49,404 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,405 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,406 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,407 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,407 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:32:49,411 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 69 [2018-11-22 23:32:49,412 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,447 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,489 INFO L267 ElimStorePlain]: Start of recursive call 54: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,493 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,527 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 266 [2018-11-22 23:32:49,530 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,532 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 29 [2018-11-22 23:32:49,535 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,536 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,537 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,539 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 46 [2018-11-22 23:32:49,539 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,547 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,611 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:32:49,635 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:32:49,639 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 177 [2018-11-22 23:32:49,642 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-22 23:32:49,642 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,672 INFO L267 ElimStorePlain]: Start of recursive call 62: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:49,715 INFO L267 ElimStorePlain]: Start of recursive call 59: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:32:50,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-2 vars, End of recursive call: 38 dim-0 vars, and 9 xjuncts. [2018-11-22 23:32:50,317 INFO L202 ElimStorePlain]: Needed 63 recursive calls to eliminate 12 variables, input treesize:421, output treesize:2787 [2018-11-22 23:33:36,298 WARN L180 SmtUtils]: Spent 45.63 s on a formula simplification. DAG size of input: 747 DAG size of output: 498 [2018-11-22 23:33:36,571 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-22 23:33:36,772 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:33:36,772 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:626) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:354) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java: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) ... 45 more [2018-11-22 23:33:36,775 INFO L168 Benchmark]: Toolchain (without parser) took 146503.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 956.6 MB in the beginning and 958.2 MB in the end (delta: -1.7 MB). Peak memory consumption was 177.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:33:36,776 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-22 23:33:36,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-11-22 23:33:36,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.58 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. [2018-11-22 23:33:36,776 INFO L168 Benchmark]: Boogie Preprocessor took 22.59 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. [2018-11-22 23:33:36,776 INFO L168 Benchmark]: RCFGBuilder took 294.29 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-11-22 23:33:36,777 INFO L168 Benchmark]: TraceAbstraction took 145819.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 36.7 MB). Free memory was 1.1 GB in the beginning and 958.2 MB in the end (delta: 140.1 MB). Peak memory consumption was 176.8 MB. Max. memory is 11.5 GB. [2018-11-22 23:33:36,778 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 343.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.58 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 22.59 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 294.29 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 145819.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 36.7 MB). Free memory was 1.1 GB in the beginning and 958.2 MB in the end (delta: 140.1 MB). Peak memory consumption was 176.8 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 [2018-11-22 23:33:38,107 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:33:38,109 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:33:38,117 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:33:38,118 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:33:38,119 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:33:38,119 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:33:38,121 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:33:38,122 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:33:38,123 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:33:38,123 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:33:38,124 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:33:38,125 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:33:38,126 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:33:38,127 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:33:38,127 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:33:38,128 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:33:38,130 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:33:38,132 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:33:38,133 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:33:38,134 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:33:38,135 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:33:38,136 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:33:38,136 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:33:38,136 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:33:38,138 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:33:38,139 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:33:38,139 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:33:38,140 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:33:38,141 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:33:38,141 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:33:38,142 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:33:38,142 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:33:38,142 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:33:38,143 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:33:38,143 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:33:38,144 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-22 23:33:38,155 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:33:38,156 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:33:38,156 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 23:33:38,157 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 23:33:38,157 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 23:33:38,157 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 23:33:38,157 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 23:33:38,158 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:33:38,158 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 23:33:38,158 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 23:33:38,158 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:33:38,158 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 23:33:38,158 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 23:33:38,159 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 23:33:38,159 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-22 23:33:38,159 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-22 23:33:38,159 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 23:33:38,159 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 23:33:38,159 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:33:38,159 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 23:33:38,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:33:38,160 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 23:33:38,160 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 23:33:38,160 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 23:33:38,160 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 23:33:38,160 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:33:38,163 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 23:33:38,163 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 23:33:38,163 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-22 23:33:38,163 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 23:33:38,163 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-22 23:33:38,163 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-22 23:33:38,164 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_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer 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 -> Automizer 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 -> 31978db89ae521f3f75fa608730a1f5cd4ee8ad4 [2018-11-22 23:33:38,198 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:33:38,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:33:38,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:33:38,213 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:33:38,214 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:33:38,214 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-22 23:33:38,266 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/data/ba8429477/0e81b9ad2354443d8d6288ceb3ac1527/FLAG785a46957 [2018-11-22 23:33:38,633 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:33:38,633 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-22 23:33:38,642 