./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/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 b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/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 b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_7 term size 13 --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:53:35,729 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:53:35,730 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:53:35,739 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:53:35,740 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:53:35,740 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:53:35,741 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:53:35,743 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:53:35,744 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:53:35,745 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:53:35,746 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:53:35,746 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:53:35,747 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:53:35,748 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:53:35,749 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:53:35,749 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:53:35,750 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:53:35,752 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:53:35,753 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:53:35,754 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:53:35,755 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:53:35,756 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:53:35,758 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:53:35,758 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:53:35,758 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:53:35,759 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:53:35,760 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:53:35,761 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:53:35,761 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:53:35,762 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:53:35,762 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:53:35,763 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:53:35,763 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:53:35,764 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:53:35,764 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:53:35,765 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:53:35,765 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:53:35,776 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:53:35,776 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:53:35,776 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:53:35,777 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:53:35,777 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:53:35,777 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:53:35,777 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:53:35,777 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:53:35,777 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:53:35,777 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:53:35,778 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:53:35,778 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:53:35,778 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:53:35,778 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:53:35,779 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:53:35,779 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:53:35,779 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:53:35,780 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:53:35,781 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:53:35,781 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:53:35,781 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:53:35,781 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:53:35,781 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:53:35,781 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:53:35,782 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:53:35,782 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:53:35,782 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:53:35,782 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:53:35,782 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:53:35,782 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:53:35,782 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:53:35,782 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:53:35,783 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:53:35,783 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:53:35,783 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_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/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 -> b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 [2018-10-27 00:53:35,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:53:35,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:53:35,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:53:35,823 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:53:35,823 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:53:35,824 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-10-27 00:53:35,870 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/data/440b270f2/ecc115e6bfc948a88eaf3acd60b07b2d/FLAG20a19200a [2018-10-27 00:53:36,286 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:53:36,286 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-10-27 00:53:36,303 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/data/440b270f2/ecc115e6bfc948a88eaf3acd60b07b2d/FLAG20a19200a [2018-10-27 00:53:36,315 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/data/440b270f2/ecc115e6bfc948a88eaf3acd60b07b2d [2018-10-27 00:53:36,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:53:36,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:53:36,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:53:36,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:53:36,324 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:53:36,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f100033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36, skipping insertion in model container [2018-10-27 00:53:36,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:53:36,374 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:53:36,624 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:53:36,634 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:53:36,684 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:53:36,715 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:53:36,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36 WrapperNode [2018-10-27 00:53:36,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:53:36,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:53:36,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:53:36,717 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:53:36,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:53:36,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:53:36,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:53:36,823 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:53:36,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (1/1) ... [2018-10-27 00:53:36,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:53:36,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:53:36,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:53:36,869 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:53:36,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/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 [2018-10-27 00:53:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:53:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:53:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:53:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:53:36,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:53:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:53:37,698 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:53:37,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:53:37 BoogieIcfgContainer [2018-10-27 00:53:37,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:53:37,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:53:37,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:53:37,703 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:53:37,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:53:36" (1/3) ... [2018-10-27 00:53:37,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15567fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:53:37, skipping insertion in model container [2018-10-27 00:53:37,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:53:36" (2/3) ... [2018-10-27 00:53:37,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15567fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:53:37, skipping insertion in model container [2018-10-27 00:53:37,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:53:37" (3/3) ... [2018-10-27 00:53:37,706 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-10-27 00:53:37,716 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:53:37,723 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-10-27 00:53:37,737 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-10-27 00:53:37,764 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:53:37,764 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:53:37,764 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:53:37,764 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:53:37,764 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:53:37,765 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:53:37,765 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:53:37,765 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:53:37,781 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-10-27 00:53:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 00:53:37,786 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:53:37,787 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:53:37,789 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:53:37,795 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:37,795 INFO L82 PathProgramCache]: Analyzing trace with hash 2062125563, now seen corresponding path program 1 times [2018-10-27 00:53:37,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:53:37,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:37,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:37,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:37,851 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:53:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:37,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:37,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:53:37,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:53:37,960 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:53:37,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:53:37,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:53:37,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:53:37,979 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-10-27 00:53:38,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:53:38,004 INFO L93 Difference]: Finished difference Result 110 states and 168 transitions. [2018-10-27 00:53:38,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:53:38,005 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-10-27 00:53:38,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:53:38,014 INFO L225 Difference]: With dead ends: 110 [2018-10-27 00:53:38,014 INFO L226 Difference]: Without dead ends: 50 [2018-10-27 00:53:38,017 INFO L605 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 [2018-10-27 00:53:38,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-10-27 00:53:38,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-10-27 00:53:38,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-27 00:53:38,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-10-27 00:53:38,051 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 11 [2018-10-27 00:53:38,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:53:38,051 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-10-27 00:53:38,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:53:38,051 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-10-27 00:53:38,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 00:53:38,052 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:53:38,052 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:53:38,053 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:53:38,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:38,053 INFO L82 PathProgramCache]: Analyzing trace with hash 117940442, now seen corresponding path program 1 times [2018-10-27 00:53:38,053 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:53:38,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:38,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:38,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:38,056 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:53:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:38,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:38,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:53:38,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:53:38,177 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:53:38,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:53:38,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:53:38,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:53:38,179 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 4 states. [2018-10-27 00:53:38,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:53:38,400 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-10-27 00:53:38,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:53:38,400 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-10-27 00:53:38,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:53:38,402 INFO L225 Difference]: With dead ends: 50 [2018-10-27 00:53:38,402 INFO L226 Difference]: Without dead ends: 48 [2018-10-27 00:53:38,403 INFO L605 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 [2018-10-27 00:53:38,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-27 00:53:38,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-10-27 00:53:38,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-27 00:53:38,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2018-10-27 00:53:38,408 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 13 [2018-10-27 00:53:38,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:53:38,408 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2018-10-27 00:53:38,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:53:38,408 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2018-10-27 00:53:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 00:53:38,409 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:53:38,409 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:53:38,409 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:53:38,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:38,409 INFO L82 PathProgramCache]: Analyzing trace with hash 118061590, now seen corresponding path program 1 times [2018-10-27 00:53:38,409 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:53:38,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:38,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:38,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:38,411 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:53:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:38,472 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:53:38,472 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:53:38,472 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:53:38,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:53:38,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:53:38,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:53:38,473 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 4 states. [2018-10-27 00:53:38,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:53:38,676 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-10-27 00:53:38,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:53:38,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-10-27 00:53:38,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:53:38,678 INFO L225 Difference]: With dead ends: 56 [2018-10-27 00:53:38,678 INFO L226 Difference]: Without dead ends: 54 [2018-10-27 00:53:38,678 INFO L605 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 [2018-10-27 00:53:38,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-10-27 00:53:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2018-10-27 00:53:38,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-10-27 00:53:38,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-10-27 00:53:38,684 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 13 [2018-10-27 00:53:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:53:38,684 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-10-27 00:53:38,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:53:38,685 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-10-27 00:53:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-27 00:53:38,685 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:53:38,685 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:53:38,686 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:53:38,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:38,686 INFO L82 PathProgramCache]: Analyzing trace with hash 284405904, now seen corresponding path program 1 times [2018-10-27 00:53:38,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:53:38,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:38,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:38,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:38,688 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:53:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:38,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:53:38,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:53:38,784 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:53:38,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:53:38,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:53:38,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:53:38,785 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 4 states. [2018-10-27 00:53:38,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:53:38,889 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2018-10-27 00:53:38,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:53:38,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-10-27 00:53:38,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:53:38,891 INFO L225 Difference]: With dead ends: 46 [2018-10-27 00:53:38,891 INFO L226 Difference]: Without dead ends: 44 [2018-10-27 00:53:38,891 INFO L605 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 [2018-10-27 00:53:38,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-27 00:53:38,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-10-27 00:53:38,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-27 00:53:38,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2018-10-27 00:53:38,896 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 16 [2018-10-27 