./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-buckets_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-buckets_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec7b34841527490886cd362d78588ff0f0e72200 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-buckets_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec7b34841527490886cd362d78588ff0f0e72200 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_86 input size 18 context size 18 output size 18 --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 22:14:02,585 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 22:14:02,586 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 22:14:02,592 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 22:14:02,592 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 22:14:02,593 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 22:14:02,593 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 22:14:02,594 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 22:14:02,595 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 22:14:02,595 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 22:14:02,596 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 22:14:02,596 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 22:14:02,596 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 22:14:02,597 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 22:14:02,597 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 22:14:02,598 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 22:14:02,598 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 22:14:02,599 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 22:14:02,600 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 22:14:02,601 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 22:14:02,601 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 22:14:02,602 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 22:14:02,603 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 22:14:02,603 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 22:14:02,603 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 22:14:02,603 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 22:14:02,604 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 22:14:02,604 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 22:14:02,605 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 22:14:02,605 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 22:14:02,605 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 22:14:02,605 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 22:14:02,606 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 22:14:02,606 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 22:14:02,606 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 22:14:02,606 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 22:14:02,607 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 22:14:02,614 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 22:14:02,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 22:14:02,614 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 22:14:02,614 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 22:14:02,615 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 22:14:02,615 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 22:14:02,615 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 22:14:02,615 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 22:14:02,615 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 22:14:02,615 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 22:14:02,615 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 22:14:02,615 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 22:14:02,615 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 22:14:02,616 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 22:14:02,616 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 22:14:02,616 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 22:14:02,616 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 22:14:02,616 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 22:14:02,616 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 22:14:02,616 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 22:14:02,616 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 22:14:02,616 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 22:14:02,616 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 22:14:02,617 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 22:14:02,617 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 22:14:02,617 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 22:14:02,617 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 22:14:02,617 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 22:14:02,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 22:14:02,617 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 22:14:02,617 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 22:14:02,617 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 22:14:02,617 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 22:14:02,617 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 22:14:02,618 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 22:14:02,618 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 22:14:02,618 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec7b34841527490886cd362d78588ff0f0e72200 [2018-12-08 22:14:02,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 22:14:02,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 22:14:02,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 22:14:02,648 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 22:14:02,648 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 22:14:02,649 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/sll-buckets_false-unreach-call_false-valid-memcleanup.i [2018-12-08 22:14:02,691 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/data/62169a2d3/ab5470218dd84a3ab0a7afd55b91153c/FLAGb191c7100 [2018-12-08 22:14:03,118 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 22:14:03,119 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/sv-benchmarks/c/forester-heap/sll-buckets_false-unreach-call_false-valid-memcleanup.i [2018-12-08 22:14:03,124 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/data/62169a2d3/ab5470218dd84a3ab0a7afd55b91153c/FLAGb191c7100 [2018-12-08 22:14:03,132 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/data/62169a2d3/ab5470218dd84a3ab0a7afd55b91153c [2018-12-08 22:14:03,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 22:14:03,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 22:14:03,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 22:14:03,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 22:14:03,138 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 22:14:03,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fc83c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03, skipping insertion in model container [2018-12-08 22:14:03,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 22:14:03,163 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 22:14:03,308 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:14:03,314 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 22:14:03,378 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:14:03,398 INFO L195 MainTranslator]: Completed translation [2018-12-08 22:14:03,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03 WrapperNode [2018-12-08 22:14:03,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 22:14:03,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 22:14:03,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 22:14:03,399 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 22:14:03,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 22:14:03,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 22:14:03,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 22:14:03,417 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 22:14:03,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (1/1) ... [2018-12-08 22:14:03,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 22:14:03,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 22:14:03,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 22:14:03,438 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 22:14:03,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 22:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 22:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 22:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 22:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 22:14:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 22:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 22:14:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 22:14:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 22:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 22:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 22:14:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 22:14:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 22:14:03,715 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 22:14:03,715 INFO L280 CfgBuilder]: Removed 15 assue(true) statements. [2018-12-08 22:14:03,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:14:03 BoogieIcfgContainer [2018-12-08 22:14:03,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 22:14:03,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 22:14:03,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 22:14:03,718 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 22:14:03,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 10:14:03" (1/3) ... [2018-12-08 22:14:03,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b38a535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:14:03, skipping insertion in model container [2018-12-08 22:14:03,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:03" (2/3) ... [2018-12-08 22:14:03,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b38a535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:14:03, skipping insertion in model container [2018-12-08 22:14:03,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:14:03" (3/3) ... [2018-12-08 22:14:03,720 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets_false-unreach-call_false-valid-memcleanup.i [2018-12-08 22:14:03,727 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 22:14:03,733 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-12-08 22:14:03,741 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-12-08 22:14:03,758 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 22:14:03,759 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 22:14:03,759 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 22:14:03,759 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 22:14:03,759 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 22:14:03,759 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 22:14:03,759 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 22:14:03,759 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 22:14:03,770 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-12-08 22:14:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 22:14:03,773 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:14:03,773 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:14:03,775 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:14:03,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:14:03,778 INFO L82 PathProgramCache]: Analyzing trace with hash -810975847, now seen corresponding path program 1 times [2018-12-08 22:14:03,779 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:14:03,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:03,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:14:03,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:03,813 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:14:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:14:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:14:03,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:14:03,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 22:14:03,880 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:14:03,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 22:14:03,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 22:14:03,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 22:14:03,892 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-12-08 22:14:03,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:14:03,906 INFO L93 Difference]: Finished difference Result 92 states and 146 transitions. [2018-12-08 22:14:03,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 22:14:03,907 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-12-08 22:14:03,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:14:03,915 INFO L225 Difference]: With dead ends: 92 [2018-12-08 22:14:03,915 INFO L226 Difference]: Without dead ends: 44 [2018-12-08 22:14:03,917 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 [2018-12-08 22:14:03,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-08 22:14:03,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-08 22:14:03,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-08 22:14:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-12-08 22:14:03,939 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 12 [2018-12-08 22:14:03,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:14:03,940 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-12-08 22:14:03,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 22:14:03,940 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-12-08 22:14:03,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 22:14:03,940 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:14:03,940 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:14:03,941 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:14:03,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:14:03,941 INFO L82 PathProgramCache]: Analyzing trace with hash 409991454, now seen corresponding path program 1 times [2018-12-08 22:14:03,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:14:03,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:03,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:14:03,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:03,943 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:14:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:14:04,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:14:04,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:14:04,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 22:14:04,007 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:14:04,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 22:14:04,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 22:14:04,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 22:14:04,008 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 4 states. [2018-12-08 22:14:04,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:14:04,049 INFO L93 Difference]: Finished difference Result 74 states and 88 transitions. [2018-12-08 22:14:04,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 22:14:04,050 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-08 22:14:04,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:14:04,050 INFO L225 Difference]: With dead ends: 74 [2018-12-08 22:14:04,050 INFO L226 Difference]: Without dead ends: 70 [2018-12-08 22:14:04,051 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 [2018-12-08 22:14:04,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-08 