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/data/ba8429477/0e81b9ad2354443d8d6288ceb3ac1527/FLAG785a46957 [2018-11-22 23:33:38,650 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/data/ba8429477/0e81b9ad2354443d8d6288ceb3ac1527 [2018-11-22 23:33:38,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:33:38,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 23:33:38,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:33:38,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:33:38,658 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:33:38,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:33:38" (1/1) ... [2018-11-22 23:33:38,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1e858e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:38, skipping insertion in model container [2018-11-22 23:33:38,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:33:38" (1/1) ... [2018-11-22 23:33:38,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:33:38,700 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:33:38,922 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:33:38,934 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:33:39,042 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:33:39,070 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:33:39,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39 WrapperNode [2018-11-22 23:33:39,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:33:39,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 23:33:39,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 23:33:39,072 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 23:33:39,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (1/1) ... [2018-11-22 23:33:39,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (1/1) ... [2018-11-22 23:33:39,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 23:33:39,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:33:39,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:33:39,097 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:33:39,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (1/1) ... [2018-11-22 23:33:39,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (1/1) ... [2018-11-22 23:33:39,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (1/1) ... [2018-11-22 23:33:39,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (1/1) ... [2018-11-22 23:33:39,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (1/1) ... [2018-11-22 23:33:39,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (1/1) ... [2018-11-22 23:33:39,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (1/1) ... [2018-11-22 23:33:39,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:33:39,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:33:39,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:33:39,124 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:33:39,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:33:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 23:33:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-22 23:33:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 23:33:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 23:33:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 23:33:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 23:33:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-22 23:33:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-22 23:33:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 23:33:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-22 23:33:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:33:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:33:39,598 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:33:39,599 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-22 23:33:39,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:33:39 BoogieIcfgContainer [2018-11-22 23:33:39,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:33:39,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 23:33:39,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 23:33:39,603 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 23:33:39,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:33:38" (1/3) ... [2018-11-22 23:33:39,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4beedcd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:33:39, skipping insertion in model container [2018-11-22 23:33:39,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:33:39" (2/3) ... [2018-11-22 23:33:39,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4beedcd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:33:39, skipping insertion in model container [2018-11-22 23:33:39,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:33:39" (3/3) ... [2018-11-22 23:33:39,606 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-22 23:33:39,613 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 23:33:39,619 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 23:33:39,629 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 23:33:39,652 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 23:33:39,652 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 23:33:39,652 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 23:33:39,653 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 23:33:39,653 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 23:33:39,653 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 23:33:39,653 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 23:33:39,653 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 23:33:39,653 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 23:33:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-22 23:33:39,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-22 23:33:39,668 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:33:39,669 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:33:39,670 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:33:39,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:33:39,674 INFO L82 PathProgramCache]: Analyzing trace with hash 754887617, now seen corresponding path program 1 times [2018-11-22 23:33:39,677 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-22 23:33:39,677 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:33:39,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:33:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:33:39,752 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:33:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:33:39,764 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 23:33:39,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:33:39,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 23:33:39,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-22 23:33:39,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-22 23:33:39,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 23:33:39,780 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-11-22 23:33:39,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:33:39,795 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2018-11-22 23:33:39,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-22 23:33:39,796 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-22 23:33:39,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:33:39,804 INFO L225 Difference]: With dead ends: 56 [2018-11-22 23:33:39,804 INFO L226 Difference]: Without dead ends: 25 [2018-11-22 23:33:39,807 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 23:33:39,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-22 23:33:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-22 23:33:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-22 23:33:39,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2018-11-22 23:33:39,833 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 19 [2018-11-22 23:33:39,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:33:39,833 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2018-11-22 23:33:39,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-22 23:33:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2018-11-22 23:33:39,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-22 23:33:39,834 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:33:39,834 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:33:39,835 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:33:39,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:33:39,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1939354226, now seen corresponding path program 1 times [2018-11-22 23:33:39,836 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-22 23:33:39,836 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:33:39,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:33:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:33:39,899 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:33:39,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:33:39,922 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 23:33:39,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:33:39,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 23:33:39,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 23:33:39,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 23:33:39,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:33:39,925 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 3 states. [2018-11-22 23:33:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:33:39,940 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2018-11-22 23:33:39,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 23:33:39,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-22 