./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e6399ca05df7547b7620299987a8a06e9e2c006b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e6399ca05df7547b7620299987a8a06e9e2c006b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_260 term size 47 --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:07:39,224 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:07:39,225 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:07:39,234 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:07:39,234 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:07:39,235 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:07:39,236 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:07:39,237 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:07:39,238 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:07:39,239 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:07:39,240 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:07:39,240 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:07:39,241 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:07:39,241 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:07:39,242 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:07:39,243 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:07:39,243 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:07:39,245 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:07:39,246 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:07:39,247 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:07:39,248 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:07:39,249 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:07:39,250 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:07:39,251 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:07:39,251 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:07:39,251 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:07:39,252 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:07:39,253 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:07:39,253 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:07:39,254 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:07:39,254 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:07:39,255 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:07:39,255 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:07:39,255 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:07:39,256 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:07:39,257 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:07:39,257 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 11:07:39,267 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:07:39,267 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:07:39,268 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:07:39,268 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 11:07:39,268 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 11:07:39,269 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 11:07:39,269 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 11:07:39,269 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 11:07:39,269 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 11:07:39,269 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 11:07:39,269 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 11:07:39,270 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:07:39,270 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:07:39,270 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:07:39,270 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:07:39,271 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:07:39,271 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:07:39,271 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:07:39,271 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:07:39,271 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:07:39,271 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:07:39,271 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:07:39,272 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:07:39,272 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:07:39,272 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:07:39,272 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:07:39,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:07:39,272 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:07:39,272 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:07:39,273 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:07:39,273 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 11:07:39,273 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:07:39,273 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:07:39,273 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 11:07:39,273 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_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6399ca05df7547b7620299987a8a06e9e2c006b [2018-11-10 11:07:39,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:07:39,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:07:39,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:07:39,309 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:07:39,310 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:07:39,310 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-10 11:07:39,354 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/data/5a58ca587/164dd5eeb5724d878994f9e7507d432c/FLAGb5ce3226e [2018-11-10 11:07:39,800 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:07:39,801 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-10 11:07:39,811 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/data/5a58ca587/164dd5eeb5724d878994f9e7507d432c/FLAGb5ce3226e [2018-11-10 11:07:39,820 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/data/5a58ca587/164dd5eeb5724d878994f9e7507d432c [2018-11-10 11:07:39,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:07:39,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:07:39,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:07:39,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:07:39,826 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:07:39,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:07:39" (1/1) ... [2018-11-10 11:07:39,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf0c46e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:39, skipping insertion in model container [2018-11-10 11:07:39,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:07:39" (1/1) ... [2018-11-10 11:07:39,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:07:39,863 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:07:40,049 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:07:40,057 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:07:40,096 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:07:40,129 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:07:40,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40 WrapperNode [2018-11-10 11:07:40,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:07:40,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:07:40,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:07:40,131 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:07:40,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (1/1) ... [2018-11-10 11:07:40,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (1/1) ... [2018-11-10 11:07:40,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:07:40,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:07:40,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:07:40,217 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:07:40,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (1/1) ... [2018-11-10 11:07:40,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (1/1) ... [2018-11-10 11:07:40,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (1/1) ... [2018-11-10 11:07:40,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (1/1) ... [2018-11-10 11:07:40,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (1/1) ... [2018-11-10 11:07:40,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (1/1) ... [2018-11-10 11:07:40,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (1/1) ... [2018-11-10 11:07:40,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:07:40,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:07:40,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:07:40,259 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:07:40,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:07:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_before [2018-11-10 11:07:40,300 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_before [2018-11-10 11:07:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_after [2018-11-10 11:07:40,300 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_after [2018-11-10 