00:53:38,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:53:38,897 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2018-10-27 00:53:38,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:53:38,897 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2018-10-27 00:53:38,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-27 00:53:38,897 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:53:38,897 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:53:38,898 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:53:38,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:38,898 INFO L82 PathProgramCache]: Analyzing trace with hash -401379758, now seen corresponding path program 1 times [2018-10-27 00:53:38,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:53:38,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:38,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:38,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:38,902 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:53:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:39,146 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2018-10-27 00:53:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:39,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:53:39,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:53:39,211 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:53:39,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:53:39,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:53:39,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:53:39,212 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 5 states. [2018-10-27 00:53:39,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:53:39,590 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2018-10-27 00:53:39,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 00:53:39,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-10-27 00:53:39,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:53:39,591 INFO L225 Difference]: With dead ends: 86 [2018-10-27 00:53:39,591 INFO L226 Difference]: Without dead ends: 84 [2018-10-27 00:53:39,592 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:53:39,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-10-27 00:53:39,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 63. [2018-10-27 00:53:39,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-10-27 00:53:39,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2018-10-27 00:53:39,597 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 16 [2018-10-27 00:53:39,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:53:39,598 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2018-10-27 00:53:39,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:53:39,598 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2018-10-27 00:53:39,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-27 00:53:39,598 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:53:39,598 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:53:39,599 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:53:39,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:39,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1230223667, now seen corresponding path program 1 times [2018-10-27 00:53:39,601 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:53:39,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:39,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:39,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:39,603 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:53:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:39,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:39,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:53:39,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:53:39,797 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:53:39,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:53:39,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:53:39,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:53:39,797 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 4 states. [2018-10-27 00:53:39,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:53:39,839 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2018-10-27 00:53:39,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:53:39,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-10-27 00:53:39,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:53:39,844 INFO L225 Difference]: With dead ends: 63 [2018-10-27 00:53:39,844 INFO L226 Difference]: Without dead ends: 61 [2018-10-27 00:53:39,845 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:53:39,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-10-27 00:53:39,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-10-27 00:53:39,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-10-27 00:53:39,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-10-27 00:53:39,852 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 19 [2018-10-27 00:53:39,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:53:39,852 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-10-27 00:53:39,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:53:39,852 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-10-27 00:53:39,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 00:53:39,853 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:53:39,853 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:53:39,853 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:53:39,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:39,854 INFO L82 PathProgramCache]: Analyzing trace with hash 463145248, now seen corresponding path program 1 times [2018-10-27 00:53:39,854 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:53:39,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:39,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:39,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:39,858 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:53:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:40,225 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2018-10-27 00:53:40,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:40,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:53:40,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:53:40,228 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:53:40,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:53:40,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:53:40,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:53:40,229 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 5 states. [2018-10-27 00:53:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:53:40,320 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2018-10-27 00:53:40,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 00:53:40,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-10-27 00:53:40,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:53:40,321 INFO L225 Difference]: With dead ends: 79 [2018-10-27 00:53:40,321 INFO L226 Difference]: Without dead ends: 65 [2018-10-27 00:53:40,322 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:53:40,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-10-27 00:53:40,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2018-10-27 00:53:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-10-27 00:53:40,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2018-10-27 00:53:40,329 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 22 [2018-10-27 00:53:40,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:53:40,329 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2018-10-27 00:53:40,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:53:40,330 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2018-10-27 00:53:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-27 00:53:40,330 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:53:40,331 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:53:40,331 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:53:40,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:40,331 INFO L82 PathProgramCache]: Analyzing trace with hash -315939672, now seen corresponding path program 1 times [2018-10-27 00:53:40,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:53:40,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:40,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:40,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:40,335 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:53:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:40,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:53:40,511 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:53:40,512 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2018-10-27 00:53:40,513 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [11], [14], [83], [87], [94], [98], [106], [113], [117], [125], [131], [134], [138], [141], [142], [175], [177], [201], [202], [203] [2018-10-27 00:53:40,553 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:53:40,553 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:53:41,389 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 00:53:41,390 INFO L272 AbstractInterpreter]: Visited 24 different actions 37 times. Merged at 8 different actions 12 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 62 variables. [2018-10-27 00:53:41,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:41,440 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 00:53:41,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:53:41,441 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/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 [2018-10-27 00:53:41,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:41,463 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 00:53:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:41,522 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:53:41,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 32 [2018-10-27 00:53:41,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-10-27 00:53:41,736 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:41,737 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-10-27 00:53:41,737 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:41,744 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:41,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 32 [2018-10-27 00:53:41,767 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-10-27 00:53:41,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-10-27 00:53:41,771 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:41,776 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:41,783 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:41,924 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:41,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2018-10-27 00:53:41,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-10-27 00:53:42,016 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:42,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2018-10-27 00:53:42,017 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:42,048 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:42,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-10-27 00:53:42,115 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:42,215 INFO L303 Elim1Store]: Index analysis took 150 ms [2018-10-27 00:53:42,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 42 [2018-10-27 00:53:42,600 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:42,752 INFO L303 Elim1Store]: Index analysis took 263 ms [2018-10-27 00:53:42,797 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 65 [2018-10-27 00:53:42,798 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 8 xjuncts. [2018-10-27 00:53:42,912 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:42,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 44 [2018-10-27 00:53:42,922 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:42,988 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:42,998 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 39 [2018-10-27 00:53:42,999 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:43,194 INFO L267 ElimStorePlain]: Start of recursive call 12: 4 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-10-27 00:53:43,254 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-10-27 00:53:43,352 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-10-27 00:53:43,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 32 [2018-10-27 00:53:43,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-10-27 00:53:43,485 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:43,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-10-27 00:53:43,486 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:43,491 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:43,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 32 [2018-10-27 00:53:43,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-10-27 00:53:43,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-10-27 00:53:43,508 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:43,512 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:43,518 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:43,524 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:43,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2018-10-27 00:53:43,537 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-10-27 00:53:43,541 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:43,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2018-10-27 00:53:43,542 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:43,549 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:43,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-10-27 00:53:43,563 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:43,579 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 42 [2018-10-27 00:53:43,585 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-10-27 00:53:43,585 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:43,609 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:43,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 39 [2018-10-27 00:53:43,619 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:43,652 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:43,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 65 [2018-10-27 00:53:43,673 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 8 xjuncts. [2018-10-27 00:53:43,746 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:43,760 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 39 [2018-10-27 00:53:43,761 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:43,814 INFO L267 ElimStorePlain]: Start of recursive call 26: 4 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-10-27 00:53:43,868 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-10-27 00:53:43,993 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-10-27 00:53:44,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 12 dim-0 vars, and 51 xjuncts. [2018-10-27 00:53:44,135 INFO L202 ElimStorePlain]: Needed 30 recursive calls to eliminate 3 variables, input treesize:81, output treesize:2796 [2018-10-27 00:53:44,587 WARN L179 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 48 [2018-10-27 00:53:44,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2018-10-27 00:53:44,696 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:44,697 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 10 [2018-10-27 00:53:44,697 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:44,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:44,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2018-10-27 00:53:44,754 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:44,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-10-27 00:53:44,755 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:44,762 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:44,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 53 [2018-10-27 00:53:44,817 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:44,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2018-10-27 00:53:44,825 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:44,849 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:44,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-10-27 00:53:44,909 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:44,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-10-27 00:53:44,910 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:44,913 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:44,958 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 10 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:44,958 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 14 variables, input treesize:282, output treesize:7 [2018-10-27 00:53:44,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:44,975 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 00:53:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:45,033 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 00:53:45,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2018-10-27 00:53:45,033 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 00:53:45,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 00:53:45,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 00:53:45,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-10-27 00:53:45,034 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 8 states. [2018-10-27 00:53:45,301 WARN L179 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 52 [2018-10-27 00:53:45,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:53:45,535 INFO L93 Difference]: Finished difference Result 94 states and 101 transitions. [2018-10-27 00:53:45,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 00:53:45,536 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-10-27 00:53:45,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:53:45,536 INFO L225 Difference]: With dead ends: 94 [2018-10-27 00:53:45,536 INFO L226 Difference]: Without dead ends: 67 [2018-10-27 00:53:45,537 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-10-27 00:53:45,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-10-27 00:53:45,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-10-27 00:53:45,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-10-27 00:53:45,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2018-10-27 00:53:45,542 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 26 [2018-10-27 00:53:45,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:53:45,543 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2018-10-27 00:53:45,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 00:53:45,543 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2018-10-27 00:53:45,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-27 00:53:45,544 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:53:45,544 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:53:45,544 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:53:45,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:45,544 INFO L82 PathProgramCache]: Analyzing trace with hash 2017910981, now seen corresponding path program 1 times [2018-10-27 00:53:45,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:53:45,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:45,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:45,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:45,546 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:53:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:45,752 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:53:45,752 