23:33:39,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:33:39,942 INFO L225 Difference]: With dead ends: 28 [2018-11-22 23:33:39,942 INFO L226 Difference]: Without dead ends: 26 [2018-11-22 23:33:39,943 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:33:39,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-22 23:33:39,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-22 23:33:39,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-22 23:33:39,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2018-11-22 23:33:39,948 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 19 [2018-11-22 23:33:39,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:33:39,948 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-22 23:33:39,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 23:33:39,949 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-11-22 23:33:39,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-22 23:33:39,949 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:33:39,949 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:33:39,950 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:33:39,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:33:39,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1939356148, now seen corresponding path program 1 times [2018-11-22 23:33:39,951 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-22 23:33:39,951 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:33:39,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:33:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:33:40,029 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:33:40,053 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:33:40,055 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,065 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:33:40,113 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:40,122 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:40,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-22 23:33:40,124 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,232 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 31 treesize of output 22 [2018-11-22 23:33:40,242 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 10 treesize of output 9 [2018-11-22 23:33:40,243 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,301 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 21 treesize of output 22 [2018-11-22 23:33:40,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:33:40,306 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,328 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,346 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,410 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 31 treesize of output 22 [2018-11-22 23:33:40,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-22 23:33:40,417 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,456 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 21 treesize of output 28 [2018-11-22 23:33:40,461 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 13 [2018-11-22 23:33:40,462 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,473 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,481 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,501 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:40,501 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:78, output treesize:49 [2018-11-22 23:33:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:33:40,597 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 23:33:40,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:33:40,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-22 23:33:40,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 23:33:40,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 23:33:40,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-22 23:33:40,599 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand 7 states. [2018-11-22 23:33:43,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:33:43,445 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2018-11-22 23:33:43,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-22 23:33:43,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-22 23:33:43,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:33:43,447 INFO L225 Difference]: With dead ends: 71 [2018-11-22 23:33:43,447 INFO L226 Difference]: Without dead ends: 58 [2018-11-22 23:33:43,447 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-11-22 23:33:43,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-22 23:33:43,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 36. [2018-11-22 23:33:43,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-22 23:33:43,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2018-11-22 23:33:43,454 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 19 [2018-11-22 23:33:43,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:33:43,454 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2018-11-22 23:33:43,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 23:33:43,455 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2018-11-22 23:33:43,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-22 23:33:43,455 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:33:43,455 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:33:43,456 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:33:43,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:33:43,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1941203190, now seen corresponding path program 1 times [2018-11-22 23:33:43,457 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-22 23:33:43,457 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:33:43,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:33:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:33:43,511 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:33:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:33:43,613 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 23:33:43,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:33:43,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:33:43,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:33:43,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:33:43,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:33:43,618 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 6 states. [2018-11-22 23:33:44,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:33:44,751 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2018-11-22 23:33:44,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-22 23:33:44,752 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-22 23:33:44,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:33:44,753 INFO L225 Difference]: With dead ends: 56 [2018-11-22 23:33:44,753 INFO L226 Difference]: Without dead ends: 54 [2018-11-22 23:33:44,754 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:33:44,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-22 23:33:44,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2018-11-22 23:33:44,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-22 23:33:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2018-11-22 23:33:44,761 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 19 [2018-11-22 23:33:44,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:33:44,761 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2018-11-22 23:33:44,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:33:44,761 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2018-11-22 23:33:44,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-22 23:33:44,762 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:33:44,762 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:33:44,763 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:33:44,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:33:44,763 INFO L82 PathProgramCache]: Analyzing trace with hash -578756744, now seen corresponding path program 1 times [2018-11-22 23:33:44,763 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-22 23:33:44,763 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:33:44,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:33:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:33:44,811 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:33:44,815 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:33:44,815 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:44,822 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:44,822 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:33:44,837 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:44,840 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:44,840 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 13 treesize of output 4 [2018-11-22 23:33:44,841 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:44,872 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:33:44,883 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:33:44,920 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 45 treesize of output 31 [2018-11-22 23:33:44,925 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-22 23:33:44,931 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:44,935 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 27 [2018-11-22 23:33:44,936 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:44,946 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:44,969 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 34 treesize of output 35 [2018-11-22 23:33:44,973 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-22 23:33:44,973 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:44,979 