11:07:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-11-10 11:07:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-11-10 11:07:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-10 11:07:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-10 11:07:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:07:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:07:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure merge_pair [2018-11-10 11:07:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_pair [2018-11-10 11:07:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:07:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:07:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sort_core [2018-11-10 11:07:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2018-11-10 11:07:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:07:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:07:40,792 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:07:40,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:07:40 BoogieIcfgContainer [2018-11-10 11:07:40,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:07:40,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:07:40,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:07:40,795 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:07:40,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:07:39" (1/3) ... [2018-11-10 11:07:40,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b31c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:07:40, skipping insertion in model container [2018-11-10 11:07:40,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:07:40" (2/3) ... [2018-11-10 11:07:40,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b31c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:07:40, skipping insertion in model container [2018-11-10 11:07:40,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:07:40" (3/3) ... [2018-11-10 11:07:40,798 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-10 11:07:40,804 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:07:40,810 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:07:40,819 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:07:40,840 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:07:40,840 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:07:40,840 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:07:40,840 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:07:40,840 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:07:40,840 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:07:40,840 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:07:40,840 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:07:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2018-11-10 11:07:40,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 11:07:40,858 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:40,859 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:40,861 INFO L424 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:40,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:40,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1901168194, now seen corresponding path program 1 times [2018-11-10 11:07:40,867 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:40,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:40,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:40,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:40,901 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:40,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:40,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:07:40,953 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:40,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 11:07:40,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:07:40,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:07:40,971 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2018-11-10 11:07:40,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:40,998 INFO L93 Difference]: Finished difference Result 240 states and 391 transitions. [2018-11-10 11:07:40,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:07:40,999 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-10 11:07:41,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:41,009 INFO L225 Difference]: With dead ends: 240 [2018-11-10 11:07:41,009 INFO L226 Difference]: Without dead ends: 111 [2018-11-10 11:07:41,013 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 [2018-11-10 11:07:41,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-11-10 11:07:41,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-11-10 11:07:41,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-10 11:07:41,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 134 transitions. [2018-11-10 11:07:41,043 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 134 transitions. Word has length 14 [2018-11-10 11:07:41,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:41,043 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 134 transitions. [2018-11-10 11:07:41,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 11:07:41,044 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 134 transitions. [2018-11-10 11:07:41,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 11:07:41,044 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:41,044 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:41,044 INFO L424 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:41,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:41,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1660650102, now seen corresponding path program 1 times [2018-11-10 11:07:41,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:41,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:41,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:41,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:41,047 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:41,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:41,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:41,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 11:07:41,080 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:41,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 11:07:41,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 11:07:41,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:07:41,082 INFO L87 Difference]: Start difference. First operand 111 states and 134 transitions. Second operand 3 states. [2018-11-10 11:07:41,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:41,111 INFO L93 Difference]: Finished difference Result 216 states and 262 transitions. [2018-11-10 11:07:41,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 11:07:41,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-10 11:07:41,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:41,113 INFO L225 Difference]: With dead ends: 216 [2018-11-10 11:07:41,113 INFO L226 Difference]: Without dead ends: 118 [2018-11-10 11:07:41,115 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:07:41,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-10 11:07:41,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2018-11-10 11:07:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-11-10 11:07:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2018-11-10 11:07:41,124 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 16 [2018-11-10 11:07:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:41,125 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2018-11-10 11:07:41,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 11:07:41,125 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2018-11-10 11:07:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 11:07:41,125 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:41,125 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:41,126 INFO L424 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:41,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:41,126 INFO L82 PathProgramCache]: Analyzing trace with hash -2112489170, now seen corresponding path program 1 times [2018-11-10 11:07:41,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:41,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:41,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:41,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:41,128 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:41,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:41,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:41,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 11:07:41,210 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:41,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 11:07:41,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 11:07:41,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:07:41,211 