22:14:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 45. [2018-12-08 22:14:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-08 22:14:04,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2018-12-08 22:14:04,055 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 12 [2018-12-08 22:14:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:14:04,055 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2018-12-08 22:14:04,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 22:14:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2018-12-08 22:14:04,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 22:14:04,055 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:14:04,056 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:14:04,056 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:14:04,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:14:04,056 INFO L82 PathProgramCache]: Analyzing trace with hash -138901270, now seen corresponding path program 1 times [2018-12-08 22:14:04,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:14:04,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:04,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:14:04,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:04,057 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:14:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:14:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:14:04,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:14:04,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 22:14:04,084 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:14:04,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 22:14:04,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 22:14:04,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 22:14:04,084 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand 3 states. [2018-12-08 22:14:04,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:14:04,109 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-12-08 22:14:04,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 22:14:04,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-08 22:14:04,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:14:04,110 INFO L225 Difference]: With dead ends: 49 [2018-12-08 22:14:04,110 INFO L226 Difference]: Without dead ends: 47 [2018-12-08 22:14:04,110 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 [2018-12-08 22:14:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-08 22:14:04,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-12-08 22:14:04,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-08 22:14:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-12-08 22:14:04,113 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 13 [2018-12-08 22:14:04,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:14:04,114 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-12-08 22:14:04,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 22:14:04,114 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-12-08 22:14:04,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 22:14:04,114 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:14:04,114 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:14:04,114 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:14:04,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:14:04,114 INFO L82 PathProgramCache]: Analyzing trace with hash -10936096, now seen corresponding path program 1 times [2018-12-08 22:14:04,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:14:04,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:04,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:14:04,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:04,116 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:14:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:14:04,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:14:04,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:14:04,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 22:14:04,244 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:14:04,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 22:14:04,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 22:14:04,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:14:04,245 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 5 states. [2018-12-08 22:14:04,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:14:04,334 INFO L93 Difference]: Finished difference Result 65 states and 78 transitions. [2018-12-08 22:14:04,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 22:14:04,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-12-08 22:14:04,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:14:04,336 INFO L225 Difference]: With dead ends: 65 [2018-12-08 22:14:04,336 INFO L226 Difference]: Without dead ends: 54 [2018-12-08 22:14:04,337 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-08 22:14:04,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-08 22:14:04,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2018-12-08 22:14:04,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-08 22:14:04,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2018-12-08 22:14:04,343 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 14 [2018-12-08 22:14:04,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:14:04,343 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2018-12-08 22:14:04,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 22:14:04,344 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2018-12-08 22:14:04,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 22:14:04,344 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:14:04,344 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:14:04,345 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:14:04,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:14:04,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1135076446, now seen corresponding path program 1 times [2018-12-08 22:14:04,345 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:14:04,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:04,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:14:04,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:04,347 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:14:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:14:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:14:04,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:14:04,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 22:14:04,370 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:14:04,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 22:14:04,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 22:14:04,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 22:14:04,371 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand 3 states. [2018-12-08 22:14:04,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:14:04,430 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-12-08 22:14:04,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 22:14:04,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-12-08 22:14:04,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:14:04,431 INFO L225 Difference]: With dead ends: 49 [2018-12-08 22:14:04,431 INFO L226 Difference]: Without dead ends: 47 [2018-12-08 22:14:04,432 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 [2018-12-08 22:14:04,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-08 22:14:04,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2018-12-08 22:14:04,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-08 22:14:04,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2018-12-08 22:14:04,436 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 14 [2018-12-08 22:14:04,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:14:04,437 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2018-12-08 22:14:04,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 22:14:04,437 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2018-12-08 22:14:04,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 22:14:04,437 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:14:04,438 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:14:04,438 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:14:04,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:14:04,438 INFO L82 PathProgramCache]: Analyzing trace with hash 993366976, now seen corresponding path program 1 times [2018-12-08 22:14:04,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:14:04,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:04,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:14:04,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:14:04,440 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:14:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:14:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:14:04,608 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:14:04,608 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 22:14:04,609 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-12-08 22:14:04,610 INFO L205 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [116], [125], [132], [134], [138], [141], [142], [166], [170], [175], [181], [182], [183] [2018-12-08 22:14:04,632 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 22:14:04,632 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 22:14:04,762 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 22:14:04,763 INFO L272 AbstractInterpreter]: Visited 18 different actions 27 times. Merged at 9 different actions 9 times. Never widened. Performed 282 root evaluator evaluations with a maximum evaluation depth of 3. Performed 282 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 41 variables. [2018-12-08 22:14:04,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:14:04,769 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 22:14:04,769 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:14:04,769 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 22:14:04,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:14:04,776 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 22:14:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:14:04,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:14:05,675 WARN L180 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2018-12-08 22:14:05,691 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:14:05,694 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 29 [2018-12-08 22:14:05,721 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:14:05,736 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:14:05,737 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 [2018-12-08 22:14:05,737 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 22:14:05,795 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:14:05,958 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:14:05,969 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:14:06,153 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 67 treesize of output 59 [2018-12-08 22:14:06,159 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:14:06,169 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:14:06,186 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 [2018-12-08 22:14:06,187 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-08 22:14:06,219 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:14:06,287 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:14:06,338 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 77 [2018-12-08 22:14:06,344 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 35 [2018-12-08 22:14:06,345 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-08 22:14:06,412 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 56 treesize of output 58 [2018-12-08 22:14:06,420 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:14:06,424 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 10 [2018-12-08 22:14:06,424 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-12-08 22:14:06,466 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-12-08 22:14:06,671 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 22:14:06,673 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_6 input size 6 context size 6 output size 6 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java: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) [2018-12-08 22:14:06,678 INFO L168 Benchmark]: Toolchain (without parser) took 3542.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 948.1 MB in the beginning and 859.1 MB in the end (delta: 89.0 MB). Peak memory consumption was 224.8 MB. Max. memory is 11.5 GB. [2018-12-08 22:14:06,679 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:14:06,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-08 22:14:06,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.46 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. [2018-12-08 22:14:06,680 INFO L168 Benchmark]: Boogie Preprocessor took 21.01 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. [2018-12-08 22:14:06,680 INFO L168 Benchmark]: RCFGBuilder took 277.98 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: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. [2018-12-08 22:14:06,681 INFO L168 Benchmark]: TraceAbstraction took 2960.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 859.1 MB in the end (delta: 217.9 MB). Peak memory consumption was 217.9 MB. Max. memory is 11.5 GB. [2018-12-08 22:14:06,683 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.01 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 277.98 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: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2960.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 859.1 MB in the end (delta: 217.9 MB). Peak memory consumption was 217.