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:44,985 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:44,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:44,997 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:55, output treesize:13 [2018-11-22 23:33:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:33:45,032 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 23:33:45,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:33:45,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:33:45,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:33:45,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:33:45,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:33:45,034 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 6 states. [2018-11-22 23:33:46,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:33:46,762 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2018-11-22 23:33:46,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 23:33:46,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-22 23:33:46,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:33:46,763 INFO L225 Difference]: With dead ends: 85 [2018-11-22 23:33:46,763 INFO L226 Difference]: Without dead ends: 64 [2018-11-22 23:33:46,763 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:33:46,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-22 23:33:46,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 40. [2018-11-22 23:33:46,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-22 23:33:46,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2018-11-22 23:33:46,770 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 52 transitions. Word has length 19 [2018-11-22 23:33:46,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:33:46,770 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 52 transitions. [2018-11-22 23:33:46,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:33:46,770 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2018-11-22 23:33:46,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-22 23:33:46,771 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:33:46,771 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:33:46,771 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:33:46,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:33:46,772 INFO L82 PathProgramCache]: Analyzing trace with hash -136924401, now seen corresponding path program 1 times [2018-11-22 23:33:46,772 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-22 23:33:46,772 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:33:46,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:33:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:33:46,830 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:33:46,841 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 24 treesize of output 21 [2018-11-22 23:33:46,844 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-22 23:33:46,848 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:46,851 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-22 23:33:46,851 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:46,855 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:46,857 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:46,861 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:46,862 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:28, output treesize:13 [2018-11-22 23:33:46,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:33:46,888 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 23:33:46,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:33:46,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:33:46,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:33:46,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:33:46,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:33:46,890 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand 6 states. [2018-11-22 23:33:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:33:49,331 INFO L93 Difference]: Finished difference Result 100 states and 132 transitions. [2018-11-22 23:33:49,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 23:33:49,332 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-22 23:33:49,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:33:49,333 INFO L225 Difference]: With dead ends: 100 [2018-11-22 23:33:49,333 INFO L226 Difference]: Without dead ends: 83 [2018-11-22 23:33:49,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:33:49,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-22 23:33:49,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 46. [2018-11-22 23:33:49,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-22 23:33:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2018-11-22 23:33:49,342 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 20 [2018-11-22 23:33:49,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:33:49,342 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2018-11-22 23:33:49,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:33:49,342 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2018-11-22 23:33:49,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-22 23:33:49,343 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:33:49,343 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:33:49,343 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:33:49,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:33:49,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1638082961, now seen corresponding path program 1 times [2018-11-22 23:33:49,344 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-22 23:33:49,344 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:33:49,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:33:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:33:49,378 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:33:49,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:33:49,387 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 23:33:49,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:33:49,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 23:33:49,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 23:33:49,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 23:33:49,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 23:33:49,389 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. Second operand 4 states. [2018-11-22 23:33:49,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:33:49,411 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2018-11-22 23:33:49,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-22 23:33:49,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-22 23:33:49,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:33:49,412 INFO L225 Difference]: With dead ends: 68 [2018-11-22 23:33:49,412 INFO L226 Difference]: Without dead ends: 51 [2018-11-22 23:33:49,413 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-22 23:33:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-22 23:33:49,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2018-11-22 23:33:49,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-22 23:33:49,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2018-11-22 23:33:49,419 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 20 [2018-11-22 23:33:49,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:33:49,419 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2018-11-22 23:33:49,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 23:33:49,419 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2018-11-22 23:33:49,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-22 23:33:49,420 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:33:49,420 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:33:49,420 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:33:49,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:33:49,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1639930003, now seen corresponding path program 1 times [2018-11-22 23:33:49,422 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-22 23:33:49,422 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/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 [2018-11-22 23:33:49,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:33:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:33:49,473 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:33:49,496 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-22 23:33:49,499 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-22 23:33:49,499 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:49,501 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:49,512 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-22 23:33:49,514 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 10 treesize of output 9 [2018-11-22 23:33:49,515 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:49,516 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:49,523 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:49,523 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2018-11-22 23:33:49,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:33:49,554 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 23:33:49,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:33:49,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:33:49,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:33:49,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:33:49,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:33:49,556 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand 6 states. [2018-11-22 23:33:51,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:33:51,903 