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:53:45,752 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-10-27 00:53:45,752 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [11], [14], [16], [21], [25], [32], [36], [44], [51], [55], [63], [70], [74], [83], [87], [94], [98], [106], [109], [110], [201], [202], [203] [2018-10-27 00:53:45,756 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:53:45,756 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:53:46,569 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 00:53:46,569 INFO L272 AbstractInterpreter]: Visited 27 different actions 39 times. Merged at 12 different actions 12 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 73 variables. [2018-10-27 00:53:46,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:46,571 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 00:53:46,571 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:53:46,571 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 00:53:46,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:46,578 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 00:53:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:46,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:53:46,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-27 00:53:46,656 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-10-27 00:53:46,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-10-27 00:53:46,708 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,709 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,715 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:23, output treesize:18 [2018-10-27 00:53:46,738 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:46,738 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:46,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-10-27 00:53:46,739 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2018-10-27 00:53:46,760 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:53:46,760 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,766 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-27 00:53:46,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-27 00:53:46,771 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,774 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,775 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,781 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,781 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:59, output treesize:24 [2018-10-27 00:53:46,791 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:46,792 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:46,794 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:46,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-27 00:53:46,795 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 68 [2018-10-27 00:53:46,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:53:46,825 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2018-10-27 00:53:46,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2018-10-27 00:53:46,856 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,863 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,865 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2018-10-27 00:53:46,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-10-27 00:53:46,880 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2018-10-27 00:53:46,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:53:46,894 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,900 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,904 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:46,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-10-27 00:53:46,911 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 9 variables, input treesize:120, output treesize:23 [2018-10-27 00:53:47,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2018-10-27 00:53:47,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-10-27 00:53:47,071 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-10-27 00:53:47,160 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,161 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,164 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,164 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:32, output treesize:3 [2018-10-27 00:53:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:47,167 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 00:53:47,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 75 [2018-10-27 00:53:47,253 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-10-27 00:53:47,253 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2018-10-27 00:53:47,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2018-10-27 00:53:47,261 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,263 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-10-27 00:53:47,269 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:104, output treesize:44 [2018-10-27 00:53:47,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 103 [2018-10-27 00:53:47,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-10-27 00:53:47,313 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,320 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 52 [2018-10-27 00:53:47,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 37 [2018-10-27 00:53:47,327 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,329 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,332 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-10-27 00:53:47,337 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:173, output treesize:53 [2018-10-27 00:53:47,364 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:47,364 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 9 variables, input treesize:89, output treesize:1 [2018-10-27 00:53:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:47,395 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 00:53:47,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2018-10-27 00:53:47,395 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 00:53:47,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 00:53:47,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 00:53:47,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-10-27 00:53:47,396 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 10 states. [2018-10-27 00:53:47,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:53:47,907 INFO L93 Difference]: Finished difference Result 106 states and 115 transitions. [2018-10-27 00:53:47,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 00:53:47,908 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2018-10-27 00:53:47,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:53:47,909 INFO L225 Difference]: With dead ends: 106 [2018-10-27 00:53:47,909 INFO L226 Difference]: Without dead ends: 104 [2018-10-27 00:53:47,909 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2018-10-27 00:53:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-10-27 00:53:47,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 46. [2018-10-27 00:53:47,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-10-27 00:53:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-10-27 00:53:47,914 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 29 [2018-10-27 00:53:47,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:53:47,914 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-10-27 00:53:47,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 00:53:47,914 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-10-27 00:53:47,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-27 00:53:47,915 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:53:47,915 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:53:47,915 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:53:47,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:47,916 INFO L82 PathProgramCache]: Analyzing trace with hash -761590755, now seen corresponding path program 1 times [2018-10-27 00:53:47,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:53:47,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:47,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:47,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:53:47,917 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:53:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:48,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:48,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:53:48,157 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:53:48,157 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-10-27 00:53:48,158 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [11], [14], [16], [19], [25], [32], [36], [44], [51], [55], [63], [70], [74], [83], [87], [94], [98], [106], [113], [117], [125], [131], [134], [138], [141], [142], [175], [177], [201], [202], [203] [2018-10-27 00:53:48,160 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:53:48,160 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:53:49,082 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 00:53:49,082 INFO L272 AbstractInterpreter]: Visited 35 different actions 80 times. Merged at 24 different actions 43 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 72 variables. [2018-10-27 00:53:49,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:53:49,087 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 00:53:49,087 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:53:49,087 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 00:53:49,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:53:49,095 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 00:53:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:53:49,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:53:49,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-27 00:53:49,164 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,188 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,189 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-10-27 00:53:49,207 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:49,209 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:53:49,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-10-27 00:53:49,209 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 57 [2018-10-27 00:53:49,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:53:49,250 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,267 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-10-27 00:53:49,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-10-27 00:53:49,270 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,280 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:49,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 67 [2018-10-27 00:53:49,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 83 [2018-10-27 00:53:49,298 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:49,315 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:49,334 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:49,357 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:49,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 115 [2018-10-27 00:53:49,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:53:49,444 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 64 [2018-10-27 00:53:49,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-10-27 00:53:49,547 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,561 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 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 61 [2018-10-27 00:53:49,569 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 23 [2018-10-27 00:53:49,570 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:49,584 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:49,604 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:49,626 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:49,629 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 97 [2018-10-27 00:53:49,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:53:49,709 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 51 [2018-10-27 00:53:49,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-10-27 00:53:49,727 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 48 [2018-10-27 00:53:49,743 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-27 00:53:49,743 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,751 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,756 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,765 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,794 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:49,794 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 8 variables, input treesize:203, output treesize:77 [2018-10-27 00:53:49,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2018-10-27 00:53:49,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-10-27 00:53:49,821 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,823 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,826 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:26 [2018-10-27 00:53:49,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-10-27 00:53:49,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2018-10-27 00:53:49,873 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,876 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-10-27 00:53:49,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-10-27 00:53:49,882 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,883 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,886 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:40, output treesize:9 [2018-10-27 00:53:49,900 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-10-27 00:53:49,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-10-27 00:53:49,903 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,904 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:49,905 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-10-27 00:53:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:53:49,921 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 00:53:50,004 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-10-27 00:53:50,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-10-27 00:53:50,006 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,007 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-10-27 00:53:50,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-10-27 00:53:50,012 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,013 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,017 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:50,017 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:28, output treesize:15 [2018-10-27 00:53:50,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 141 [2018-10-27 00:53:50,228 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-10-27 00:53:50,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-10-27 00:53:50,230 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 108 [2018-10-27 00:53:50,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 66 [2018-10-27 00:53:50,241 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,276 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,287 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 50 [2018-10-27 00:53:50,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-10-27 00:53:50,329 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2018-10-27 00:53:50,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2018-10-27 00:53:50,365 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2018-10-27 00:53:50,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:50,391 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2018-10-27 00:53:50,397 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:50,408 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:53:50,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2018-10-27 00:53:50,462 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:50,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2018-10-27 00:53:50,484 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:50,486 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:50,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 25 [2018-10-27 00:53:50,491 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:50,493 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:50,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 13 [2018-10-27 00:53:50,494 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,514 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:50,576 INFO L267 ElimStorePlain]: Start of recursive call 8: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:50,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2018-10-27 00:53:50,623 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:50,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 26 [2018-10-27 00:53:50,761 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2018-10-27 00:53:50,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2018-10-27 00:53:50,764 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,766 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:50,766 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,774 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:50,785 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:50,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-10-27 00:53:50,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 13 [2018-10-27 00:53:50,806 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-10-27 00:53:50,817 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-10-27 00:53:50,829 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,842 INFO L267 ElimStorePlain]: Start of recursive call 21: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:50,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 54 [2018-10-27 00:53:50,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 61 [2018-10-27 00:53:50,951 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:50,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2018-10-27 00:53:50,957 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:50,958 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:50,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2018-10-27 00:53:50,960 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:50,962 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:50,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2018-10-27 00:53:50,964 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 31 [2018-10-27 00:53:51,108 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:51,110 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2018-10-27 00:53:51,110 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,148 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:51,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2018-10-27 00:53:51,149 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,172 INFO L267 ElimStorePlain]: Start of recursive call 26: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:51,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2018-10-27 00:53:51,196 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 48 [2018-10-27 00:53:51,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-10-27 00:53:51,277 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 31 [2018-10-27 00:53:51,309 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:51,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2018-10-27 00:53:51,311 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,327 INFO L267 ElimStorePlain]: Start of recursive call 