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_6 input size 6 context size 6 output size 6 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_6 input size 6 context size 6 output size 6: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-08 22:14:07,919 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 22:14:07,920 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 22:14:07,926 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 22:14:07,926 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 22:14:07,927 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 22:14:07,927 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 22:14:07,928 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 22:14:07,929 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 22:14:07,929 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 22:14:07,929 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 22:14:07,930 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 22:14:07,930 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 22:14:07,930 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 22:14:07,931 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 22:14:07,931 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 22:14:07,932 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 22:14:07,933 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 22:14:07,933 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 22:14:07,934 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 22:14:07,935 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 22:14:07,935 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 22:14:07,936 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 22:14:07,936 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 22:14:07,936 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 22:14:07,937 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 22:14:07,937 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 22:14:07,938 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 22:14:07,938 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 22:14:07,939 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 22:14:07,939 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 22:14:07,939 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 22:14:07,939 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 22:14:07,939 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 22:14:07,940 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 22:14:07,940 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 22:14:07,940 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 22:14:07,947 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 22:14:07,948 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 22:14:07,948 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 22:14:07,948 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 22:14:07,948 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 22:14:07,948 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 22:14:07,948 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 22:14:07,948 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 22:14:07,949 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 22:14:07,949 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 22:14:07,949 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 22:14:07,949 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 22:14:07,949 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 22:14:07,949 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 22:14:07,949 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 22:14:07,949 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 22:14:07,949 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 22:14:07,950 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 22:14:07,950 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 22:14:07,950 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 22:14:07,950 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 22:14:07,950 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 22:14:07,950 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 22:14:07,950 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 22:14:07,950 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 22:14:07,950 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 22:14:07,950 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 22:14:07,950 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 22:14:07,950 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 22:14:07,951 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 22:14:07,951 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 22:14:07,951 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 22:14:07,951 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 22:14:07,951 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 22:14:07,951 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 22:14:07,951 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_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec7b34841527490886cd362d78588ff0f0e72200 [2018-12-08 22:14:07,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 22:14:07,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 22:14:07,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 22:14:07,978 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 22:14:07,978 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 22:14:07,979 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/sll-buckets_false-unreach-call_false-valid-memcleanup.i [2018-12-08 22:14:08,013 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/data/8510aeaa8/e637542f29e54049a5558d7325109f87/FLAG34769634c [2018-12-08 22:14:08,472 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 22:14:08,473 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/sv-benchmarks/c/forester-heap/sll-buckets_false-unreach-call_false-valid-memcleanup.i [2018-12-08 22:14:08,479 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/data/8510aeaa8/e637542f29e54049a5558d7325109f87/FLAG34769634c [2018-12-08 22:14:08,487 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/data/8510aeaa8/e637542f29e54049a5558d7325109f87 [2018-12-08 22:14:08,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 22:14:08,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 22:14:08,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 22:14:08,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 22:14:08,493 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 22:14:08,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54932da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08, skipping insertion in model container [2018-12-08 22:14:08,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 22:14:08,519 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 22:14:08,676 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:14:08,685 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 22:14:08,714 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:14:08,774 INFO L195 MainTranslator]: Completed translation [2018-12-08 22:14:08,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08 WrapperNode [2018-12-08 22:14:08,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 22:14:08,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 22:14:08,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 22:14:08,775 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 22:14:08,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 22:14:08,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 22:14:08,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 22:14:08,793 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 22:14:08,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (1/1) ... [2018-12-08 22:14:08,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 22:14:08,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 22:14:08,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 22:14:08,817 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 22:14:08,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 22:14:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 22:14:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 22:14:08,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 22:14:08,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 22:14:08,848 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 22:14:08,848 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 22:14:08,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 22:14:08,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 22:14:08,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 22:14:08,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 22:14:08,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 22:14:08,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 22:14:11,089 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 22:14:11,090 INFO L280 CfgBuilder]: Removed 15 assue(true) statements. [2018-12-08 22:14:11,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:14:11 BoogieIcfgContainer [2018-12-08 22:14:11,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 22:14:11,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 22:14:11,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 22:14:11,092 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 22:14:11,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 10:14:08" (1/3) ... [2018-12-08 22:14:11,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179d8d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:14:11, skipping insertion in model container [2018-12-08 22:14:11,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:14:08" (2/3) ... [2018-12-08 22:14:11,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179d8d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:14:11, skipping insertion in model container [2018-12-08 22:14:11,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:14:11" (3/3) ... [2018-12-08 22:14:11,094 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets_false-unreach-call_false-valid-memcleanup.i [2018-12-08 22:14:11,099 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 22:14:11,104 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-12-08 22:14:11,112 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-12-08 22:14:11,129 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 22:14:11,129 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 22:14:11,129 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 22:14:11,129 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 22:14:11,130 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 22:14:11,130 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 22:14:11,130 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 22:14:11,130 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 22:14:11,130 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 22:14:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-12-08 22:14:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 22:14:11,142 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:14:11,143 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:14:11,144 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:14:11,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:14:11,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1677476360, now seen corresponding path program 1 times [2018-12-08 22:14:11,150 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 22:14:11,151 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 22:14:11,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:14:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:14:11,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:14:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:14:11,248 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 22:14:11,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:14:11,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 22:14:11,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 22:14:11,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 22:14:11,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 22:14:11,262 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 4 states. [2018-12-08 22:14:11,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:14:11,368 INFO L93 Difference]: Finished difference Result 115 states and 191 transitions. [2018-12-08 22:14:11,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 22:14:11,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-12-08 22:14:11,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:14:11,375 INFO L225 Difference]: With dead ends: 115 [2018-12-08 22:14:11,375 INFO L226 Difference]: Without dead ends: 68 [2018-12-08 22:14:11,377 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:14:11,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-12-08 22:14:11,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 44. [2018-12-08 22:14:11,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-08 22:14:11,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-12-08 22:14:11,400 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 11 [2018-12-08 22:14:11,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:14:11,400 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-12-08 22:14:11,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 22:14:11,400 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-12-08 22:14:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 22:14:11,400 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:14:11,401 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:14:11,401 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:14:11,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:14:11,401 INFO L82 PathProgramCache]: Analyzing trace with hash 498425151, now seen corresponding path program 1 times [2018-12-08 22:14:11,401 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 22:14:11,402 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 22:14:11,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:14:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:14:11,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:14:11,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:14:11,452 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 22:14:11,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:14:11,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 22:14:11,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 22:14:11,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 22:14:11,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 22:14:11,455 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 3 states. [2018-12-08 22:14:11,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:14:11,511 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2018-12-08 22:14:11,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 22:14:11,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-12-08 22:14:11,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:14:11,512 INFO L225 Difference]: With dead ends: 47 [2018-12-08 22:14:11,513 INFO L226 Difference]: Without dead ends: 45 [2018-12-08 22:14:11,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 22:14:11,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-08 22:14:11,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2018-12-08 22:14:11,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-08 22:14:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2018-12-08 22:14:11,516 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 12 [2018-12-08 22:14:11,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:14:11,517 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2018-12-08 22:14:11,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 22:14:11,517 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2018-12-08 22:14:11,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 22:14:11,517 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:14:11,517 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:14:11,518 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:14:11,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:14:11,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1728653526, now seen corresponding path program 1 times [2018-12-08 22:14:11,518 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 22:14:11,518 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 22:14:11,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:14:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:14:11,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:15:52,743 WARN L180 SmtUtils]: Spent 1.69 m on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2018-12-08 22:15:53,275 INFO L303 Elim1Store]: Index analysis took 526 ms [2018-12-08 22:15:53,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-08 22:15:53,278 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 22:16:33,449 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:16:38,844 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:16:38,846 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:16:40,775 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:17:09,217 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:17:11,707 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:17:11,708 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:17:15,601 