INFO L93 Difference]: Finished difference Result 86 states and 109 transitions. [2018-11-22 23:33:51,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 23:33:51,904 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-22 23:33:51,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:33:51,904 INFO L225 Difference]: With dead ends: 86 [2018-11-22 23:33:51,904 INFO L226 Difference]: Without dead ends: 84 [2018-11-22 23:33:51,905 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:33:51,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-11-22 23:33:51,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 55. [2018-11-22 23:33:51,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-22 23:33:51,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2018-11-22 23:33:51,911 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 20 [2018-11-22 23:33:51,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:33:51,912 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2018-11-22 23:33:51,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:33:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2018-11-22 23:33:51,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 23:33:51,912 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:33:51,914 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:33:51,914 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:33:51,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:33:51,914 INFO L82 PathProgramCache]: Analyzing trace with hash -2073612015, now seen corresponding path program 1 times [2018-11-22 23:33:51,914 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-22 23:33:51,914 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f82c4139-235f-4d17-8d60-9b23a80b61bd/bin-2019/uautomizer/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-22 23:33:51,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:33:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:33:52,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:33:52,004 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:33:52,004 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,010 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-22 23:33:52,034 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:52,046 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:52,046 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 19 treesize of output 23 [2018-11-22 23:33:52,047 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,148 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 31 treesize of output 22 [2018-11-22 23:33:52,156 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-22 23:33:52,156 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,214 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 21 treesize of output 22 [2018-11-22 23:33:52,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-11-22 23:33:52,219 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,243 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,261 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,312 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 31 treesize of output 22 [2018-11-22 23:33:52,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-22 23:33:52,316 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,338 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 21 treesize of output 22 [2018-11-22 23:33:52,341 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:33:52,342 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,349 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,354 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,370 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,370 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:84, output treesize:67 [2018-11-22 23:33:52,483 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:52,510 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:52,539 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:52,539 INFO L303 Elim1Store]: Index analysis took 106 ms [2018-11-22 23:33:52,540 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-11-22 23:33:52,540 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2018-11-22 23:33:52,821 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:52,825 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 [2018-11-22 23:33:52,826 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,935 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 41 treesize of output 62 [2018-11-22 23:33:52,942 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 [2018-11-22 23:33:52,942 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:52,976 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:53,002 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:53,081 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 71 [2018-11-22 23:33:53,088 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:53,089 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 72 [2018-11-22 23:33:53,089 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:53,152 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 77 treesize of output 81 [2018-11-22 23:33:53,157 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-22 23:33:53,158 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:53,184 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:53,204 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:53,243 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:53,244 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:130, output treesize:106 [2018-11-22 23:33:53,654 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:53,923 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:54,197 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:54,198 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:33:54,198 INFO L303 Elim1Store]: Index analysis took 906 ms [2018-11-22 23:33:54,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 55 [2018-11-22 23:33:54,199 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:57,433 INFO L303 Elim1Store]: Index analysis took 1161 ms [2018-11-22 23:33:57,433 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 84 [2018-11-22 23:33:57,478 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:57,581 INFO L303 Elim1Store]: Index analysis took 146 ms [2018-11-22 23:33:57,581 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 30 treesize of output 18 [2018-11-22 23:33:57,581 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:57,960 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:33:59,136 INFO L303 Elim1Store]: Index analysis took 331 ms [2018-11-22 23:33:59,137 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 85 [2018-11-22 23:33:59,176 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:33:59,177 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 31 [2018-11-22 23:33:59,178 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:59,809 INFO L303 Elim1Store]: Index analysis took 411 ms [2018-11-22 23:33:59,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 109 [2018-11-22 23:33:59,823 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:33:59,824 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:33:59,935 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:34:00,004 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:34:00,222 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:00,242 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:00,463 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 142 [2018-11-22 23:34:00,478 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:00,482 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-22 23:34:00,494 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:00,496 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:00,498 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:00,508 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-22 23:34:00,508 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:00,532 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:34:00,646 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 148 [2018-11-22 23:34:00,655 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-22 23:34:00,655 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:00,710 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:34:00,766 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:34:00,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:00,847 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 7 variables, input treesize:282, output treesize:192 [2018-11-22 23:34:01,001 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-22 23:34:01,001 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:01,168 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 131 [2018-11-22 23:34:01,181 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:01,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 32 [2018-11-22 23:34:01,185 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:01,220 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 50 [2018-11-22 23:34:01,221 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:01,256 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:01,300 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:01,300 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:660, output treesize:68 [2018-11-22 23:34:01,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:34:01,436 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:34:01,575 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:01,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:02,084 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:02,169 