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand 6 states. [2018-11-10 11:07:41,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:41,308 INFO L93 Difference]: Finished difference Result 163 states and 196 transitions. [2018-11-10 11:07:41,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 11:07:41,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-10 11:07:41,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:41,310 INFO L225 Difference]: With dead ends: 163 [2018-11-10 11:07:41,310 INFO L226 Difference]: Without dead ends: 158 [2018-11-10 11:07:41,311 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:07:41,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-11-10 11:07:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 119. [2018-11-10 11:07:41,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-11-10 11:07:41,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 142 transitions. [2018-11-10 11:07:41,318 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 142 transitions. Word has length 23 [2018-11-10 11:07:41,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:41,319 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 142 transitions. [2018-11-10 11:07:41,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 11:07:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 142 transitions. [2018-11-10 11:07:41,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 11:07:41,319 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:41,319 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:41,320 INFO L424 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:41,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:41,320 INFO L82 PathProgramCache]: Analyzing trace with hash 534541990, now seen corresponding path program 1 times [2018-11-10 11:07:41,320 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:41,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:41,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:41,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:41,321 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 11:07:41,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:41,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 11:07:41,393 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:41,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 11:07:41,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 11:07:41,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 11:07:41,394 INFO L87 Difference]: Start difference. First operand 119 states and 142 transitions. Second operand 5 states. [2018-11-10 11:07:41,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:41,582 INFO L93 Difference]: Finished difference Result 121 states and 143 transitions. [2018-11-10 11:07:41,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 11:07:41,582 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-10 11:07:41,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:41,583 INFO L225 Difference]: With dead ends: 121 [2018-11-10 11:07:41,584 INFO L226 Difference]: Without dead ends: 118 [2018-11-10 11:07:41,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:07:41,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-10 11:07:41,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-11-10 11:07:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-11-10 11:07:41,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 140 transitions. [2018-11-10 11:07:41,592 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 140 transitions. Word has length 31 [2018-11-10 11:07:41,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:41,593 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 140 transitions. [2018-11-10 11:07:41,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 11:07:41,593 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 140 transitions. [2018-11-10 11:07:41,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 11:07:41,593 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:41,594 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:41,594 INFO L424 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:41,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:41,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1253948128, now seen corresponding path program 1 times [2018-11-10 11:07:41,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:41,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:41,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:41,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:41,596 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 11:07:41,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:41,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 11:07:41,674 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:41,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 11:07:41,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 11:07:41,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 11:07:41,675 INFO L87 Difference]: Start difference. First operand 118 states and 140 transitions. Second operand 5 states. [2018-11-10 11:07:41,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:41,796 INFO L93 Difference]: Finished difference Result 120 states and 141 transitions. [2018-11-10 11:07:41,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 11:07:41,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-10 11:07:41,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:41,797 INFO L225 Difference]: With dead ends: 120 [2018-11-10 11:07:41,797 INFO L226 Difference]: Without dead ends: 117 [2018-11-10 11:07:41,798 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:07:41,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-11-10 11:07:41,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-11-10 11:07:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-11-10 11:07:41,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 138 transitions. [2018-11-10 11:07:41,804 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 138 transitions. Word has length 31 [2018-11-10 11:07:41,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:41,805 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 138 transitions. [2018-11-10 11:07:41,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 11:07:41,805 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2018-11-10 11:07:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 11:07:41,805 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:41,806 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:41,806 INFO L424 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:41,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:41,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1309830707, now seen corresponding path program 1 times [2018-11-10 11:07:41,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:41,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:41,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:41,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:41,807 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:41,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:41,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 11:07:41,916 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:41,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 11:07:41,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 11:07:41,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:07:41,917 INFO L87 Difference]: Start difference. First operand 117 states and 138 transitions. Second operand 8 states. [2018-11-10 11:07:42,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:42,079 INFO L93 Difference]: Finished difference Result 153 states and 179 transitions. [2018-11-10 11:07:42,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 11:07:42,079 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-10 11:07:42,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:42,080 INFO L225 Difference]: With dead ends: 153 [2018-11-10 11:07:42,081 INFO L226 Difference]: Without dead ends: 150 [2018-11-10 11:07:42,081 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-10 11:07:42,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-10 11:07:42,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 123. [2018-11-10 11:07:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-11-10 11:07:42,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2018-11-10 11:07:42,090 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 34 [2018-11-10 11:07:42,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:42,090 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2018-11-10 11:07:42,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 11:07:42,090 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2018-11-10 11:07:42,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 11:07:42,091 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:42,091 