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:17:48,480 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:17:50,350 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:17:50,352 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:17:52,855 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:18:29,518 INFO L303 Elim1Store]: Index analysis took 545 ms [2018-12-08 22:18:29,519 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 63 treesize of output 67 [2018-12-08 22:18:29,565 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:18:29,629 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:18:29,676 INFO L303 Elim1Store]: Index analysis took 110 ms [2018-12-08 22:18:29,677 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 [2018-12-08 22:18:29,677 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-08 22:18:30,008 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:18:36,499 INFO L303 Elim1Store]: Index analysis took 301 ms [2018-12-08 22:18:36,500 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 63 treesize of output 65 [2018-12-08 22:18:36,531 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 42 [2018-12-08 22:18:36,622 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:18:36,741 INFO L303 Elim1Store]: Index analysis took 208 ms [2018-12-08 22:18:36,741 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2018-12-08 22:18:36,794 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:18:36,836 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:18:36,867 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:18:37,085 INFO L303 Elim1Store]: Index analysis took 341 ms [2018-12-08 22:18:37,086 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 61 [2018-12-08 22:18:37,086 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-12-08 22:18:37,439 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:18:37,588 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:18:38,324 INFO L303 Elim1Store]: Index analysis took 235 ms [2018-12-08 22:18:38,325 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 57 treesize of output 55 [2018-12-08 22:18:38,398 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:18:38,412 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:18:38,448 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:18:38,620 INFO L303 Elim1Store]: Index analysis took 293 ms [2018-12-08 22:18:38,665 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 6 case distinctions, treesize of input 32 treesize of output 73 [2018-12-08 22:18:38,667 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 8 xjuncts. [2018-12-08 22:18:39,880 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-12-08 22:18:40,987 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-12-08 22:18:53,617 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-12-08 22:18:55,555 INFO L303 Elim1Store]: Index analysis took 1937 ms [2018-12-08 22:18:55,556 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 65 [2018-12-08 22:18:55,703 INFO L303 Elim1Store]: Index analysis took 145 ms [2018-12-08 22:18:55,703 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:18:56,519 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:18:56,773 INFO L303 Elim1Store]: Index analysis took 1068 ms [2018-12-08 22:18:56,774 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 [2018-12-08 22:18:56,774 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-12-08 22:18:58,362 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:08,348 INFO L303 Elim1Store]: Index analysis took 2949 ms [2018-12-08 22:19:08,349 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 64 [2018-12-08 22:19:08,561 INFO L303 Elim1Store]: Index analysis took 211 ms [2018-12-08 22:19:08,561 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-12-08 22:19:08,562 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:10,042 INFO L303 Elim1Store]: Index analysis took 397 ms [2018-12-08 22:19:10,043 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 38 [2018-12-08 22:19:10,043 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:11,214 INFO L303 Elim1Store]: Index analysis took 581 ms [2018-12-08 22:19:11,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 63 [2018-12-08 22:19:11,289 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 47 [2018-12-08 22:19:11,289 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:13,134 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:13,199 INFO L303 Elim1Store]: Index analysis took 164 ms [2018-12-08 22:19:13,200 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 39 treesize of output 49 [2018-12-08 22:19:13,259 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:13,301 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:13,330 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:13,606 INFO L303 Elim1Store]: Index analysis took 404 ms [2018-12-08 22:19:13,606 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 25 treesize of output 52 [2018-12-08 22:19:13,607 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:14,289 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:15,760 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:15,797 INFO L303 Elim1Store]: Index analysis took 104 ms [2018-12-08 22:19:15,798 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 39 [2018-12-08 22:19:15,798 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:17,560 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:17,591 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:17,619 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:17,892 INFO L303 Elim1Store]: Index analysis took 567 ms [2018-12-08 22:19:17,893 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 47 treesize of output 57 [2018-12-08 22:19:17,893 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:19,029 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:19,067 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 41 treesize of output 51 [2018-12-08 22:19:19,185 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:19,228 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:19,255 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:19,537 INFO L303 Elim1Store]: Index analysis took 468 ms [2018-12-08 22:19:19,537 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 58 [2018-12-08 22:19:19,538 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:20,329 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:21,119 INFO L267 ElimStorePlain]: Start of recursive call 30: 5 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 22:19:22,286 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-12-08 22:19:25,497 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-12-08 22:19:46,155 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 65 treesize of output 69 [2018-12-08 22:19:46,163 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:19:46,173 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:46,207 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 [2018-12-08 22:19:46,207 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:46,264 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:46,425 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 67 [2018-12-08 22:19:46,434 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 44 [2018-12-08 22:19:46,448 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:46,459 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 44 treesize of output 49 [2018-12-08 22:19:46,490 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:46,499 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:46,503 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:46,543 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 41 treesize of output 67 [2018-12-08 22:19:46,544 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:46,665 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:46,758 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:46,906 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2018-12-08 22:19:46,921 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:46,924 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:46,933 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:47,019 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 6 case distinctions, treesize of input 38 treesize of output 88 [2018-12-08 22:19:47,024 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-12-08 22:19:47,024 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:47,373 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:47,377 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:47,379 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:47,380 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 22:19:47,423 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 0 case distinctions, treesize of input 38 treesize of output 72 [2018-12-08 22:19:47,436 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:47,439 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:47,444 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:47,490 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 73 [2018-12-08 22:19:47,490 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:47,551 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:48,248 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,250 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,252 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,256 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,262 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 72 [2018-12-08 22:19:48,333 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,338 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,345 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,351 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,359 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,365 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,373 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,455 INFO L303 Elim1Store]: Index analysis took 139 ms [2018-12-08 22:19:48,456 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 84 [2018-12-08 22:19:48,457 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:48,585 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:48,854 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,857 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,858 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 22:19:48,860 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,872 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 72 [2018-12-08 22:19:48,880 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,882 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:48,883 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 22:19:48,893 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 65 [2018-12-08 22:19:48,893 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:48,933 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:49,228 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:49,233 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:49,259 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:49,328 INFO L303 Elim1Store]: Index analysis took 115 ms [2018-12-08 22:19:49,354 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 76 [2018-12-08 22:19:49,363 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:49,365 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:49,366 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 22:19:49,368 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:49,370 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:49,384 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 101 [2018-12-08 22:19:49,384 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:49,555 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:49,557 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:49,574 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:49,640 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 85 [2018-12-08 22:19:49,640 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 2 xjuncts. [2018-12-08 22:19:49,868 INFO L267 ElimStorePlain]: Start of recursive call 54: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-12-08 22:19:50,507 INFO L267 ElimStorePlain]: Start of recursive call 46: 8 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-12-08 22:19:50,851 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-12-08 22:19:51,221 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-12-08 22:19:51,707 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-12-08 22:19:51,952 INFO L303 Elim1Store]: Index analysis took 244 ms [2018-12-08 22:19:51,953 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 67 [2018-12-08 22:19:51,966 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:19:52,002 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:52,044 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 [2018-12-08 22:19:52,044 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,111 INFO L267 ElimStorePlain]: Start of recursive call 58: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,360 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 66 [2018-12-08 22:19:52,370 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 29 treesize of output 25 [2018-12-08 22:19:52,370 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,487 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 61 [2018-12-08 22:19:52,495 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:52,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 52 [2018-12-08 22:19:52,502 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,591 INFO L267 ElimStorePlain]: Start of recursive call 62: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 22:19:52,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 42 [2018-12-08 22:19:52,688 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:52,694 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 31 [2018-12-08 22:19:52,703 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:52,706 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:52,709 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:52,719 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 [2018-12-08 22:19:52,720 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,751 INFO L267 ElimStorePlain]: Start of recursive call 65: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,794 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 22:19:52,805 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 17 treesize of output 19 [2018-12-08 22:19:52,820 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 19 treesize of output 22 [2018-12-08 22:19:52,820 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,840 INFO L267 ElimStorePlain]: Start of recursive call 68: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,860 INFO L267 ElimStorePlain]: Start of recursive call 67: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,900 INFO L267 ElimStorePlain]: Start of recursive call 64: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,912 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 55 [2018-12-08 22:19:52,923 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:52,929 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 31 [2018-12-08 22:19:52,940 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:52,943 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:52,946 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:52,959 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 50 [2018-12-08 22:19:52,959 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:52,994 INFO L267 ElimStorePlain]: Start of recursive call 71: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:53,044 