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:02,816 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:02,862 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:03,118 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:03,173 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-22 23:34:03,338 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-11-22 23:34:03,338 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:301, output treesize:281 [2018-11-22 23:34:06,260 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_6 (_ BitVec 32)) (v_prenex_10 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32)) (v_prenex_8 (_ BitVec 32)) (|v_main_#t~malloc9.base_2| (_ BitVec 32))) (or (not (= (select (store |c_#valid| v_prenex_8 (_ bv1 1)) |v_main_#t~malloc9.base_2|) (_ bv0 1))) (= (_ bv0 32) (let ((.cse3 (bvadd v_prenex_9 (_ bv8 32))) (.cse4 (bvadd v_prenex_9 (_ bv4 32)))) (let ((.cse0 (let ((.cse6 (let ((.cse7 (store |c_#memory_$Pointer$.offset| c_main_~x~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~x~0.base) c_main_~x~0.offset v_prenex_10)))) (store .cse7 v_prenex_8 (store (store (store (select .cse7 v_prenex_8) v_prenex_9 (_ bv0 32)) .cse3 v_DerPreprocessor_6) .cse4 (_ bv0 32)))))) (store .cse6 |v_main_#t~malloc9.base_2| (store (select .cse6 |v_main_#t~malloc9.base_2|) (_ bv0 32) (_ bv0 32))))) (.cse5 (bvadd c_main_~head~0.offset (_ bv4 32)))) (select (select .cse0 (select (select (let ((.cse1 (let ((.cse2 (store |c_#memory_$Pointer$.base| c_main_~x~0.base (store (select |c_#memory_$Pointer$.base| c_main_~x~0.base) c_main_~x~0.offset v_prenex_8)))) (store .cse2 v_prenex_8 (store (store (store (select .cse2 v_prenex_8) v_prenex_9 (_ bv0 32)) .cse3 v_DerPreprocessor_10) .cse4 |v_main_#t~malloc9.base_2|))))) (store .cse1 |v_main_#t~malloc9.base_2| (store (select .cse1 |v_main_#t~malloc9.base_2|) (_ bv0 32) (_ bv0 32)))) c_main_~head~0.base) .cse5)) (select (select .cse0 c_main_~head~0.base) .cse5))))) (not (= (select |c_#valid| v_prenex_8) (_ bv0 1))))) (forall ((v_main_~x~0.offset_22 (_ BitVec 32)) (|v_main_#t~malloc6.base_2| (_ BitVec 32)) (|v_main_#t~malloc6.offset_2| (_ BitVec 32)) (v_prenex_7 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (or (not (= (select (store |c_#valid| |v_main_#t~malloc6.base_2| (_ bv1 1)) v_prenex_7) (_ bv0 1))) (not (= (select |c_#valid| |v_main_#t~malloc6.base_2|) (_ bv0 1))) (= (_ bv0 32) (let ((.cse12 (bvadd v_main_~x~0.offset_22 (_ bv8 32))) (.cse13 (bvadd v_main_~x~0.offset_22 (_ bv4 32))) (.cse9 (bvadd c_main_~head~0.offset (_ bv4 32)))) (select (let ((.cse8 (let ((.cse10 (let ((.cse11 (store |c_#memory_$Pointer$.base| c_main_~x~0.base (store (select |c_#memory_$Pointer$.base| c_main_~x~0.base) c_main_~x~0.offset |v_main_#t~malloc6.base_2|)))) (store .cse11 |v_main_#t~malloc6.base_2| (store (store (store (select .cse11 |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) .cse12 v_DerPreprocessor_8) .cse13 v_prenex_7))))) (store .cse10 v_prenex_7 (store (select .cse10 v_prenex_7) (_ bv0 32) (_ bv0 32)))))) (select .cse8 (select (select .cse8 c_main_~head~0.base) .cse9))) (select (select (let ((.cse14 (let ((.cse15 (store |c_#memory_$Pointer$.offset| c_main_~x~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~x~0.base) c_main_~x~0.offset |v_main_#t~malloc6.offset_2|)))) (store .cse15 |v_main_#t~malloc6.base_2| (store (store (store (select .cse15 |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) .cse12 v_DerPreprocessor_12) .cse13 (_ bv0 32)))))) (store .cse14 v_prenex_7 (store (select .cse14 v_prenex_7) (_ bv0 32) (_ bv0 32)))) c_main_~head~0.base) .cse9))))))) is different from false [2018-11-22 23:34:08,306 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((v_main_~x~0.offset_22 (_ BitVec 32)) (|v_main_#t~malloc6.base_2| (_ BitVec 32)) (|v_main_#t~malloc6.offset_2| (_ BitVec 32)) (v_prenex_7 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (or (not (= (select (store |c_#valid| |v_main_#t~malloc6.base_2| (_ bv1 1)) v_prenex_7) (_ bv0 1))) (= (_ bv0 32) (let ((.cse4 (bvadd v_main_~x~0.offset_22 (_ bv8 32))) (.cse5 (bvadd v_main_~x~0.offset_22 (_ bv4 32))) (.cse1 (bvadd c_main_~head~0.offset (_ bv4 32)))) (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$.base| c_main_~head~0.base (store (select |c_#memory_$Pointer$.base| c_main_~head~0.base) c_main_~head~0.offset |v_main_#t~malloc6.base_2|)))) (store .cse3 |v_main_#t~malloc6.base_2| (store (store (store (select .cse3 |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) .cse4 v_DerPreprocessor_8) .cse5 v_prenex_7))))) (store .cse2 v_prenex_7 (store (select .cse2 v_prenex_7) (_ bv0 32) (_ bv0 32)))))) (select .cse0 (select (select .cse0 c_main_~head~0.base) .cse1))) (select (select (let ((.cse6 (let ((.cse7 (store |c_#memory_$Pointer$.offset| c_main_~head~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~head~0.base) c_main_~head~0.offset |v_main_#t~malloc6.offset_2|)))) (store .cse7 |v_main_#t~malloc6.base_2| (store (store (store (select .cse7 |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) .cse4 v_DerPreprocessor_12) .cse5 (_ bv0 32)))))) (store .cse6 v_prenex_7 (store (select .cse6 v_prenex_7) (_ bv0 32) (_ bv0 32)))) c_main_~head~0.base) .cse1)))) (not (= (select |c_#valid| |v_main_#t~malloc6.base_2|) (_ bv0 1))))) (forall ((v_DerPreprocessor_6 (_ BitVec 32)) (v_prenex_10 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32)) (v_prenex_8 (_ BitVec 32)) (|v_main_#t~malloc9.base_2| (_ BitVec 32))) (or (= (let ((.cse11 (bvadd v_prenex_9 (_ bv8 32))) (.cse12 (bvadd v_prenex_9 (_ bv4 32)))) (let ((.cse8 (let ((.cse14 (let ((.cse15 (store |c_#memory_$Pointer$.offset| c_main_~head~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~head~0.base) c_main_~head~0.offset v_prenex_10)))) (store .cse15 v_prenex_8 (store (store (store (select .cse15 v_prenex_8) v_prenex_9 (_ bv0 32)) .cse11 v_DerPreprocessor_6) .cse12 (_ bv0 32)))))) (store .cse14 |v_main_#t~malloc9.base_2| (store (select .cse14 |v_main_#t~malloc9.base_2|) (_ bv0 32) (_ bv0 32))))) (.cse13 (bvadd c_main_~head~0.offset (_ bv4 32)))) (select (select .cse8 (select (select (let ((.cse9 (let ((.cse10 (store |c_#memory_$Pointer$.base| c_main_~head~0.base (store (select |c_#memory_$Pointer$.base| c_main_~head~0.base) c_main_~head~0.offset v_prenex_8)))) (store .cse10 v_prenex_8 (store (store (store (select .cse10 v_prenex_8) v_prenex_9 (_ bv0 32)) .cse11 v_DerPreprocessor_10) .cse12 |v_main_#t~malloc9.base_2|))))) (store .cse9 |v_main_#t~malloc9.base_2| (store (select .cse9 |v_main_#t~malloc9.base_2|) (_ bv0 32) (_ bv0 32)))) c_main_~head~0.base) .cse13)) (select (select .cse8 c_main_~head~0.base) .cse13)))) (_ bv0 32)) (not (= (select (store |c_#valid| v_prenex_8 (_ bv1 1)) |v_main_#t~malloc9.base_2|) (_ bv0 1))) (not (= (select |c_#valid| v_prenex_8) (_ bv0 1)))))) is different from false [2018-11-22 23:34:08,595 INFO L303 Elim1Store]: Index analysis took 257 ms [2018-11-22 23:34:08,595 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 947 treesize of output 638 [2018-11-22 23:34:08,645 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-11-22 23:34:08,645 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:09,971 INFO L303 Elim1Store]: Index analysis took 533 ms [2018-11-22 23:34:10,672 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 610 treesize of output 508 [2018-11-22 23:34:10,903 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 493 treesize of output 501 [2018-11-22 23:34:10,903 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-22 23:34:14,402 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 494 treesize of output 493 [2018-11-22 23:34:14,403 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:16,771 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 0 case distinctions, treesize of input 490 treesize of output 433 [2018-11-22 23:34:17,755 WARN L180 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-11-22 23:34:17,765 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:17,779 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 20 [2018-11-22 23:34:17,779 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:17,950 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:17,950 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:17,950 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:18,038 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 388 treesize of output 380 [2018-11-22 23:34:19,017 WARN L180 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-11-22 23:34:19,026 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-22 23:34:19,033 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,041 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-22 23:34:19,053 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,055 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,056 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,063 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,082 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 53 [2018-11-22 23:34:19,083 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:19,145 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:34:19,176 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:34:19,237 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,237 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,238 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,238 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,251 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,251 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,311 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 389 treesize of output 419 [2018-11-22 23:34:19,319 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 22 [2018-11-22 