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:42,091 INFO L424 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:42,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:42,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1080201303, now seen corresponding path program 1 times [2018-11-10 11:07:42,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:42,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:42,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:42,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:42,093 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:42,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:42,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:42,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 11:07:42,186 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:42,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 11:07:42,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 11:07:42,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:07:42,187 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand 8 states. [2018-11-10 11:07:42,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:42,356 INFO L93 Difference]: Finished difference Result 152 states and 177 transitions. [2018-11-10 11:07:42,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 11:07:42,356 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-10 11:07:42,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:42,358 INFO L225 Difference]: With dead ends: 152 [2018-11-10 11:07:42,358 INFO L226 Difference]: Without dead ends: 149 [2018-11-10 11:07:42,358 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-10 11:07:42,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-11-10 11:07:42,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 129. [2018-11-10 11:07:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-11-10 11:07:42,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2018-11-10 11:07:42,367 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 34 [2018-11-10 11:07:42,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:42,367 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2018-11-10 11:07:42,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 11:07:42,367 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2018-11-10 11:07:42,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 11:07:42,368 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:42,368 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:42,368 INFO L424 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:42,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:42,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1484899372, now seen corresponding path program 1 times [2018-11-10 11:07:42,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:42,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:42,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:42,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:42,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:42,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:42,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:42,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 11:07:42,494 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:42,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 11:07:42,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 11:07:42,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:07:42,495 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 8 states. [2018-11-10 11:07:42,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:42,749 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2018-11-10 11:07:42,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 11:07:42,749 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-11-10 11:07:42,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:42,750 INFO L225 Difference]: With dead ends: 151 [2018-11-10 11:07:42,750 INFO L226 Difference]: Without dead ends: 148 [2018-11-10 11:07:42,751 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-10 11:07:42,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-10 11:07:42,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 132. [2018-11-10 11:07:42,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-11-10 11:07:42,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 153 transitions. [2018-11-10 11:07:42,758 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 153 transitions. Word has length 37 [2018-11-10 11:07:42,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:42,758 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 153 transitions. [2018-11-10 11:07:42,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 11:07:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 153 transitions. [2018-11-10 11:07:42,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 11:07:42,759 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:42,759 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:42,759 INFO L424 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:42,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:42,760 INFO L82 PathProgramCache]: Analyzing trace with hash -2074259378, now seen corresponding path program 1 times [2018-11-10 11:07:42,760 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:42,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:42,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:42,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:42,761 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:42,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:42,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:42,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 11:07:42,905 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:42,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 11:07:42,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 11:07:42,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:07:42,905 INFO L87 Difference]: Start difference. First operand 132 states and 153 transitions. Second operand 8 states. [2018-11-10 11:07:43,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:43,172 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2018-11-10 11:07:43,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 11:07:43,173 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-11-10 11:07:43,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:43,174 INFO L225 Difference]: With dead ends: 150 [2018-11-10 11:07:43,174 INFO L226 Difference]: Without dead ends: 147 [2018-11-10 11:07:43,175 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-10 11:07:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-11-10 11:07:43,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 135. [2018-11-10 11:07:43,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-11-10 11:07:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 156 transitions. [2018-11-10 11:07:43,183 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 156 transitions. Word has length 37 [2018-11-10 11:07:43,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:43,184 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 156 transitions. [2018-11-10 11:07:43,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 11:07:43,184 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 156 transitions. [2018-11-10 11:07:43,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-10 11:07:43,184 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:43,184 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:43,185 INFO L424 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:43,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:43,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1644339355, now seen corresponding path program 1 times [2018-11-10 11:07:43,185 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:43,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:43,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:43,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:43,186 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 11:07:43,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:43,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 11:07:43,243 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:43,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 11:07:43,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 11:07:43,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 11:07:43,244 INFO L87 Difference]: Start difference. First operand 135 states and 156 transitions. Second operand 5 states. [2018-11-10 11:07:43,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:43,358 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2018-11-10 11:07:43,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 11:07:43,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2018-11-10 