34: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:51,349 INFO L267 ElimStorePlain]: Start of recursive call 25: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:51,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2018-10-27 00:53:51,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2018-10-27 00:53:51,435 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2018-10-27 00:53:51,450 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 15 [2018-10-27 00:53:51,462 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,470 INFO L267 ElimStorePlain]: Start of recursive call 38: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:51,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2018-10-27 00:53:51,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2018-10-27 00:53:51,477 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-10-27 00:53:51,488 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-10-27 00:53:51,497 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,503 INFO L267 ElimStorePlain]: Start of recursive call 42: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:51,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 48 [2018-10-27 00:53:51,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-10-27 00:53:51,516 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 39 [2018-10-27 00:53:51,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2018-10-27 00:53:51,612 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2018-10-27 00:53:51,614 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2018-10-27 00:53:51,616 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2018-10-27 00:53:51,649 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:51,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2018-10-27 00:53:51,660 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:51,683 INFO L267 ElimStorePlain]: Start of recursive call 48: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:51,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2018-10-27 00:53:51,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:51,987 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:51,996 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-10-27 00:53:51,996 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:52,006 INFO L267 ElimStorePlain]: Start of recursive call 54: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:53:52,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 52 [2018-10-27 00:53:52,124 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2018-10-27 00:53:52,126 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:52,127 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2018-10-27 00:53:52,129 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:52,178 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-10-27 00:53:52,183 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:52,185 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-10-27 00:53:52,190 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:52,229 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-10-27 00:53:52,230 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:52,254 INFO L267 ElimStorePlain]: Start of recursive call 57: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:52,401 INFO L267 ElimStorePlain]: Start of recursive call 46: 8 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-10-27 00:53:52,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 52 [2018-10-27 00:53:52,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 66 [2018-10-27 00:53:52,607 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 86 [2018-10-27 00:53:52,610 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,611 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-10-27 00:53:52,612 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:52,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2018-10-27 00:53:52,701 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:52,775 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2018-10-27 00:53:52,775 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:52,862 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,864 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2018-10-27 00:53:52,864 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:52,866 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2018-10-27 00:53:52,868 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:52,925 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2018-10-27 00:53:52,931 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:52,973 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:52,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 26 [2018-10-27 00:53:52,974 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-10-27 00:53:53,010 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,038 INFO L267 ElimStorePlain]: Start of recursive call 64: 7 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:53,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 39 [2018-10-27 00:53:53,071 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 48 [2018-10-27 00:53:53,239 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2018-10-27 00:53:53,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-10-27 00:53:53,241 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2018-10-27 00:53:53,269 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,271 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2018-10-27 00:53:53,271 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,287 INFO L267 ElimStorePlain]: Start of recursive call 74: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:53,320 INFO L267 ElimStorePlain]: Start of recursive call 63: 3 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-10-27 00:53:53,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 71 [2018-10-27 00:53:53,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 63 [2018-10-27 00:53:53,426 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:53,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2018-10-27 00:53:53,428 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,474 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:53,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2018-10-27 00:53:53,476 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,478 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:53,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2018-10-27 00:53:53,479 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,521 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-10-27 00:53:53,521 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2018-10-27 00:53:53,524 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,567 INFO L267 ElimStorePlain]: Start of recursive call 79: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:53,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 56 treesize of output 46 [2018-10-27 00:53:53,818 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:53,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 63 [2018-10-27 00:53:54,041 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:54,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2018-10-27 00:53:54,043 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2018-10-27 00:53:54,093 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-10-27 00:53:54,096 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,140 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:54,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2018-10-27 00:53:54,142 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,144 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:54,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2018-10-27 00:53:54,146 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,181 INFO L267 ElimStorePlain]: Start of recursive call 86: 3 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:53:54,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 49 [2018-10-27 00:53:54,290 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 44 [2018-10-27 00:53:54,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2018-10-27 00:53:54,396 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:54,398 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,414 INFO L267 ElimStorePlain]: Start of recursive call 93: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:54,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 60 [2018-10-27 00:53:54,818 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2018-10-27 00:53:54,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 29 [2018-10-27 00:53:54,820 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 34 [2018-10-27 00:53:54,823 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-10-27 00:53:54,849 INFO L267 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:54,866 INFO L267 ElimStorePlain]: Start of recursive call 96: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:54,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 60 [2018-10-27 00:53:55,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 21 [2018-10-27 00:53:55,036 INFO L267 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-10-27 00:53:55,038 INFO L267 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,074 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:55,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-10-27 00:53:55,075 INFO L267 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,108 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:55,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2018-10-27 00:53:55,110 INFO L267 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,111 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:55,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2018-10-27 00:53:55,113 INFO L267 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,140 INFO L267 ElimStorePlain]: Start of recursive call 100: 3 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:53:55,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2018-10-27 00:53:55,206 INFO L267 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2018-10-27 00:53:55,208 INFO L267 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,260 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2018-10-27 00:53:55,260 INFO L267 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-10-27 00:53:55,262 INFO L267 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2018-10-27 00:53:55,471 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:55,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2018-10-27 00:53:55,472 INFO L267 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,489 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:55,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2018-10-27 00:53:55,491 INFO L267 ElimStorePlain]: Start of recursive call 112: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,494 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:55,495 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2018-10-27 00:53:55,495 INFO L267 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-10-27 00:53:55,543 INFO L267 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,544 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-10-27 00:53:55,545 INFO L267 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,564 INFO L267 ElimStorePlain]: Start of recursive call 110: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:55,631 INFO L267 ElimStorePlain]: Start of recursive call 78: 13 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:53:55,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 58 [2018-10-27 00:53:55,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2018-10-27 00:53:55,648 INFO L267 ElimStorePlain]: Start of recursive call 117: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-10-27 00:53:55,710 INFO L267 ElimStorePlain]: Start of recursive call 118: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,778 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 54 [2018-10-27 00:53:55,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2018-10-27 00:53:55,830 INFO L267 ElimStorePlain]: Start of recursive call 120: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2018-10-27 00:53:55,833 INFO L267 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-10-27 00:53:55,835 INFO L267 ElimStorePlain]: Start of recursive call 122: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 38 [2018-10-27 00:53:55,881 INFO L267 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:55,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 36 [2018-10-27 00:53:55,887 INFO L267 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:55,916 INFO L267 ElimStorePlain]: Start of recursive call 119: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:55,996 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-10-27 00:53:55,997 INFO L267 ElimStorePlain]: Start of recursive call 125: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:55,998 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2018-10-27 00:53:55,999 INFO L267 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2018-10-27 00:53:56,001 INFO L267 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,068 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 40 [2018-10-27 00:53:56,089 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 18 [2018-10-27 00:53:56,091 INFO L267 ElimStorePlain]: Start of recursive call 129: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,094 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,099 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 30 [2018-10-27 00:53:56,100 INFO L267 ElimStorePlain]: Start of recursive call 130: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:56,102 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2018-10-27 00:53:56,107 INFO L267 ElimStorePlain]: Start of recursive call 131: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:56,132 INFO L267 ElimStorePlain]: Start of recursive call 128: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:56,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 54 [2018-10-27 00:53:56,277 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 19 [2018-10-27 00:53:56,277 INFO L267 ElimStorePlain]: Start of recursive call 133: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 19 [2018-10-27 00:53:56,279 INFO L267 ElimStorePlain]: Start of recursive call 134: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,281 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 22 [2018-10-27 00:53:56,283 INFO L267 ElimStorePlain]: Start of recursive call 135: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,315 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,320 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2018-10-27 00:53:56,320 INFO L267 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:56,322 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,327 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 28 [2018-10-27 00:53:56,327 INFO L267 ElimStorePlain]: Start of recursive call 137: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:56,355 INFO L267 ElimStorePlain]: Start of recursive call 132: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:56,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 40 [2018-10-27 00:53:56,457 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-10-27 00:53:56,457 INFO L267 ElimStorePlain]: Start of recursive call 139: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:56,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:56,459 INFO L267 ElimStorePlain]: Start of recursive call 140: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,472 INFO L267 ElimStorePlain]: Start of recursive call 138: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:53:56,577 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 54 [2018-10-27 00:53:56,622 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2018-10-27 00:53:56,627 INFO L267 ElimStorePlain]: Start of recursive call 142: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:56,639 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 28 [2018-10-27 00:53:56,648 INFO L267 ElimStorePlain]: Start of recursive call 143: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:56,689 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 22 [2018-10-27 00:53:56,691 INFO L267 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,724 INFO L267 ElimStorePlain]: Start of recursive call 141: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:56,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2018-10-27 00:53:56,851 INFO L267 ElimStorePlain]: Start of recursive call 145: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 51 [2018-10-27 00:53:56,950 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2018-10-27 00:53:56,950 INFO L267 ElimStorePlain]: Start of recursive call 147: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16 [2018-10-27 00:53:56,952 INFO L267 ElimStorePlain]: Start of recursive call 148: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,954 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,955 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 19 [2018-10-27 00:53:56,955 INFO L267 ElimStorePlain]: Start of recursive call 149: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:56,989 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:56,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2018-10-27 00:53:56,994 INFO L267 ElimStorePlain]: Start of recursive call 150: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:56,996 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:57,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 25 [2018-10-27 00:53:57,000 INFO L267 ElimStorePlain]: Start of recursive call 151: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:57,024 INFO L267 ElimStorePlain]: Start of recursive call 146: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:57,124 INFO L267 ElimStorePlain]: Start of recursive call 116: 13 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-10-27 00:53:57,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 43 [2018-10-27 00:53:57,133 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:57,133 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 38 [2018-10-27 00:53:57,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2018-10-27 00:53:57,158 INFO L267 ElimStorePlain]: Start of recursive call 154: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:57,160 INFO L267 ElimStorePlain]: Start of recursive call 155: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,196 INFO L267 ElimStorePlain]: Start of recursive call 153: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:57,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 27 treesize of output 25 [2018-10-27 00:53:57,223 INFO L267 ElimStorePlain]: Start of recursive call 156: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-10-27 00:53:57,252 INFO L267 ElimStorePlain]: Start of recursive call 157: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,373 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:57,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 56 [2018-10-27 00:53:57,436 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:57,437 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:57,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-10-27 00:53:57,438 INFO L267 ElimStorePlain]: Start of recursive call 159: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,485 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:57,486 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:57,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-10-27 00:53:57,487 INFO L267 ElimStorePlain]: Start of recursive call 160: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2018-10-27 00:53:57,535 INFO L267 ElimStorePlain]: Start of recursive call 161: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,548 INFO L267 ElimStorePlain]: Start of recursive call 158: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:57,562 INFO L267 ElimStorePlain]: Start of recursive call 152: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:57,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 53 [2018-10-27 00:53:57,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 43 treesize of output 33 [2018-10-27 00:53:57,576 INFO L267 ElimStorePlain]: Start of recursive call 163: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-10-27 00:53:57,608 INFO L267 ElimStorePlain]: Start of recursive call 164: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2018-10-27 00:53:57,639 INFO L267 ElimStorePlain]: Start of recursive call 165: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-10-27 00:53:57,686 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2018-10-27 00:53:57,686 INFO L267 ElimStorePlain]: Start of recursive call 167: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:57,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:57,688 INFO L267 ElimStorePlain]: Start of recursive call 168: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,700 INFO L267 ElimStorePlain]: Start of recursive call 166: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:53:57,743 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 29 [2018-10-27 00:53:57,744 INFO L267 ElimStorePlain]: Start of recursive call 169: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 36 [2018-10-27 00:53:57,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2018-10-27 00:53:57,821 INFO L267 ElimStorePlain]: Start of recursive call 171: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:57,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2018-10-27 00:53:57,848 INFO L267 ElimStorePlain]: Start of recursive call 172: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:57,852 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2018-10-27 00:53:57,852 INFO L267 ElimStorePlain]: Start of recursive call 173: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,888 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:57,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2018-10-27 00:53:57,890 INFO L267 ElimStorePlain]: Start of recursive call 174: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:57,893 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:57,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2018-10-27 00:53:57,898 INFO L267 ElimStorePlain]: Start of recursive call 175: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:57,925 INFO L267 ElimStorePlain]: Start of recursive call 170: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:57,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 55 [2018-10-27 00:53:58,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-10-27 00:53:58,083 INFO L267 ElimStorePlain]: Start of recursive call 177: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-10-27 00:53:58,087 INFO L267 ElimStorePlain]: Start of recursive call 178: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,134 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:58,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2018-10-27 00:53:58,136 INFO L267 ElimStorePlain]: Start of recursive call 179: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,138 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:58,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2018-10-27 00:53:58,140 INFO L267 ElimStorePlain]: Start of recursive call 180: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,176 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:58,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-10-27 00:53:58,178 INFO L267 ElimStorePlain]: Start of recursive call 181: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,181 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:58,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-10-27 00:53:58,186 INFO L267 ElimStorePlain]: Start of recursive call 182: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:58,212 INFO L267 ElimStorePlain]: Start of recursive call 176: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:58,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 23 [2018-10-27 00:53:58,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2018-10-27 00:53:58,285 INFO L267 ElimStorePlain]: Start of recursive call 184: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:58,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:58,287 INFO L267 ElimStorePlain]: Start of recursive call 185: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,297 INFO L267 ElimStorePlain]: Start of recursive call 183: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:53:58,331 INFO L267 ElimStorePlain]: Start of recursive call 162: 8 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-10-27 00:53:58,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 51 [2018-10-27 00:53:58,364 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 44 [2018-10-27 00:53:58,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:58,378 INFO L267 ElimStorePlain]: Start of recursive call 188: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2018-10-27 00:53:58,381 INFO L267 ElimStorePlain]: Start of recursive call 189: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,394 INFO L267 ElimStorePlain]: Start of recursive call 187: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:58,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 46 [2018-10-27 00:53:58,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2018-10-27 00:53:58,483 INFO L267 ElimStorePlain]: Start of recursive call 191: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 34 [2018-10-27 00:53:58,486 INFO L267 ElimStorePlain]: Start of recursive call 192: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 34 [2018-10-27 00:53:58,503 INFO L267 ElimStorePlain]: Start of recursive call 193: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,548 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:58,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 41 [2018-10-27 00:53:58,553 INFO L267 ElimStorePlain]: Start of recursive call 194: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:58,555 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:58,557 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2018-10-27 00:53:58,557 INFO L267 ElimStorePlain]: Start of recursive call 195: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,595 INFO L267 ElimStorePlain]: Start of recursive call 190: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:53:58,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2018-10-27 00:53:58,661 INFO L267 ElimStorePlain]: Start of recursive call 196: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2018-10-27 00:53:58,663 INFO L267 ElimStorePlain]: Start of recursive call 197: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,722 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 41 [2018-10-27 00:53:58,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2018-10-27 00:53:58,735 INFO L267 ElimStorePlain]: Start of recursive call 199: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:58,738 INFO L267 ElimStorePlain]: Start of recursive call 200: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,751 INFO L267 ElimStorePlain]: Start of recursive call 198: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:58,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-10-27 00:53:58,818 INFO L267 ElimStorePlain]: Start of recursive call 201: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2018-10-27 00:53:58,820 INFO L267 ElimStorePlain]: Start of recursive call 202: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2018-10-27 00:53:58,883 INFO L267 ElimStorePlain]: Start of recursive call 203: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-10-27 00:53:58,885 INFO L267 ElimStorePlain]: Start of recursive call 204: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2018-10-27 00:53:58,887 INFO L267 ElimStorePlain]: Start of recursive call 205: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,937 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 20 [2018-10-27 00:53:58,938 INFO L267 ElimStorePlain]: Start of recursive call 206: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-10-27 00:53:58,940 INFO L267 ElimStorePlain]: Start of recursive call 207: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:58,996 INFO L267 ElimStorePlain]: Start of recursive call 186: 8 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:53:59,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 47 [2018-10-27 00:53:59,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 42 [2018-10-27 00:53:59,039 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:59,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 20 [2018-10-27 00:53:59,040 INFO L267 ElimStorePlain]: Start of recursive call 210: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,059 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:59,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2018-10-27 00:53:59,061 INFO L267 ElimStorePlain]: Start of recursive call 211: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,063 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:53:59,064 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2018-10-27 00:53:59,065 INFO L267 ElimStorePlain]: Start of recursive call 212: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-10-27 00:53:59,103 INFO L267 ElimStorePlain]: Start of recursive call 213: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2018-10-27 00:53:59,105 INFO L267 ElimStorePlain]: Start of recursive call 214: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,121 INFO L267 ElimStorePlain]: Start of recursive call 209: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:53:59,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2018-10-27 00:53:59,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:59,156 INFO L267 ElimStorePlain]: Start of recursive call 216: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2018-10-27 00:53:59,158 INFO L267 ElimStorePlain]: Start of recursive call 217: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,170 INFO L267 ElimStorePlain]: Start of recursive call 215: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:59,195 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-10-27 00:53:59,196 INFO L267 ElimStorePlain]: Start of recursive call 218: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,210 INFO L267 ElimStorePlain]: Start of recursive call 208: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:59,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-10-27 00:53:59,214 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-10-27 00:53:59,215 INFO L267 ElimStorePlain]: Start of recursive call 220: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2018-10-27 00:53:59,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2018-10-27 00:53:59,232 INFO L267 ElimStorePlain]: Start of recursive call 222: End of recursive call: and 2 xjuncts. [2018-10-27 00:53:59,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-27 00:53:59,255 INFO L267 ElimStorePlain]: Start of recursive call 223: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,262 INFO L267 ElimStorePlain]: Start of recursive call 221: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:53:59,276 INFO L267 ElimStorePlain]: Start of recursive call 219: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:53:59,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2018-10-27 00:53:59,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-10-27 00:53:59,282 INFO L267 ElimStorePlain]: Start of recursive call 225: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-10-27 00:53:59,289 INFO L267 ElimStorePlain]: Start of recursive call 226: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,293 INFO L267 ElimStorePlain]: Start of recursive call 224: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,394 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 9 xjuncts. [2018-10-27 00:53:59,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 93 [2018-10-27 00:53:59,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-10-27 00:53:59,487 INFO L267 ElimStorePlain]: Start of recursive call 228: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 58 [2018-10-27 00:53:59,569 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2018-10-27 00:53:59,570 INFO L267 ElimStorePlain]: Start of recursive call 230: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,572 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 41 [2018-10-27 00:53:59,572 INFO L267 ElimStorePlain]: Start of recursive call 231: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,574 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2018-10-27 00:53:59,574 INFO L267 ElimStorePlain]: Start of recursive call 232: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2018-10-27 00:53:59,576 INFO L267 ElimStorePlain]: Start of recursive call 233: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 34 [2018-10-27 00:53:59,657 INFO L267 ElimStorePlain]: Start of recursive call 234: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-10-27 00:53:59,660 INFO L267 ElimStorePlain]: Start of recursive call 235: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 33 [2018-10-27 00:53:59,663 INFO L267 ElimStorePlain]: Start of recursive call 236: End of recursive call: and 1 xjuncts. [2018-10-27 00:53:59,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 50 [2018-10-27 00:54:01,073 WARN L179 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2018-10-27 00:54:01,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2018-10-27 00:54:01,076 INFO L267 ElimStorePlain]: Start of recursive call 238: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,135 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2018-10-27 00:54:01,135 INFO L267 ElimStorePlain]: Start of recursive call 239: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-10-27 00:54:01,191 INFO L267 ElimStorePlain]: Start of recursive call 240: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2018-10-27 00:54:01,249 INFO L267 ElimStorePlain]: Start of recursive call 241: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:01,303 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:01,304 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:01,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2018-10-27 00:54:01,308 INFO L267 ElimStorePlain]: Start of recursive call 242: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:01,392 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2018-10-27 00:54:01,392 INFO L267 ElimStorePlain]: Start of recursive call 243: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 13 [2018-10-27 00:54:01,426 INFO L267 ElimStorePlain]: Start of recursive call 244: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-10-27 00:54:01,428 INFO L267 ElimStorePlain]: Start of recursive call 245: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 30 [2018-10-27 00:54:01,456 INFO L267 ElimStorePlain]: Start of recursive call 246: End of recursive call: and 3 xjuncts. [2018-10-27 00:54:01,491 INFO L267 ElimStorePlain]: Start of recursive call 237: 10 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:54:01,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2018-10-27 00:54:01,522 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2018-10-27 00:54:01,522 INFO L267 ElimStorePlain]: Start of recursive call 248: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2018-10-27 00:54:01,538 INFO L267 ElimStorePlain]: Start of recursive call 249: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:01,547 INFO L267 ElimStorePlain]: Start of recursive call 247: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,557 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 47 [2018-10-27 00:54:01,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2018-10-27 00:54:01,560 INFO L267 ElimStorePlain]: Start of recursive call 251: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 30 [2018-10-27 00:54:01,594 INFO L267 ElimStorePlain]: Start of recursive call 252: End of recursive call: and 3 xjuncts. [2018-10-27 00:54:01,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-10-27 00:54:01,625 INFO L267 ElimStorePlain]: Start of recursive call 253: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-10-27 00:54:01,652 INFO L267 ElimStorePlain]: Start of recursive call 254: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-10-27 00:54:01,678 INFO L267 ElimStorePlain]: Start of recursive call 255: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 17 [2018-10-27 00:54:01,702 INFO L267 ElimStorePlain]: Start of recursive call 256: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:01,713 INFO L267 ElimStorePlain]: Start of recursive call 250: 6 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:01,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2018-10-27 00:54:01,766 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2018-10-27 00:54:01,766 INFO L267 ElimStorePlain]: Start of recursive call 258: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-10-27 00:54:01,821 INFO L267 ElimStorePlain]: Start of recursive call 259: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2018-10-27 00:54:01,876 INFO L267 ElimStorePlain]: Start of recursive call 260: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-10-27 00:54:01,928 INFO L267 ElimStorePlain]: Start of recursive call 261: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:01,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-10-27 00:54:01,978 INFO L267 ElimStorePlain]: Start of recursive call 262: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:02,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2018-10-27 00:54:02,036 INFO L267 ElimStorePlain]: Start of recursive call 263: End of recursive call: and 3 xjuncts. [2018-10-27 00:54:02,085 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2018-10-27 00:54:02,086 INFO L267 ElimStorePlain]: Start of recursive call 264: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:02,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2018-10-27 00:54:02,131 INFO L267 ElimStorePlain]: Start of recursive call 265: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:02,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 17 [2018-10-27 00:54:02,164 INFO L267 ElimStorePlain]: Start of recursive call 266: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:02,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 30 [2018-10-27 00:54:02,210 INFO L267 ElimStorePlain]: Start of recursive call 267: End of recursive call: and 3 xjuncts. [2018-10-27 00:54:02,234 INFO L267 ElimStorePlain]: Start of recursive call 257: 13 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 00:54:02,267 INFO L267 ElimStorePlain]: Start of recursive call 229: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:54:02,284 INFO L267 ElimStorePlain]: Start of recursive call 227: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-10-27 00:54:02,361 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 3 dim-2 vars, End of recursive call: 8 dim-0 vars, and 11 xjuncts. [2018-10-27 00:54:02,361 INFO L202 ElimStorePlain]: Needed 267 recursive calls to eliminate 11 variables, input treesize:329, output treesize:115 [2018-10-27 00:54:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:54:02,470 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 