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 22:19:53,057 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-12-08 22:19:53,076 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 19 treesize of output 22 [2018-12-08 22:19:53,077 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:53,097 INFO L267 ElimStorePlain]: Start of recursive call 74: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:53,117 INFO L267 ElimStorePlain]: Start of recursive call 73: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:53,157 INFO L267 ElimStorePlain]: Start of recursive call 70: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:53,282 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-12-08 22:19:53,399 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-12-08 22:19:54,532 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 54 [2018-12-08 22:19:54,543 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:54,547 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:54,554 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:54,613 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 31 treesize of output 63 [2018-12-08 22:19:54,630 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:54,634 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:54,646 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:54,695 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 70 [2018-12-08 22:19:54,696 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 4 xjuncts. [2018-12-08 22:19:54,907 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:54,908 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:54,910 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:54,910 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 22:19:54,916 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 31 treesize of output 50 [2018-12-08 22:19:54,916 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,208 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,209 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,211 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,212 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,214 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,221 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 68 [2018-12-08 22:19:55,222 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,350 INFO L267 ElimStorePlain]: Start of recursive call 77: 4 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-12-08 22:19:55,483 INFO L267 ElimStorePlain]: Start of recursive call 76: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-12-08 22:19:55,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 52 [2018-12-08 22:19:55,522 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,531 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 0 case distinctions, treesize of input 24 treesize of output 36 [2018-12-08 22:19:55,540 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,542 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,546 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,556 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 21 treesize of output 40 [2018-12-08 22:19:55,556 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,574 INFO L267 ElimStorePlain]: Start of recursive call 82: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,605 INFO L267 ElimStorePlain]: Start of recursive call 81: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 52 [2018-12-08 22:19:55,640 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,641 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 22:19:55,644 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 0 case distinctions, treesize of input 24 treesize of output 39 [2018-12-08 22:19:55,650 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,654 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 21 treesize of output 26 [2018-12-08 22:19:55,654 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,666 INFO L267 ElimStorePlain]: Start of recursive call 85: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,692 INFO L267 ElimStorePlain]: Start of recursive call 84: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 52 [2018-12-08 22:19:55,768 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,776 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,779 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,798 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 48 [2018-12-08 22:19:55,807 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,809 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,814 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,816 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,820 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:55,840 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 65 [2018-12-08 22:19:55,840 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,865 INFO L267 ElimStorePlain]: Start of recursive call 88: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,904 INFO L267 ElimStorePlain]: Start of recursive call 87: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,923 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2018-12-08 22:19:55,928 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-12-08 22:19:55,933 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 14 treesize of output 15 [2018-12-08 22:19:55,933 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,947 INFO L267 ElimStorePlain]: Start of recursive call 91: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:55,978 INFO L267 ElimStorePlain]: Start of recursive call 90: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:56,004 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 72 treesize of output 59 [2018-12-08 22:19:56,012 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:56,014 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:56,015 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 22:19:56,022 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 45 [2018-12-08 22:19:56,029 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:56,037 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 30 [2018-12-08 22:19:56,037 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:56,057 INFO L267 ElimStorePlain]: Start of recursive call 94: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:56,086 INFO L267 ElimStorePlain]: Start of recursive call 93: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:19:56,760 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: 4 dim-0 vars, and 35 xjuncts. [2018-12-08 22:19:56,760 INFO L202 ElimStorePlain]: Needed 95 recursive calls to eliminate 10 variables, input treesize:212, output treesize:4316 [2018-12-08 22:19:58,219 WARN L180 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 181 DAG size of output: 109 [2018-12-08 22:19:58,928 WARN L180 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-12-08 22:19:58,976 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 122 [2018-12-08 22:19:58,982 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:58,985 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 105 treesize of output 90 [2018-12-08 22:19:58,986 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:19:59,068 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:59,070 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 105 treesize of output 84 [2018-12-08 22:19:59,071 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:19:59,171 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2018-12-08 22:19:59,171 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:59,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 65 [2018-12-08 22:19:59,235 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:59,295 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-08 22:19:59,913 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:59,915 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 88 treesize of output 79 [2018-12-08 22:19:59,919 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2018-12-08 22:19:59,920 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:19:59,937 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:19:59,937 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-12-08 22:19:59,938 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 22:19:59,949 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:00,492 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 108 treesize of output 91 [2018-12-08 22:20:00,495 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:00,495 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-12-08 22:20:00,496 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:00,514 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2018-12-08 22:20:00,515 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:00,528 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:01,016 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:01,017 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:01,018 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-12-08 22:20:01,023 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:01,024 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:01,030 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 27 [2018-12-08 22:20:01,031 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-08 22:20:01,042 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 3 [2018-12-08 22:20:01,042 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:01,047 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:01,515 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 53 treesize of output 39 [2018-12-08 22:20:01,517 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 32 treesize of output 16 [2018-12-08 22:20:01,517 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:01,527 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:01,528 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 10 [2018-12-08 22:20:01,528 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:01,535 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:01,961 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 100 treesize of output 77 [2018-12-08 22:20:01,965 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:01,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2018-12-08 22:20:01,967 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:01,993 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 3 [2018-12-08 22:20:01,993 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:02,011 INFO L267 ElimStorePlain]: Start of recursive call 19: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:02,408 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 56 [2018-12-08 22:20:02,413 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:02,414 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 42 treesize of output 36 [2018-12-08 22:20:02,414 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:02,450 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 19 [2018-12-08 22:20:02,451 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:02,481 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:02,482 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 43 treesize of output 37 [2018-12-08 22:20:02,482 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:02,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-12-08 22:20:02,506 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:02,521 INFO L267 ElimStorePlain]: Start of recursive call 22: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:02,529 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 65 treesize of output 49 [2018-12-08 22:20:02,533 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:02,534 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 17 treesize of output 10 [2018-12-08 22:20:02,534 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:02,544 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 [2018-12-08 22:20:02,544 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:02,552 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:02,809 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:02,811 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 102 treesize of output 85 [2018-12-08 22:20:02,815 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 29 [2018-12-08 22:20:02,815 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:02,829 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:03,060 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 45 treesize of output 35 [2018-12-08 22:20:03,063 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 16 treesize of output 3 [2018-12-08 22:20:03,063 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,079 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,079 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 [2018-12-08 22:20:03,079 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,085 INFO L267 ElimStorePlain]: Start of recursive call 32: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,276 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 114 [2018-12-08 22:20:03,282 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 74 treesize of output 76 [2018-12-08 22:20:03,283 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,313 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,325 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 81 [2018-12-08 22:20:03,326 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-08 22:20:03,369 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-08 22:20:03,578 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,579 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,580 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2018-12-08 22:20:03,583 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,602 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 27 [2018-12-08 22:20:03,602 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,612 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,612 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 16 treesize of output 8 [2018-12-08 22:20:03,612 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,618 INFO L267 ElimStorePlain]: Start of recursive call 38: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,790 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,791 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,791 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 60 [2018-12-08 22:20:03,795 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,796 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,813 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,839 INFO L478 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 71 [2018-12-08 22:20:03,839 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-08 22:20:03,860 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 25 treesize of output 14 [2018-12-08 22:20:03,861 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,865 INFO L267 ElimStorePlain]: Start of recursive call 41: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,869 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 60 treesize of output 44 [2018-12-08 22:20:03,872 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-12-08 22:20:03,873 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:03,892 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:03,894 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2018-12-08 22:20:03,894 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,899 INFO L267 ElimStorePlain]: Start of recursive call 44: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:03,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 12 