11:07:43,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:43,360 INFO L225 Difference]: With dead ends: 137 [2018-11-10 11:07:43,360 INFO L226 Difference]: Without dead ends: 133 [2018-11-10 11:07:43,360 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-10 11:07:43,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-11-10 11:07:43,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-11-10 11:07:43,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-11-10 11:07:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 152 transitions. [2018-11-10 11:07:43,365 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 152 transitions. Word has length 43 [2018-11-10 11:07:43,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:43,365 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 152 transitions. [2018-11-10 11:07:43,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 11:07:43,365 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 152 transitions. [2018-11-10 11:07:43,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-10 11:07:43,366 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:43,366 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:43,366 INFO L424 AbstractCegarLoop]: === Iteration 11 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:43,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:43,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1569521016, now seen corresponding path program 1 times [2018-11-10 11:07:43,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:43,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:43,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:43,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:43,367 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:43,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:43,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:43,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 11:07:43,404 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:43,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 11:07:43,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 11:07:43,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:07:43,405 INFO L87 Difference]: Start difference. First operand 133 states and 152 transitions. Second operand 6 states. [2018-11-10 11:07:43,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:43,460 INFO L93 Difference]: Finished difference Result 165 states and 189 transitions. [2018-11-10 11:07:43,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 11:07:43,462 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-11-10 11:07:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:43,463 INFO L225 Difference]: With dead ends: 165 [2018-11-10 11:07:43,463 INFO L226 Difference]: Without dead ends: 162 [2018-11-10 11:07:43,464 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:07:43,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-11-10 11:07:43,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 140. [2018-11-10 11:07:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-11-10 11:07:43,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 160 transitions. [2018-11-10 11:07:43,476 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 160 transitions. Word has length 47 [2018-11-10 11:07:43,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:43,477 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 160 transitions. [2018-11-10 11:07:43,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 11:07:43,477 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 160 transitions. [2018-11-10 11:07:43,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-10 11:07:43,478 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:43,478 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:43,478 INFO L424 AbstractCegarLoop]: === Iteration 12 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:43,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:43,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1703259498, now seen corresponding path program 1 times [2018-11-10 11:07:43,478 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:43,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:43,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:43,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:43,479 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:43,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:43,661 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:07:43,661 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 11:07:43,662 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 51 with the following transitions: [2018-11-10 11:07:43,663 INFO L202 CegarAbsIntRunner]: [0], [3], [4], [74], [78], [84], [88], [96], [99], [181], [187], [191], [199], [205], [209], [217], [223], [227], [235], [241], [245], [251], [255], [259], [261], [264], [266], [271], [273], [278], [280], [287], [292], [294], [297], [322], [326], [332], [336], [344], [347], [436], [437], [438], [440], [441], [444], [448] [2018-11-10 11:07:43,707 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 11:07:43,707 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 11:07:44,353 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 11:07:44,355 INFO L272 AbstractInterpreter]: Visited 48 different actions 99 times. Merged at 13 different actions 21 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 53 variables. [2018-11-10 11:07:44,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:44,368 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 11:07:44,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:07:44,368 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:07:44,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:44,381 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 11:07:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:44,419 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:07:44,478 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 [2018-11-10 11:07:44,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:07:44,480 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:44,482 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:44,492 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 [2018-11-10 11:07:44,499 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:07:44,500 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:44,503 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:44,507 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:44,508 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:26, output treesize:3 [2018-11-10 11:07:44,579 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:07:44,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:07:44,581 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:44,582 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:44,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:07:44,588 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 11 treesize of output 3 [2018-11-10 11:07:44,588 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:44,589 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:44,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:44,592 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-10 11:07:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:44,603 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:07:44,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 11:07:44,785 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-10 11:07:44,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [9] total 19 [2018-11-10 11:07:44,785 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:44,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 11:07:44,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 11:07:44,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2018-11-10 11:07:44,786 INFO L87 Difference]: Start difference. First operand 140 states and 160 transitions. Second operand 11 states. [2018-11-10 11:07:45,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:45,142 INFO L93 Difference]: Finished difference Result 175 states and 200 transitions. [2018-11-10 11:07:45,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 11:07:45,142 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 50 [2018-11-10 11:07:45,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:45,143 INFO L225 Difference]: With dead ends: 175 [2018-11-10 11:07:45,144 INFO L226 Difference]: Without dead ends: 172 [2018-11-10 11:07:45,144 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 86 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2018-11-10 11:07:45,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-11-10 11:07:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 153. [2018-11-10 11:07:45,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-11-10 