00:54:02,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 25 [2018-10-27 00:54:02,470 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 00:54:02,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-27 00:54:02,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-27 00:54:02,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2018-10-27 00:54:02,471 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 19 states. [2018-10-27 00:54:03,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:54:03,056 INFO L93 Difference]: Finished difference Result 115 states and 124 transitions. [2018-10-27 00:54:03,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-27 00:54:03,057 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 39 [2018-10-27 00:54:03,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:54:03,058 INFO L225 Difference]: With dead ends: 115 [2018-10-27 00:54:03,058 INFO L226 Difference]: Without dead ends: 101 [2018-10-27 00:54:03,059 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=212, Invalid=1048, Unknown=0, NotChecked=0, Total=1260 [2018-10-27 00:54:03,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-10-27 00:54:03,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 70. [2018-10-27 00:54:03,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-10-27 00:54:03,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2018-10-27 00:54:03,066 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 39 [2018-10-27 00:54:03,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:54:03,066 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2018-10-27 00:54:03,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-27 00:54:03,066 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2018-10-27 00:54:03,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-27 00:54:03,067 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:54:03,067 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:54:03,068 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:54:03,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:54:03,068 INFO L82 PathProgramCache]: Analyzing trace with hash -738958501, now seen corresponding path program 1 times [2018-10-27 00:54:03,068 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:54:03,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:54:03,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:54:03,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:54:03,069 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:54:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:54:03,467 WARN L179 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-10-27 00:54:03,816 WARN L179 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2018-10-27 00:54:03,916 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:54:03,917 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:54:03,917 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:54:03,917 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-10-27 00:54:03,917 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [11], [14], [16], [21], [25], [32], [36], [44], [51], [55], [63], [70], [74], [83], [87], [94], [98], [106], [113], [117], [125], [131], [134], [138], [141], [142], [175], [177], [201], [202], [203] [2018-10-27 00:54:03,923 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:54:03,923 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:54:05,016 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 00:54:05,016 INFO L272 AbstractInterpreter]: Visited 35 different actions 76 times. Merged at 20 different actions 39 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 78 variables. [2018-10-27 00:54:05,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:54:05,023 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 00:54:05,024 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:54:05,024 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 00:54:05,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:54:05,032 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 00:54:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:54:05,069 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:54:05,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-27 00:54:05,074 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:05,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:05,153 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-10-27 00:54:05,212 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:05,224 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:05,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-10-27 00:54:05,225 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:05,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 51 [2018-10-27 00:54:05,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:54:05,270 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:05,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2018-10-27 00:54:05,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:54:05,287 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:05,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2018-10-27 00:54:05,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-10-27 00:54:05,313 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:05,329 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:05,346 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:05,363 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:05,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 51 [2018-10-27 00:54:05,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:54:05,411 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:05,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2018-10-27 00:54:05,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:54:05,429 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:05,439 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:05,440 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:05,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2018-10-27 00:54:05,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-10-27 00:54:05,453 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:05,465 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:05,479 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:05,492 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:05,574 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-10-27 00:54:05,574 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 7 variables, input treesize:200, output treesize:217 [2018-10-27 00:54:05,619 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:05,621 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:05,622 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:05,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-10-27 00:54:05,623 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:05,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 381 treesize of output 280 [2018-10-27 00:54:05,910 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2018-10-27 00:54:05,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-27 00:54:05,914 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:05,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 255 [2018-10-27 00:54:05,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-10-27 00:54:05,943 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:05,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 258 [2018-10-27 00:54:06,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 53 [2018-10-27 00:54:06,001 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:06,031 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:06,072 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:06,115 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:06,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 142 [2018-10-27 00:54:06,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-27 00:54:06,204 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,220 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:06,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 111 [2018-10-27 00:54:06,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-10-27 00:54:06,228 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 108 [2018-10-27 00:54:06,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2018-10-27 00:54:06,251 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,262 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,270 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,281 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 254 treesize of output 150 [2018-10-27 00:54:06,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-27 00:54:06,322 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,339 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:06,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 111 [2018-10-27 00:54:06,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-10-27 00:54:06,347 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 108 [2018-10-27 00:54:06,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 23 [2018-10-27 00:54:06,375 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:06,392 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:06,415 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:06,444 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:06,486 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:06,487 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 7 variables, input treesize:402, output treesize:199 [2018-10-27 00:54:06,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 72 [2018-10-27 00:54:06,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-10-27 00:54:06,580 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 44 [2018-10-27 00:54:06,589 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,594 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-10-27 00:54:06,601 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:97, output treesize:59 [2018-10-27 00:54:06,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 37 [2018-10-27 00:54:06,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 26 treesize of output 15 [2018-10-27 00:54:06,764 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-10-27 00:54:06,769 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,772 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:06,775 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:60, output treesize:4 [2018-10-27 00:54:06,791 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:54:06,792 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 00:54:07,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 4661 treesize of output 2846 [2018-10-27 00:54:07,804 WARN L179 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2018-10-27 00:54:07,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-10-27 00:54:07,815 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:08,080 INFO L303 Elim1Store]: Index analysis took 143 ms [2018-10-27 00:54:08,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2270 treesize of output 1804 [2018-10-27 00:54:08,524 WARN L179 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2018-10-27 00:54:08,526 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-10-27 00:54:08,526 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:08,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 3223 treesize of output 3222 [2018-10-27 00:54:08,531 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:08,533 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 1420 treesize of output 1419 [2018-10-27 00:54:08,534 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:08,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 1316 treesize of output 1221 [2018-10-27 00:54:08,734 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:08,828 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:08,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1412 treesize of output 901 [2018-10-27 00:54:09,150 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 144 [2018-10-27 00:54:09,157 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:09,173 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 815 treesize of output 788 [2018-10-27 00:54:09,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 778 treesize of output 890 [2018-10-27 00:54:09,261 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 16 xjuncts. [2018-10-27 00:54:09,487 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:09,488 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 771 treesize of output 796 [2018-10-27 00:54:09,489 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:09,664 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:09,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 773 treesize of output 853 [2018-10-27 00:54:09,685 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 8 xjuncts. [2018-10-27 00:54:09,883 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:09,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 773 treesize of output 853 [2018-10-27 00:54:09,905 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 8 xjuncts. [2018-10-27 00:54:10,109 INFO L267 ElimStorePlain]: Start of recursive call 10: 4 dim-1 vars, End of recursive call: and 9 xjuncts. [2018-10-27 00:54:10,413 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:10,452 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 850 treesize of output 785 [2018-10-27 00:54:10,898 WARN L179 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 166 [2018-10-27 00:54:10,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 753 treesize of output 752 [2018-10-27 00:54:10,901 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:10,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 829 treesize of output 828 [2018-10-27 00:54:10,905 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:10,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 754 treesize of output 753 [2018-10-27 00:54:10,916 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:10,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 1249 treesize of output 1248 [2018-10-27 00:54:10,919 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:11,386 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:11,391 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:11,412 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 806 treesize of output 858 [2018-10-27 00:54:11,419 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-10-27 00:54:11,420 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:11,527 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:11,528 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:11,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 835 treesize of output 905 [2018-10-27 00:54:11,542 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:11,676 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:11,678 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:11,689 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 839 treesize of output 916 [2018-10-27 00:54:11,690 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:11,855 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:11,857 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:11,862 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:11,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 838 treesize of output 966 [2018-10-27 00:54:11,890 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 8 xjuncts. [2018-10-27 00:54:12,123 INFO L267 ElimStorePlain]: Start of recursive call 20: 4 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-10-27 00:54:12,126 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:12,130 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:12,150 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 1210 treesize of output 1278 [2018-10-27 00:54:12,154 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:12,155 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:12,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 1262 treesize of output 1332 [2018-10-27 00:54:12,170 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:12,347 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:12,352 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:12,354 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:12,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 1258 treesize of output 1386 [2018-10-27 00:54:12,381 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 8 xjuncts. [2018-10-27 00:54:12,831 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:12,833 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:12,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 1259 treesize of output 1336 [2018-10-27 00:54:12,845 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:13,062 INFO L267 ElimStorePlain]: Start of recursive call 25: 4 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-10-27 00:54:13,065 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:13,070 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:13,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 731 treesize of output 783 [2018-10-27 00:54:13,098 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:13,103 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:13,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 773 treesize of output 898 [2018-10-27 00:54:13,133 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 8 xjuncts. [2018-10-27 00:54:13,401 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:13,460 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:13,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 764 treesize of output 841 [2018-10-27 00:54:13,530 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:13,813 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:13,814 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:13,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 760 treesize of output 830 [2018-10-27 00:54:13,829 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:14,290 INFO L267 ElimStorePlain]: Start of recursive call 29: 4 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-10-27 00:54:15,776 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:15,778 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:15,779 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:15,781 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:15,801 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 753 treesize of output 797 [2018-10-27 00:54:15,842 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:15,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 790 treesize of output 782 [2018-10-27 00:54:15,899 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:15,900 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:15,901 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:15,901 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:15,902 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:15,903 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 00:54:16,104 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 00:54:16,105 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_255 term size 60 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-27 00:54:16,108 INFO L168 Benchmark]: Toolchain (without parser) took 39789.61 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.1 GB). Free memory was 958.1 MB in the beginning and 1.8 GB in the end (delta: -822.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-10-27 00:54:16,108 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:54:16,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.63 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 936.