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-12-08 22:20:03,976 INFO L202 ElimStorePlain]: Needed 46 recursive calls to eliminate 20 variables, input treesize:691, output treesize:11 [2018-12-08 22:20:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:20:03,998 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 22:20:04,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:20:04,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 22:20:04,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 22:20:04,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 22:20:04,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:20:04,000 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 5 states. [2018-12-08 22:20:08,020 WARN L180 SmtUtils]: Spent 2.57 s on a formula simplification that was a NOOP. DAG size: 192 [2018-12-08 22:20:11,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:20:11,962 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2018-12-08 22:20:11,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 22:20:11,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-12-08 22:20:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:20:11,964 INFO L225 Difference]: With dead ends: 46 [2018-12-08 22:20:11,964 INFO L226 Difference]: Without dead ends: 31 [2018-12-08 22:20:11,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 22:20:11,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-08 22:20:11,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-12-08 22:20:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-08 22:20:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2018-12-08 22:20:11,967 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 13 [2018-12-08 22:20:11,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:20:11,967 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2018-12-08 22:20:11,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 22:20:11,967 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2018-12-08 22:20:11,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 22:20:11,967 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:20:11,967 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:20:11,968 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:20:11,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:20:11,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1442173420, now seen corresponding path program 1 times [2018-12-08 22:20:11,968 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 22:20:11,968 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 22:20:11,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:20:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:20:12,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:20:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:20:12,010 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 22:20:12,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:20:12,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 22:20:12,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 22:20:12,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 22:20:12,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 22:20:12,012 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 3 states. [2018-12-08 22:20:13,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:20:13,006 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2018-12-08 22:20:13,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 22:20:13,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-08 22:20:13,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:20:13,007 INFO L225 Difference]: With dead ends: 31 [2018-12-08 22:20:13,007 INFO L226 Difference]: Without dead ends: 29 [2018-12-08 22:20:13,008 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 22:20:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-08 22:20:13,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-12-08 22:20:13,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-08 22:20:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2018-12-08 22:20:13,010 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 13 [2018-12-08 22:20:13,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:20:13,010 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2018-12-08 22:20:13,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 22:20:13,011 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2018-12-08 22:20:13,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 22:20:13,011 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:20:13,011 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:20:13,011 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:20:13,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:20:13,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1987574280, now seen corresponding path program 1 times [2018-12-08 22:20:13,011 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 22:20:13,011 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 22:20:13,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:20:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:20:13,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:20:14,021 WARN L180 SmtUtils]: Spent 910.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-12-08 22:20:14,096 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:14,098 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2018-12-08 22:20:14,222 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:14,310 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:14,311 INFO L303 Elim1Store]: Index analysis took 183 ms [2018-12-08 22:20:14,311 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 42 [2018-12-08 22:20:14,345 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 30 treesize of output 36 [2018-12-08 22:20:14,345 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:15,130 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:15,564 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:16,906 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:16,943 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:17,772 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:17,818 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:18,362 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:18,437 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:19,144 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 61 treesize of output 44 [2018-12-08 22:20:19,156 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-12-08 22:20:19,179 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:19,190 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 31 [2018-12-08 22:20:19,210 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:19,218 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:19,224 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:19,261 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-12-08 22:20:19,262 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:19,354 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:19,412 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:19,549 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 51 treesize of output 52 [2018-12-08 22:20:19,561 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-12-08 22:20:19,577 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:19,584 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 [2018-12-08 22:20:19,598 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:19,601 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:19,605 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:19,628 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 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 39 [2018-12-08 22:20:19,628 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:19,670 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:19,693 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:19,741 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:19,784 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:19,985 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 68 treesize of output 77 [2018-12-08 22:20:19,995 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-12-08 22:20:20,008 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:20,013 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-12-08 22:20:20,014 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,033 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,082 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,216 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 68 treesize of output 75 [2018-12-08 22:20:20,226 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:20,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-12-08 22:20:20,230 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,271 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,339 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:20,339 INFO L202 ElimStorePlain]: Needed 23 recursive calls to eliminate 11 variables, input treesize:152, output treesize:59 [2018-12-08 22:20:20,375 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:20,377 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:20,378 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:20,379 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 22:20:20,380 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 26 treesize of output 25 [2018-12-08 22:20:20,380 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,478 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 47 treesize of output 68 [2018-12-08 22:20:20,485 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-12-08 22:20:20,485 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,507 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:20,547 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:87, output treesize:59 [2018-12-08 22:20:20,624 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 45 treesize of output 66 [2018-12-08 22:20:20,632 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-12-08 22:20:20,632 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,664 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:20,718 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:72, output treesize:68 [2018-12-08 22:20:20,860 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 67 [2018-12-08 22:20:20,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 [2018-12-08 22:20:20,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,904 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 [2018-12-08 22:20:20,905 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select 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 [2018-12-08 22:20:20,921 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,935 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-12-08 22:20:20,935 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,941 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,959 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:20,959 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 8 variables, input treesize:79, output treesize:7 [2018-12-08 22:20:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:20:20,982 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 22:20:20,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:20:20,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 22:20:20,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 22:20:20,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 22:20:20,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 22:20:20,985 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 7 states. [2018-12-08 22:20:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:20:33,202 INFO L93 Difference]: Finished difference Result 87 states and 108 transitions. [2018-12-08 22:20:33,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 22:20:33,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-08 22:20:33,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:20:33,204 INFO L225 Difference]: With dead ends: 87 [2018-12-08 22:20:33,204 INFO L226 Difference]: Without dead ends: 65 [2018-12-08 22:20:33,205 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-12-08 22:20:33,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-12-08 22:20:33,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 37. [2018-12-08 22:20:33,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-08 22:20:33,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-12-08 22:20:33,211 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 19 [2018-12-08 22:20:33,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:20:33,211 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-12-08 22:20:33,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 22:20:33,211 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-12-08 22:20:33,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 22:20:33,211 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:20:33,212 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:20:33,212 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:20:33,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:20:33,212 INFO L82 PathProgramCache]: Analyzing trace with hash -315623446, now seen corresponding path program 1 times [2018-12-08 22:20:33,212 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 22:20:33,212 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 22:20:33,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:20:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:20:33,318 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:20:34,512 WARN L180 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2018-12-08 22:20:34,583 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:34,584 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2018-12-08 22:20:34,684 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:34,702 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:34,703 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 27 treesize of output 42 [2018-12-08 22:20:34,717 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2018-12-08 22:20:34,717 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:34,934 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:35,208 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:35,739 INFO L303 Elim1Store]: Index analysis took 136 ms [2018-12-08 22:20:35,740 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 37 [2018-12-08 22:20:35,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:20:35,785 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:35,786 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 [2018-12-08 22:20:35,786 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:35,858 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,099 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 36 treesize of output 37 [2018-12-08 22:20:36,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-12-08 22:20:36,109 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,155 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,195 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,348 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:36,358 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:36,499 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 63 [2018-12-08 22:20:36,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:20:36,510 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:36,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-12-08 22:20:36,515 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,532 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,606 