11:07:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 174 transitions. [2018-11-10 11:07:45,155 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 174 transitions. Word has length 50 [2018-11-10 11:07:45,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:45,155 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 174 transitions. [2018-11-10 11:07:45,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 11:07:45,155 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 174 transitions. [2018-11-10 11:07:45,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-10 11:07:45,156 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:45,156 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:45,156 INFO L424 AbstractCegarLoop]: === Iteration 13 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:45,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:45,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1593314505, now seen corresponding path program 1 times [2018-11-10 11:07:45,157 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:45,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:45,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:45,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:45,158 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:45,356 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:07:45,356 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 11:07:45,357 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 50 with the following transitions: [2018-11-10 11:07:45,357 INFO L202 CegarAbsIntRunner]: [0], [3], [4], [74], [78], [84], [88], [96], [99], [101], [105], [111], [115], [123], [129], [133], [141], [147], [151], [159], [165], [169], [175], [181], [187], [191], [199], [205], [209], [217], [220], [255], [259], [261], [264], [266], [271], [273], [278], [280], [287], [432], [436], [437], [438], [440] [2018-11-10 11:07:45,359 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 11:07:45,359 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 11:07:46,026 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 11:07:46,026 INFO L272 AbstractInterpreter]: Visited 46 different actions 149 times. Merged at 33 different actions 67 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 46 variables. [2018-11-10 11:07:46,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:46,030 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 11:07:46,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:07:46,030 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:07:46,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:46,040 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 11:07:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:46,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:07:46,101 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 [2018-11-10 11:07:46,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:07:46,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:46,107 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:46,114 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 [2018-11-10 11:07:46,116 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:07:46,117 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:46,119 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:46,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:46,124 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2018-11-10 11:07:46,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:07:46,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:07:46,150 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:46,152 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:46,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:07:46,160 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 11 treesize of output 3 [2018-11-10 11:07:46,161 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:46,163 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:46,166 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:46,167 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-10 11:07:46,182 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:46,182 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:07:46,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:46,242 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 11:07:46,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 14 [2018-11-10 11:07:46,243 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 11:07:46,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 11:07:46,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 11:07:46,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-11-10 11:07:46,243 INFO L87 Difference]: Start difference. First operand 153 states and 174 transitions. Second operand 11 states. [2018-11-10 11:07:46,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:46,436 INFO L93 Difference]: Finished difference Result 296 states and 339 transitions. [2018-11-10 11:07:46,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 11:07:46,437 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2018-11-10 11:07:46,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:46,438 INFO L225 Difference]: With dead ends: 296 [2018-11-10 11:07:46,438 INFO L226 Difference]: Without dead ends: 191 [2018-11-10 11:07:46,439 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 91 SyntacticMatches, 8 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2018-11-10 11:07:46,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-11-10 11:07:46,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 182. [2018-11-10 11:07:46,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-11-10 11:07:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 204 transitions. [2018-11-10 11:07:46,446 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 204 transitions. Word has length 49 [2018-11-10 11:07:46,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:46,446 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 204 transitions. [2018-11-10 11:07:46,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 11:07:46,446 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 204 transitions. [2018-11-10 11:07:46,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-10 11:07:46,447 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:46,447 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:46,447 INFO L424 AbstractCegarLoop]: === Iteration 14 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:46,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:46,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1070295510, now seen corresponding path program 1 times [2018-11-10 11:07:46,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:46,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:46,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:46,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:46,449 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:46,518 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 11:07:46,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:46,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 11:07:46,519 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:46,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 11:07:46,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 11:07:46,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 11:07:46,519 INFO L87 Difference]: Start difference. First operand 182 states and 204 transitions. Second operand 9 states. [2018-11-10 11:07:46,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:46,724 INFO L93 Difference]: Finished difference Result 199 states and 223 transitions. [2018-11-10 11:07:46,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 11:07:46,724 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2018-11-10 11:07:46,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:46,725 INFO L225 Difference]: With dead ends: 199 [2018-11-10 11:07:46,725 INFO L226 Difference]: Without dead ends: 196 [2018-11-10 11:07:46,725 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 11:07:46,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-11-10 11:07:46,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 185. [2018-11-10 11:07:46,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-11-10 11:07:46,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 207 transitions. [2018-11-10 11:07:46,733 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 207 transitions. Word has length 53 [2018-11-10 11:07:46,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:46,733 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 207 transitions. [2018-11-10 11:07:46,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 11:07:46,733 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 207 transitions. [2018-11-10 11:07:46,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-10 11:07:46,734 