23:34:19,320 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:19,390 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,391 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,391 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,391 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,391 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,397 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,397 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,460 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 372 treesize of output 397 [2018-11-22 23:34:19,820 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 388 treesize of output 720 [2018-11-22 23:34:19,823 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:19,980 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:19,981 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,013 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,047 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,099 INFO L303 Elim1Store]: Index analysis took 159 ms [2018-11-22 23:34:20,247 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 366 treesize of output 997 [2018-11-22 23:34:20,249 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-11-22 23:34:20,494 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 335 [2018-11-22 23:34:20,495 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:20,502 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 649 treesize of output 643 [2018-11-22 23:34:20,503 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:20,639 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,640 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:20,641 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 62 treesize of output 53 [2018-11-22 23:34:20,641 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:20,747 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,747 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,748 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,748 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,752 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 44 treesize of output 42 [2018-11-22 23:34:20,752 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:20,846 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 16 [2018-11-22 23:34:20,847 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:20,935 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,935 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,939 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:20,951 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 335 treesize of output 335 [2018-11-22 23:34:20,951 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:20,957 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,957 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:20,960 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:20,971 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 643 treesize of output 643 [2018-11-22 23:34:20,971 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:21,045 INFO L267 ElimStorePlain]: Start of recursive call 15: 7 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-22 23:34:21,106 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-22 23:34:21,167 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-22 23:34:21,288 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-22 23:34:21,301 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:21,302 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 494 treesize of output 440 [2018-11-22 23:34:21,736 WARN L180 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-11-22 23:34:21,766 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:21,784 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:21,859 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:21,859 INFO L303 Elim1Store]: Index analysis took 122 ms [2018-11-22 23:34:21,860 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 40 [2018-11-22 23:34:21,860 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:22,010 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 [2018-11-22 23:34:22,013 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:22,013 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:22,014 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2018-11-22 23:34:22,014 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:22,017 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:34:22,024 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:34:23,839 INFO L303 Elim1Store]: Index analysis took 170 ms [2018-11-22 23:34:24,113 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 490 treesize of output 450 [2018-11-22 23:34:26,008 WARN L180 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 146 [2018-11-22 23:34:26,024 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:26,025 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:26,026 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 403 treesize of output 418 [2018-11-22 23:34:26,026 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:26,028 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-22 23:34:26,028 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:26,048 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:26,048 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:26,049 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 797 treesize of output 812 [2018-11-22 23:34:26,050 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:27,232 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:27,237 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:27,242 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:27,242 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:27,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 425 treesize of output 446 [2018-11-22 23:34:27,244 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:27,941 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:27,964 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:27,964 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:27,965 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:28,289 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:28,801 INFO L303 Elim1Store]: Index analysis took 894 ms [2018-11-22 23:34:28,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 401 treesize of output 411 [2018-11-22 23:34:29,585 WARN L180 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-11-22 23:34:29,835 INFO L303 Elim1Store]: Index analysis took 248 ms [2018-11-22 23:34:29,851 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 387 treesize of output 393 [2018-11-22 23:34:29,861 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 9 treesize of output 8 [2018-11-22 23:34:29,862 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:30,072 INFO L303 Elim1Store]: Index analysis took 121 ms [2018-11-22 23:34:30,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 379 treesize of output 396 [2018-11-22 23:34:30,264 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:30,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 401 treesize of output 408 [2018-11-22 23:34:30,369 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:30,374 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:30,394 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:30,497 INFO L303 Elim1Store]: Index analysis took 142 ms [2018-11-22 23:34:30,579 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 403 treesize of output 415 [2018-11-22 23:34:30,595 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:30,596 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:30,598 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:30,599 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:30,691 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 406 treesize of output 422 [2018-11-22 23:34:41,971 WARN L180 SmtUtils]: Spent 11.28 s on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-11-22 23:34:41,982 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:41,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:41,993 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,016 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 371 treesize of output 968 [2018-11-22 23:34:42,017 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:42,219 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,220 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,221 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,222 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,223 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,224 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,295 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 349 [2018-11-22 23:34:42,296 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:42,492 INFO L267 ElimStorePlain]: Start of recursive call 40: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-22 23:34:42,716 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,717 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,723 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,723 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,729 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,755 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:42,776 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,787 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:42,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 382 treesize of output 423 [2018-11-22 23:34:47,989 WARN L180 SmtUtils]: Spent 5.02 s on a formula simplification. DAG size of input: 121 DAG size of output: 105 [2018-11-22 23:34:48,035 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,035 