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:54:16,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 936.6 MB in the beginning and 1.2 GB in the end (delta: -224.0 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:54:16,109 INFO L168 Benchmark]: Boogie Preprocessor took 45.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:54:16,109 INFO L168 Benchmark]: RCFGBuilder took 829.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:54:16,109 INFO L168 Benchmark]: TraceAbstraction took 38408.26 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 923.3 MB). Free memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: -663.1 MB). Peak memory consumption was 1.0 GB. Max. memory is 11.5 GB. [2018-10-27 00:54:16,111 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 395.63 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 936.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 105.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 936.6 MB in the beginning and 1.2 GB in the end (delta: -224.0 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 829.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 38408.26 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 923.3 MB). Free memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: -663.1 MB). Peak memory consumption was 1.0 GB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_255 term size 60 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_255 term size 60: 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 0.1.23-1dbac8b [2018-10-27 00:54:17,995 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:54:17,996 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:54:18,006 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:54:18,006 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:54:18,007 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:54:18,008 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:54:18,010 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:54:18,011 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:54:18,012 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:54:18,013 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:54:18,013 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:54:18,014 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:54:18,015 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:54:18,016 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:54:18,017 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:54:18,017 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:54:18,019 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:54:18,021 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:54:18,022 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:54:18,023 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:54:18,024 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:54:18,026 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:54:18,026 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:54:18,026 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:54:18,028 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:54:18,028 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:54:18,029 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:54:18,030 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:54:18,031 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:54:18,031 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:54:18,032 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:54:18,032 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:54:18,032 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:54:18,033 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:54:18,034 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:54:18,034 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-27 00:54:18,046 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:54:18,046 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:54:18,047 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:54:18,047 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:54:18,047 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:54:18,047 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:54:18,048 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:54:18,048 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:54:18,048 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:54:18,048 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:54:18,049 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:54:18,049 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:54:18,049 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:54:18,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:54:18,049 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:54:18,049 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 00:54:18,049 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 00:54:18,049 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:54:18,050 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:54:18,050 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:54:18,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:54:18,050 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:54:18,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:54:18,050 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:54:18,050 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:54:18,050 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:54:18,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:54:18,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:54:18,051 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-27 00:54:18,053 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:54:18,053 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 00:54:18,053 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 00:54:18,054 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_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/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 -> b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 [2018-10-27 00:54:18,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:54:18,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:54:18,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:54:18,110 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:54:18,110 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:54:18,111 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-10-27 00:54:18,158 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/data/74c772282/8e1f102d9531424a815c321cbf6c22d8/FLAG555c332d2 [2018-10-27 00:54:18,590 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:54:18,591 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-10-27 00:54:18,600 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/data/74c772282/8e1f102d9531424a815c321cbf6c22d8/FLAG555c332d2 [2018-10-27 00:54:18,611 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/data/74c772282/8e1f102d9531424a815c321cbf6c22d8 [2018-10-27 00:54:18,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:54:18,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:54:18,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:54:18,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:54:18,620 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:54:18,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:54:18" (1/1) ... [2018-10-27 00:54:18,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1439afcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:18, skipping insertion in model container [2018-10-27 00:54:18,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:54:18" (1/1) ... [2018-10-27 00:54:18,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:54:18,668 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:54:18,929 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:54:18,942 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:54:18,992 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:54:19,031 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:54:19,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19 WrapperNode [2018-10-27 00:54:19,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:54:19,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:54:19,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:54:19,032 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:54:19,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (1/1) ... [2018-10-27 00:54:19,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (1/1) ... [2018-10-27 00:54:19,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:54:19,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:54:19,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:54:19,083 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:54:19,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (1/1) ... [2018-10-27 00:54:19,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (1/1) ... [2018-10-27 00:54:19,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (1/1) ... [2018-10-27 00:54:19,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (1/1) ... [2018-10-27 00:54:19,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (1/1) ... [2018-10-27 00:54:19,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (1/1) ... [2018-10-27 00:54:19,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (1/1) ... [2018-10-27 00:54:19,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:54:19,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:54:19,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:54:19,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:54:19,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/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 [2018-10-27 00:54:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:54:19,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:54:19,241 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:54:19,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:54:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:54:19,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:54:20,113 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:54:20,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:54:20 BoogieIcfgContainer [2018-10-27 00:54:20,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:54:20,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:54:20,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:54:20,117 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:54:20,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:54:18" (1/3) ... [2018-10-27 00:54:20,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f59641a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:54:20, skipping insertion in model container [2018-10-27 00:54:20,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:54:19" (2/3) ... [2018-10-27 00:54:20,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f59641a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:54:20, skipping insertion in model container [2018-10-27 00:54:20,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:54:20" (3/3) ... [2018-10-27 00:54:20,122 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-10-27 00:54:20,130 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:54:20,136 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-10-27 00:54:20,148 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-10-27 00:54:20,174 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:54:20,174 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:54:20,174 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:54:20,174 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:54:20,175 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:54:20,175 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:54:20,175 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:54:20,175 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:54:20,176 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:54:20,190 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-10-27 00:54:20,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 00:54:20,195 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:54:20,196 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:54:20,199 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:54:20,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:54:20,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1227808601, now seen corresponding path program 1 times [2018-10-27 00:54:20,208 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 00:54:20,208 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-27 00:54:20,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:54:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:54:20,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:54:20,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:54:20,328 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:54:20,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:54:20,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:54:20,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:54:20,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:54:20,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:54:20,344 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2018-10-27 00:54:20,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:54:20,365 INFO L93 Difference]: Finished difference Result 108 states and 166 transitions. [2018-10-27 00:54:20,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:54:20,367 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-10-27 00:54:20,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:54:20,375 INFO L225 Difference]: With dead ends: 108 [2018-10-27 00:54:20,375 INFO L226 Difference]: Without dead ends: 49 [2018-10-27 00:54:20,378 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:54:20,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-27 00:54:20,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-10-27 00:54:20,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-10-27 00:54:20,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2018-10-27 00:54:20,411 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 11 [2018-10-27 00:54:20,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:54:20,411 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2018-10-27 00:54:20,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:54:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2018-10-27 00:54:20,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 00:54:20,412 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:54:20,412 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:54:20,413 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:54:20,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:54:20,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1605813605, now seen corresponding path program 1 times [2018-10-27 00:54:20,414 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 00:54:20,414 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-27 00:54:20,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:54:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:54:20,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:54:20,610 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-10-27 00:54:20,610 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:20,640 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:20,640 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:4 [2018-10-27 00:54:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:54:20,694 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:54:20,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:54:20,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:54:20,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:54:20,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:54:20,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:54:20,698 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 4 states. [2018-10-27 00:54:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:54:20,991 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-10-27 00:54:20,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:54:20,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-27 00:54:20,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:54:20,992 INFO L225 Difference]: With dead ends: 56 [2018-10-27 00:54:20,993 INFO L226 Difference]: Without dead ends: 54 [2018-10-27 00:54:20,994 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:54:20,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-10-27 00:54:20,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2018-10-27 00:54:20,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-10-27 00:54:20,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-10-27 00:54:21,000 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 12 [2018-10-27 00:54:21,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:54:21,000 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-10-27 00:54:21,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:54:21,000 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-10-27 00:54:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 00:54:21,001 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:54:21,001 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:54:21,001 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:54:21,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:54:21,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1605692457, now seen corresponding path program 1 times [2018-10-27 00:54:21,002 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 00:54:21,003 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-27 00:54:21,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:54:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:54:21,103 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:54:21,133 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-10-27 00:54:21,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-10-27 00:54:21,137 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,144 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,148 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,148 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-10-27 00:54:21,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-27 00:54:21,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-27 00:54:21,181 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,183 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,187 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,188 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-10-27 00:54:21,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:54:21,221 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:54:21,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:54:21,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:54:21,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:54:21,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:54:21,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:54:21,225 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 4 states. [2018-10-27 00:54:21,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:54:21,342 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2018-10-27 00:54:21,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:54:21,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-27 00:54:21,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:54:21,344 INFO L225 