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:46,734 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:46,734 INFO L424 AbstractCegarLoop]: === Iteration 15 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:46,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:46,734 INFO L82 PathProgramCache]: Analyzing trace with hash 446889955, now seen corresponding path program 1 times [2018-11-10 11:07:46,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:46,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:46,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:46,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:46,735 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:46,761 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:46,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:07:46,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 11:07:46,761 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:07:46,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 11:07:46,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 11:07:46,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:07:46,762 INFO L87 Difference]: Start difference. First operand 185 states and 207 transitions. Second operand 6 states. [2018-11-10 11:07:46,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:46,836 INFO L93 Difference]: Finished difference Result 252 states and 292 transitions. [2018-11-10 11:07:46,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 11:07:46,836 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2018-11-10 11:07:46,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:46,837 INFO L225 Difference]: With dead ends: 252 [2018-11-10 11:07:46,837 INFO L226 Difference]: Without dead ends: 198 [2018-11-10 11:07:46,838 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:07:46,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-11-10 11:07:46,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 191. [2018-11-10 11:07:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-11-10 11:07:46,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 215 transitions. [2018-11-10 11:07:46,850 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 215 transitions. Word has length 58 [2018-11-10 11:07:46,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:46,850 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 215 transitions. [2018-11-10 11:07:46,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 11:07:46,850 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 215 transitions. [2018-11-10 11:07:46,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-10 11:07:46,851 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:46,851 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:46,851 INFO L424 AbstractCegarLoop]: === Iteration 16 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:46,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:46,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1638314735, now seen corresponding path program 2 times [2018-11-10 11:07:46,851 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:46,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:46,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:46,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:46,852 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:47,262 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:07:47,262 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 11:07:47,262 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-10 11:07:47,262 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-10 11:07:47,262 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:07:47,262 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:07:47,269 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-10 11:07:47,269 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-10 11:07:47,311 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-10 11:07:47,312 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 11:07:47,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:07:47,343 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 6 treesize of output 5 [2018-11-10 11:07:47,344 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,349 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,349 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:17 [2018-11-10 11:07:47,367 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 14 treesize of output 11 [2018-11-10 11:07:47,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 11:07:47,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-10 11:07:47,384 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,387 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,390 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,396 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,396 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:31, output treesize:21 [2018-11-10 11:07:47,415 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:47,416 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:47,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-10 11:07:47,417 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,420 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,420 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-11-10 11:07:47,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-10 11:07:47,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:07:47,439 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,443 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,448 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,448 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:23 [2018-11-10 11:07:47,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-11-10 11:07:47,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2018-11-10 11:07:47,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-10 11:07:47,493 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,500 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,521 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 0 case distinctions, treesize of input 21 treesize of output 21 [2018-11-10 11:07:47,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-10 11:07:47,525 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,531 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,544 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:07:47,565 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 [2018-11-10 11:07:47,567 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:07:47,568 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,570 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,588 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:07:47,588 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:45, output treesize:82 [2018-11-10 11:07:47,716 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 50 [2018-11-10 11:07:47,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:07:47,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,729 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,747 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 49 treesize of output 45 [2018-11-10 11:07:47,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:07:47,749 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,760 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,773 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. [2018-11-10 11:07:47,774 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:104, output treesize:82 [2018-11-10 11:07:47,943 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:47,944 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:47,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 46 [2018-11-10 11:07:47,956 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 27 [2018-11-10 11:07:47,958 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-10 11:07:47,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-10 11:07:47,967 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,968 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,969 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:47,969 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:55, output treesize:4 [2018-11-10 11:07:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:48,000 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:07:48,306 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 111 [2018-11-10 11:07:48,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 96 [2018-11-10 11:07:48,343 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:48,345 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 92 treesize of output 86 [2018-11-10 11:07:48,345 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:48,354 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:48,356 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 86 treesize of output 83 [2018-11-10 11:07:48,359 