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 63 [2018-12-08 22:20:36,612 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-12-08 22:20:36,617 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:36,621 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 31 [2018-12-08 22:20:36,628 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:36,630 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:36,632 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:36,638 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 [2018-12-08 22:20:36,638 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,659 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,675 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,716 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,748 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:36,809 INFO L202 ElimStorePlain]: Needed 18 recursive calls to eliminate 8 variables, input treesize:145, output treesize:134 [2018-12-08 22:20:36,856 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:36,858 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:36,861 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:36,862 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 22:20:36,863 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 38 treesize of output 61 [2018-12-08 22:20:36,863 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:36,976 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 0 case distinctions, treesize of input 130 treesize of output 113 [2018-12-08 22:20:36,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-12-08 22:20:36,985 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:37,030 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:37,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:37,086 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:150, output treesize:133 [2018-12-08 22:20:37,189 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 0 case distinctions, treesize of input 145 treesize of output 126 [2018-12-08 22:20:37,200 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:37,204 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-12-08 22:20:37,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:37,250 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:37,308 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:37,308 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:152, output treesize:133 [2018-12-08 22:20:37,844 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 0 case distinctions, treesize of input 131 treesize of output 82 [2018-12-08 22:20:37,852 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:37,853 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 [2018-12-08 22:20:37,853 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:37,893 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 19 [2018-12-08 22:20:37,893 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:37,923 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:37,925 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 26 treesize of output 19 [2018-12-08 22:20:37,926 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:37,935 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-08 22:20:37,936 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:37,941 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:37,947 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:37,947 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:135, output treesize:4 [2018-12-08 22:20:37,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:20:37,965 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 22:20:38,002 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:38,006 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:38,010 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:38,010 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:18 [2018-12-08 22:20:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:20:40,115 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:20:40,115 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 22:20:40,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:20:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:20:40,145 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:20:41,148 WARN L180 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2018-12-08 22:20:41,181 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:41,182 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2018-12-08 22:20:41,231 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:41,245 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:41,246 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 25 treesize of output 40 [2018-12-08 22:20:41,262 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 34 [2018-12-08 22:20:41,262 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:41,513 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:41,754 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:42,261 INFO L303 Elim1Store]: Index analysis took 110 ms [2018-12-08 22:20:42,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 37 [2018-12-08 22:20:42,274 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:20:42,311 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:42,312 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 [2018-12-08 22:20:42,312 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:42,403 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:42,653 INFO L303 Elim1Store]: Index analysis took 129 ms [2018-12-08 22:20:42,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 37 [2018-12-08 22:20:42,663 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-12-08 22:20:42,663 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:42,700 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:42,732 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:42,894 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:42,904 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:43,050 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 63 [2018-12-08 22:20:43,055 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:20:43,062 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:43,066 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-12-08 22:20:43,067 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,085 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,173 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 63 [2018-12-08 22:20:43,180 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-12-08 22:20:43,190 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:43,195 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 31 [2018-12-08 22:20:43,202 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:43,205 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:43,207 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:43,214 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 [2018-12-08 22:20:43,214 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,239 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,259 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,301 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,338 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:43,404 INFO L202 ElimStorePlain]: Needed 18 recursive calls to eliminate 8 variables, input treesize:142, output treesize:130 [2018-12-08 22:20:43,487 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:43,490 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:43,492 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:43,494 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:43,495 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 39 treesize of output 61 [2018-12-08 22:20:43,495 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,596 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 0 case distinctions, treesize of input 130 treesize of output 113 [2018-12-08 22:20:43,603 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-12-08 22:20:43,604 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,657 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:43,713 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:148, output treesize:130 [2018-12-08 22:20:43,871 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 0 case distinctions, treesize of input 145 treesize of output 126 [2018-12-08 22:20:43,884 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:43,892 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-12-08 22:20:43,893 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:43,950 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:44,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:44,000 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:149, output treesize:130 [2018-12-08 22:20:44,196 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 0 case distinctions, treesize of input 133 treesize of output 84 [2018-12-08 22:20:44,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 25 [2018-12-08 22:20:44,203 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:44,251 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:44,252 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-12-08 22:20:44,252 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:44,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-08 22:20:44,279 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:44,315 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:20:44,318 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2018-12-08 22:20:44,319 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 22:20:44,327 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:44,336 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:20:44,336 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:137, output treesize:4 [2018-12-08 22:20:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:20:44,338 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 22:20:44,340 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:44,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:44,350 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:20:44,351 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:18 [2018-12-08 22:20:44,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:20:44,464 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-08 22:20:44,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7] total 15 [2018-12-08 22:20:44,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-08 22:20:44,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-08 22:20:44,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-12-08 22:20:44,464 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 15 states. [2018-12-08 22:20:50,654 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-12-08 22:20:53,060 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-12-08 22:20:53,334 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2018-12-08 22:20:57,680 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-12-08 22:21:00,214 WARN L180 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 44 [2018-12-08 22:21:02,756 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 39 [2018-12-08 22:21:03,437 WARN L180 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-12-08 22:21:04,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:21:04,535 INFO L93 Difference]: Finished difference Result 116 states and 147 transitions. [2018-12-08 22:21:04,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 22:21:04,536 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 20 [2018-12-08 22:21:04,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:21:04,537 INFO L225 Difference]: With dead ends: 116 [2018-12-08 22:21:04,537 INFO L226 Difference]: Without dead ends: 114 [2018-12-08 22:21:04,537 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=161, Invalid=439, Unknown=0, NotChecked=0, Total=600 [2018-12-08 22:21:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-12-08 22:21:04,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 59. [2018-12-08 22:21:04,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-12-08 22:21:04,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2018-12-08 22:21:04,545 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 20 [2018-12-08 22:21:04,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:21:04,545 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2018-12-08 22:21:04,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-08 22:21:04,545 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2018-12-08 22:21:04,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 22:21:04,545 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:21:04,545 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:21:04,546 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:21:04,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:21:04,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1629998095, now seen corresponding path program 2 times [2018-12-08 22:21:04,546 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 22:21:04,546 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 22:21:04,573 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-08 22:21:04,665 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 22:21:04,665 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 22:21:04,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:21:33,604 WARN L180 SmtUtils]: Spent 28.93 s on a formula simplification. DAG size of input: 110 DAG size of output: 84 [2018-12-08 22:21:34,363 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:21:34,364 INFO L303 Elim1Store]: Index analysis took 759 ms [2018-12-08 22:21:34,365 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2018-12-08 22:21:35,119 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:21:35,472 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:21:35,472 INFO L303 Elim1Store]: Index analysis took 1080 ms [2018-12-08 22:21:35,473 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 27 treesize of output 42 [2018-12-08 22:21:35,652 INFO L303 Elim1Store]: Index analysis took 178 ms [2018-12-08 22:21:35,653 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2018-12-08 22:21:35,653 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:21:38,569 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:21:41,792 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:21:52,245 INFO L303 Elim1Store]: Index analysis took 1454 ms [2018-12-08 22:21:52,245 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 28 treesize of output 33 [2018-12-08 22:21:52,617 INFO L303 Elim1Store]: Index analysis took 371 ms [2018-12-08 22:21:52,618 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:21:53,028 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:21:53,423 INFO L303 Elim1Store]: Index analysis took 805 ms [2018-12-08 22:21:53,424 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 [2018-12-08 22:21:53,424 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-08 22:21:54,917 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:21:57,951 INFO L303 Elim1Store]: Index analysis took 1404 ms [2018-12-08 22:21:57,951 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 33 [2018-12-08 22:21:58,015 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-12-08 22:21:58,015 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-08 22:21:58,936 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:21:59,609 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:02,610 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:02,725 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:05,554 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:05,690 INFO L303 Elim1Store]: Index analysis took 809 ms [2018-12-08 22:22:05,690 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 49 treesize of output 73 [2018-12-08 22:22:05,747 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-12-08 22:22:05,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-12-08 22:22:05,785 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:06,120 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:07,080 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:07,719 INFO L303 Elim1Store]: Index analysis took 744 ms [2018-12-08 22:22:07,720 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 52 treesize of output 69 [2018-12-08 22:22:07,752 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-12-08 22:22:07,815 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:07,874 INFO L303 Elim1Store]: Index analysis took 121 ms [2018-12-08 22:22:07,874 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 31 [2018-12-08 22:22:07,954 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:07,993 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:08,043 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:08,195 INFO L303 Elim1Store]: Index analysis took 319 ms [2018-12-08 22:22:08,195 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 [2018-12-08 22:22:08,195 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:08,418 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:08,563 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:09,059 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:09,462 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:10,621 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:10,650 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:11,429 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:11,456 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:11,930 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:11,976 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 69 [2018-12-08 22:22:12,291 WARN L180 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-12-08 22:22:12,300 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:22:12,312 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:12,313 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 [2018-12-08 22:22:12,313 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:12,343 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:12,436 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:12,487 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 87 [2018-12-08 22:22:12,496 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-12-08 22:22:12,512 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-12-08 22:22:12,539 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 34 [2018-12-08 22:22:12,539 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:12,560 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:12,580 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:12,650 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:12,684 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 107 [2018-12-08 22:22:12,692 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-12-08 22:22:12,703 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:12,707 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 [2018-12-08 22:22:12,717 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:12,718 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:12,720 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:12,727 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 [2018-12-08 22:22:12,728 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:12,753 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:12,772 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:12,815 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:12,855 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:12,894 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:13,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:13,001 INFO L202 ElimStorePlain]: Needed 33 recursive calls to eliminate 11 variables, input treesize:235, output treesize:185 [2018-12-08 22:22:13,056 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,058 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,060 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,062 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,063 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 22:22:13,063 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 61 [2018-12-08 22:22:13,064 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:13,179 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,198 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 154 [2018-12-08 22:22:13,226 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-12-08 22:22:13,226 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:13,286 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:13,370 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,396 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 128 [2018-12-08 22:22:13,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-12-08 22:22:13,403 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:13,435 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:13,499 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. [2018-12-08 22:22:13,500 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:212, output treesize:193 [2018-12-08 22:22:13,581 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,624 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,638 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 167 [2018-12-08 22:22:13,649 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-12-08 22:22:13,653 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:13,729 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:13,852 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,893 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 141 [2018-12-08 22:22:13,903 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:13,906 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 [2018-12-08 22:22:13,907 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:13,938 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,003 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:14,004 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:231, output treesize:193 [2018-12-08 22:22:14,170 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:14,186 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 98 [2018-12-08 22:22:14,196 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-08 22:22:14,196 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,235 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:14,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-12-08 22:22:14,236 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,261 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 16 treesize of output 3 [2018-12-08 22:22:14,261 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,272 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,311 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:14,311 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:200, output treesize:132 [2018-12-08 22:22:14,363 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:14,368 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:14,375 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 84 [2018-12-08 22:22:14,382 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:14,400 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 33 [2018-12-08 22:22:14,400 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,432 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-08 22:22:14,432 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,455 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:22:14,456 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 [2018-12-08 22:22:14,456 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,470 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2018-12-08 22:22:14,470 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,476 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:22:14,483 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:133, output treesize:4 [2018-12-08 22:22:14,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:22:14,512 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 22:22:14,605 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:14,613 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:14,630 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:14,636 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:14,642 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-08 22:22:14,642 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:57, output treesize:46 [2018-12-08 22:22:20,938 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:22:20,940 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 22:22:20,940 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a5b1703-8d8c-4e7c-a6a4-758b5d87dc3d/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 22:22:20,946 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-08 22:22:32,976 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 22:22:32,976 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 22:22:32,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 22:23:02,412 WARN L180 SmtUtils]: Spent 29.43 s on a formula simplification. DAG size of input: 112 DAG size of output: 86 [2018-12-08 22:23:03,410 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:03,412 INFO L303 Elim1Store]: Index analysis took 999 ms [2018-12-08 22:23:03,412 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2018-12-08 22:23:04,538 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:04,677 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:04,678 INFO L303 Elim1Store]: Index analysis took 1238 ms [2018-12-08 22:23:04,679 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 25 treesize of output 40 [2018-12-08 22:23:04,805 INFO L303 Elim1Store]: Index analysis took 125 ms [2018-12-08 22:23:04,805 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 34 [2018-12-08 22:23:04,805 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 22:23:09,821 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:23:14,482 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:23:23,402 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:23:24,370 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:23:32,915 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:23:33,067 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 22:23:36,789 INFO L303 Elim1Store]: Index analysis took 1097 ms [2018-12-08 22:23:36,790 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 75 treesize of output 67 [2018-12-08 22:23:36,843 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-08 22:23:36,936 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:37,157 INFO L303 Elim1Store]: Index analysis took 313 ms [2018-12-08 22:23:37,158 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 [2018-12-08 22:23:37,158 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-08 22:23:37,631 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:23:39,336 INFO L303 Elim1Store]: Index analysis took 879 ms [2018-12-08 22:23:39,337 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 66 treesize of output 70 [2018-12-08 22:23:39,387 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-12-08 22:23:39,387 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-08 22:23:40,311 INFO L303 Elim1Store]: Index analysis took 335 ms [2018-12-08 22:23:40,311 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 64 [2018-12-08 22:23:40,356 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:40,421 INFO L303 Elim1Store]: Index analysis took 109 ms [2018-12-08 22:23:40,422 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 21 treesize of output 31 [2018-12-08 22:23:40,486 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:40,510 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:40,528 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:40,803 INFO L303 Elim1Store]: Index analysis took 381 ms [2018-12-08 22:23:40,804 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 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 48 [2018-12-08 22:23:40,804 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-12-08 22:23:41,144 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 22:23:41,853 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:41,983 INFO L303 Elim1Store]: Index analysis took 191 ms [2018-12-08 22:23:41,983 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 22 treesize of output 14 [2018-12-08 22:23:41,983 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-08 22:23:42,528 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2018-12-08 22:23:42,626 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:42,692 INFO L303 Elim1Store]: Index analysis took 163 ms [2018-12-08 22:23:42,692 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 22 treesize of output 32 [2018-12-08 22:23:42,775 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:42,818 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:42,839 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:42,966 INFO L303 Elim1Store]: Index analysis took 273 ms [2018-12-08 22:23:42,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 46 [2018-12-08 22:23:43,017 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:43,030 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:43,093 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 22:23:43,208 INFO L303 Elim1Store]: Index analysis took 240 ms [2018-12-08 22:23:43,409 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 22:23:43,410 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_86 input size 18 context size 18 output size 18 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.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) [2018-12-08 22:23:43,414 INFO L168 Benchmark]: Toolchain (without parser) took 574924.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 220.7 MB). Free memory was 939.4 MB in the beginning and 1.2 GB in the end (delta: -265.2 MB). Peak memory consumption was 255.9 MB. Max. memory is 11.5 GB. [2018-12-08 22:23:43,414 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:23:43,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-12-08 22:23:43,415 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:23:43,415 INFO L168 Benchmark]: Boogie Preprocessor took 23.45 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. [2018-12-08 22:23:43,415 INFO L168 Benchmark]: RCFGBuilder took 2273.14 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: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 11.5 GB. [2018-12-08 22:23:43,416 INFO L168 Benchmark]: TraceAbstraction took 572322.58 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 84.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -136.5 MB). Peak memory consumption was 248.8 MB. Max. memory is 11.5 GB. [2018-12-08 22:23:43,417 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.45 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 2273.14 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: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 572322.58 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 84.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -136.5 MB). Peak memory consumption was 248.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_86 input size 18 context size 18 output size 18 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_86 input size 18 context size 18 output size 18: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...