Difference]: With dead ends: 47 [2018-10-27 00:54:21,345 INFO L226 Difference]: Without dead ends: 45 [2018-10-27 00:54:21,345 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:54:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-10-27 00:54:21,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-10-27 00:54:21,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-10-27 00:54:21,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2018-10-27 00:54:21,350 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 12 [2018-10-27 00:54:21,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:54:21,351 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2018-10-27 00:54:21,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:54:21,351 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2018-10-27 00:54:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 00:54:21,351 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:54:21,351 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:54:21,352 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:54:21,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:54:21,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1451370690, now seen corresponding path program 1 times [2018-10-27 00:54:21,352 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 00:54:21,352 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-27 00:54:21,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:54:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:54:21,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:54:21,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-10-27 00:54:21,422 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-10-27 00:54:21,423 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,426 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,430 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,431 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-10-27 00:54:21,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-27 00:54:21,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-27 00:54:21,519 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,544 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,572 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:21,572 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-10-27 00:54:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:54:21,677 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:54:21,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:54:21,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:54:21,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:54:21,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:54:21,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:54:21,681 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 5 states. [2018-10-27 00:54:22,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:54:22,198 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2018-10-27 00:54:22,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 00:54:22,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-10-27 00:54:22,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:54:22,200 INFO L225 Difference]: With dead ends: 91 [2018-10-27 00:54:22,200 INFO L226 Difference]: Without dead ends: 89 [2018-10-27 00:54:22,200 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:54:22,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-10-27 00:54:22,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 63. [2018-10-27 00:54:22,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-10-27 00:54:22,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2018-10-27 00:54:22,209 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 15 [2018-10-27 00:54:22,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:54:22,209 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2018-10-27 00:54:22,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:54:22,209 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2018-10-27 00:54:22,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 00:54:22,210 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:54:22,210 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:54:22,210 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:54:22,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:54:22,211 INFO L82 PathProgramCache]: Analyzing trace with hash 2137156352, now seen corresponding path program 1 times [2018-10-27 00:54:22,211 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 00:54:22,211 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-27 00:54:22,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:54:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:54:22,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:54:22,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 31 [2018-10-27 00:54:22,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 23 [2018-10-27 00:54:22,372 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2018-10-27 00:54:22,422 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-10-27 00:54:22,446 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 00:54:22,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 00:54:22,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:54:22,508 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,536 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,754 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-10-27 00:54:22,755 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:33, output treesize:48 [2018-10-27 00:54:22,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-10-27 00:54:22,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-10-27 00:54:22,819 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,820 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,852 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-10-27 00:54:22,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-10-27 00:54:22,856 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,857 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,892 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,892 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:48, output treesize:18 [2018-10-27 00:54:22,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-27 00:54:22,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-27 00:54:22,915 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,917 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-27 00:54:22,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-27 00:54:22,940 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,942 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,947 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:22,948 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:32, output treesize:10 [2018-10-27 00:54:22,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:54:22,961 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:54:22,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:54:22,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:54:22,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:54:22,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:54:22,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:54:22,966 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand 5 states. [2018-10-27 00:54:23,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:54:23,262 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2018-10-27 00:54:23,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 00:54:23,263 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-10-27 00:54:23,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:54:23,263 INFO L225 Difference]: With dead ends: 63 [2018-10-27 00:54:23,263 INFO L226 Difference]: Without dead ends: 61 [2018-10-27 00:54:23,264 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:54:23,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-10-27 00:54:23,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-10-27 00:54:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-10-27 00:54:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2018-10-27 00:54:23,269 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 15 [2018-10-27 00:54:23,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:54:23,269 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2018-10-27 00:54:23,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:54:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2018-10-27 00:54:23,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-27 00:54:23,270 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:54:23,270 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:54:23,270 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:54:23,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:54:23,271 INFO L82 PathProgramCache]: Analyzing trace with hash -566349188, now seen corresponding path program 1 times [2018-10-27 00:54:23,272 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 00:54:23,272 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-27 00:54:23,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:54:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:54:23,395 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:54:23,409 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-10-27 00:54:23,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-10-27 00:54:23,415 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,419 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,425 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,425 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:14 [2018-10-27 00:54:23,459 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:23,462 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:23,466 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:23,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 9 [2018-10-27 00:54:23,468 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2018-10-27 00:54:23,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:54:23,520 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-27 00:54:23,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-27 00:54:23,531 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,533 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,535 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,542 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,542 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:51, output treesize:4 [2018-10-27 00:54:23,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:54:23,561 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:54:23,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:54:23,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:54:23,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:54:23,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:54:23,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:54:23,573 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand 4 states. [2018-10-27 00:54:23,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:54:23,733 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2018-10-27 00:54:23,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:54:23,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-10-27 00:54:23,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:54:23,735 INFO L225 Difference]: With dead ends: 61 [2018-10-27 00:54:23,735 INFO L226 Difference]: Without dead ends: 59 [2018-10-27 00:54:23,735 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:54:23,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-10-27 00:54:23,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-10-27 00:54:23,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-10-27 00:54:23,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2018-10-27 00:54:23,741 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 18 [2018-10-27 00:54:23,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:54:23,741 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2018-10-27 00:54:23,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:54:23,742 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2018-10-27 00:54:23,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 00:54:23,742 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:54:23,742 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:54:23,743 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:54:23,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:54:23,743 INFO L82 PathProgramCache]: Analyzing trace with hash -376649936, now seen corresponding path program 1 times [2018-10-27 00:54:23,744 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 00:54:23,745 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-27 00:54:23,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:54:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:54:23,816 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:54:23,861 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 00:54:23,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:54:23,876 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,903 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,918 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,918 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:11, output treesize:1 [2018-10-27 00:54:23,935 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-27 00:54:23,937 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-27 00:54:23,937 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,939 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:23,940 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-10-27 00:54:23,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:54:23,949 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:54:23,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:54:23,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:54:23,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:54:23,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:54:23,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:54:23,951 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 5 states. [2018-10-27 00:54:24,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:54:24,190 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2018-10-27 00:54:24,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 00:54:24,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-10-27 00:54:24,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:54:24,191 INFO L225 Difference]: With dead ends: 77 [2018-10-27 00:54:24,192 INFO L226 Difference]: Without dead ends: 63 [2018-10-27 00:54:24,192 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:54:24,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-27 00:54:24,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2018-10-27 00:54:24,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-10-27 00:54:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2018-10-27 00:54:24,199 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 21 [2018-10-27 00:54:24,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:54:24,200 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2018-10-27 00:54:24,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:54:24,200 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2018-10-27 00:54:24,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-27 00:54:24,201 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:54:24,201 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:54:24,201 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:54:24,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:54:24,201 INFO L82 PathProgramCache]: Analyzing trace with hash -789650824, now seen corresponding path program 1 times [2018-10-27 00:54:24,202 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 00:54:24,203 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4997e613-f9dc-4c09-b32d-5a6de7b0e9a5/bin-2019/utaipan/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-27 00:54:24,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:54:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:54:24,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:54:29,608 WARN L179 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2018-10-27 00:54:29,944 INFO L303 Elim1Store]: Index analysis took 335 ms [2018-10-27 00:54:29,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 45 [2018-10-27 00:54:29,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2018-10-27 00:54:30,036 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:30,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-10-27 00:54:30,037 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:30,307 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:54:31,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 38 [2018-10-27 00:54:32,009 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:32,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-10-27 00:54:32,010 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 00:54:32,160 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 00:54:32,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 25 [2018-10-27 00:54:32,386 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-27 00:54:32,387 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_7 term size 13 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-27 00:54:32,390 INFO L168 Benchmark]: Toolchain (without parser) took 13775.48 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.1 MB). Free memory was 947.9 MB in the beginning and 1.2 GB in the end (delta: -252.1 MB). Peak memory consumption was 279.3 MB. Max. memory is 11.5 GB. [2018-10-27 00:54:32,391 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:54:32,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.18 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 926.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:54:32,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.56 ms. Allocated memory is still 1.0 GB. Free memory was 926.4 MB in the beginning and 921.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:54:32,397 INFO L168 Benchmark]: Boogie Preprocessor took 111.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 921.0 MB in the beginning and 1.2 GB in the end (delta: -238.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:54:32,398 INFO L168 Benchmark]: RCFGBuilder took 919.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:54:32,398 INFO L168 Benchmark]: TraceAbstraction took 12274.85 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 49.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -84.9 MB). Peak memory consumption was 267.3 MB. Max. memory is 11.5 GB. [2018-10-27 00:54:32,405 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 415.18 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 926.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.56 ms. Allocated memory is still 1.0 GB. Free memory was 926.4 MB in the beginning and 921.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 111.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 921.0 MB in the beginning and 1.2 GB in the end (delta: -238.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 919.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12274.85 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 49.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -84.9 MB). Peak memory consumption was 267.3 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_7 term size 13 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_7 term size 13: 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...