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,036 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,036 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,037 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,044 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:48,093 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,094 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,115 INFO L303 Elim1Store]: Index analysis took 124 ms [2018-11-22 23:34:48,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 674 treesize of output 1311 [2018-11-22 23:34:48,173 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 2 xjuncts. [2018-11-22 23:34:48,231 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,231 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,232 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,232 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,232 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,238 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:48,285 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,286 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:48,307 INFO L303 Elim1Store]: Index analysis took 132 ms [2018-11-22 23:34:48,471 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 366 treesize of output 1010 [2018-11-22 23:34:48,473 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 4 xjuncts. [2018-11-22 23:34:49,379 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:49,380 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:49,382 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:49,399 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:49,400 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:49,400 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:49,426 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:49,427 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:49,466 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:49,467 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:49,484 INFO L303 Elim1Store]: Index analysis took 163 ms [2018-11-22 23:34:49,717 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 352 treesize of output 1307 [2018-11-22 23:34:49,718 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 4 xjuncts. [2018-11-22 23:34:50,356 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,357 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,358 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,363 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,364 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,371 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:50,372 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,455 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 374 [2018-11-22 23:34:50,456 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 2 xjuncts. [2018-11-22 23:34:50,509 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,576 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,577 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,579 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,600 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,601 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,638 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:50,639 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:50,976 INFO L303 Elim1Store]: Index analysis took 519 ms [2018-11-22 23:34:51,065 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 668 treesize of output 1608 [2018-11-22 23:34:51,066 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 4 xjuncts. [2018-11-22 23:34:55,032 INFO L267 ElimStorePlain]: Start of recursive call 43: 3 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-11-22 23:34:56,743 INFO L267 ElimStorePlain]: Start of recursive call 39: 2 dim-1 vars, End of recursive call: and 9 xjuncts. [2018-11-22 23:34:57,816 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:57,817 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:57,826 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:57,976 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 383 treesize of output 400 [2018-11-22 23:34:57,985 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:57,986 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:57,986 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:57,988 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:57,998 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:57,999 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 393 treesize of output 404 [2018-11-22 23:34:58,771 WARN L180 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2018-11-22 23:34:58,787 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:58,787 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:58,788 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:58,788 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:58,789 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:58,794 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:58,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 345 treesize of output 356 [2018-11-22 23:34:58,847 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-22 23:34:58,932 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:58,932 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:58,933 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:58,933 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:58,934 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:34:58,938 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:34:59,079 INFO L303 Elim1Store]: Index analysis took 230 ms [2018-11-22 23:34:59,252 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 344 treesize of output 988 [2018-11-22 23:34:59,254 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 4 xjuncts. [2018-11-22 23:34:59,637 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-22 23:35:00,027 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:35:00,028 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:35:00,028 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:35:00,029 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:35:00,038 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 378 treesize of output 391 [2018-11-22 23:35:01,005 WARN L180 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2018-11-22 23:35:01,030 INFO L701 Elim1Store]: detected not equals via solver [2018-11-22 23:35:01,031 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:35:01,031 INFO L683 Elim1Store]: detected equality via solver [2018-11-22 23:35:01,064 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 346 treesize of output 1873 [2018-11-22 23:35:01,065 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-22 23:35:01,130 INFO L267 ElimStorePlain]: Start of recursive call 53: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-22 23:35:01,354 INFO L267 ElimStorePlain]: Start of recursive call 49: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-22 23:35:02,444 INFO L267 ElimStorePlain]: Start of recursive call 38: 2 dim-1 vars, End of recursive call: and 8 xjuncts. [2018-11-22 23:35:04,018 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-22 23:35:04,018 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store (store (store v_arrayElimCell_52 main_~head~0.offset |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) (bvadd v_main_~x~0.offset_22 (_ bv8 32)) v_DerPreprocessor_8) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:210) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:191) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-22 23:35:04,020 INFO L168 Benchmark]: Toolchain (without parser) took 85367.21 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 305.7 MB). Free memory was 943.3 MB in the beginning and 927.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 429.8 MB. Max. memory is 11.5 GB. [2018-11-22 23:35:04,021 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-11-22 23:35:04,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-11-22 23:35:04,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.73 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-22 23:35:04,021 INFO L168 Benchmark]: Boogie Preprocessor took 27.61 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. [2018-11-22 23:35:04,021 INFO L168 Benchmark]: RCFGBuilder took 475.28 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-11-22 23:35:04,021 INFO L168 Benchmark]: TraceAbstraction took 84419.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.1 MB). Free memory was 1.1 GB in the beginning and 927.6 MB in the end (delta: 151.6 MB). Peak memory consumption was 424.2 MB. Max. memory is 11.5 GB. [2018-11-22 23:35:04,023 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 416.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.73 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.61 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 475.28 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 84419.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.1 MB). Free memory was 1.1 GB in the beginning and 927.6 MB in the end (delta: 151.6 MB). Peak memory consumption was 424.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store (store (store v_arrayElimCell_52 main_~head~0.offset |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) (bvadd v_main_~x~0.offset_22 (_ bv8 32)) v_DerPreprocessor_8) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store (store (store v_arrayElimCell_52 main_~head~0.offset |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) (bvadd v_main_~x~0.offset_22 (_ bv8 32)) v_DerPreprocessor_8): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...