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:48,361 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 80 treesize of output 80 [2018-11-10 11:07:48,361 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:48,370 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:48,402 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 2 case distinctions, treesize of input 85 treesize of output 81 [2018-11-10 11:07:48,474 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:48,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 82 [2018-11-10 11:07:48,488 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 4 xjuncts. [2018-11-10 11:07:48,550 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 74 treesize of output 61 [2018-11-10 11:07:48,552 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:48,570 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 1 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 52 [2018-11-10 11:07:48,572 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:48,601 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 1 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 87 [2018-11-10 11:07:49,753 WARN L179 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 622 DAG size of output: 357 [2018-11-10 11:07:49,761 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:49,764 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:49,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 38 [2018-11-10 11:07:49,770 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:50,371 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:50,374 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:50,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 34 [2018-11-10 11:07:50,379 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:50,381 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:50,387 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:50,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 50 [2018-11-10 11:07:50,404 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:50,407 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:50,408 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:50,409 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:50,414 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:50,416 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:50,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 37 [2018-11-10 11:07:50,417 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:51,023 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:51,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2018-11-10 11:07:51,025 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:51,452 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:51,452 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:51,453 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:51,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2018-11-10 11:07:51,473 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:51,875 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:51,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2018-11-10 11:07:51,880 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:52,231 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:52,239 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:52,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 51 [2018-11-10 11:07:52,252 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:52,260 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:52,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 40 [2018-11-10 11:07:52,283 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 4 xjuncts. [2018-11-10 11:07:52,286 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:52,288 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:52,289 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:52,292 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:52,295 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:52,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 52 [2018-11-10 11:07:52,305 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:52,692 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:52,693 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:52,693 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:52,694 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2018-11-10 11:07:52,694 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:52,966 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:52,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2018-11-10 11:07:52,967 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:53,642 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:53,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 39 [2018-11-10 11:07:53,649 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:53,841 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:53,842 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 26 [2018-11-10 11:07:53,842 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:54,163 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,164 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,164 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,166 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:54,166 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 45 treesize of output 38 [2018-11-10 11:07:54,166 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:54,559 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,560 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,560 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 37 [2018-11-10 11:07:54,563 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:54,568 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,569 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,569 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,571 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:54,572 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 41 treesize of output 34 [2018-11-10 11:07:54,572 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:54,816 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 61 [2018-11-10 11:07:54,836 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 8 xjuncts. [2018-11-10 11:07:54,838 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,839 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,840 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,843 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:54,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 56 [2018-11-10 11:07:54,852 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 4 xjuncts. [2018-11-10 11:07:54,976 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,977 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:54,977 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:54,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2018-11-10 11:07:54,982 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:55,076 INFO L267 ElimStorePlain]: Start of recursive call 11: 20 dim-1 vars, End of recursive call: and 11 xjuncts. [2018-11-10 11:07:55,160 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 11 xjuncts. [2018-11-10 11:07:55,245 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 11 xjuncts. [2018-11-10 11:07:55,248 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 55 treesize of output 43 [2018-11-10 11:07:55,250 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,251 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 14 [2018-11-10 11:07:55,251 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:55,256 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:55,405 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 [2018-11-10 11:07:55,407 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,418 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 58 [2018-11-10 11:07:55,537 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2018-11-10 11:07:55,539 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2018-11-10 11:07:55,542 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:55,578 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,578 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,579 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:55,579 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-11-10 11:07:55,580 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:55,608 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 35 [2018-11-10 11:07:55,616 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:55,620 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,621 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,621 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,623 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:55,624 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 37 treesize of output 30 [2018-11-10 11:07:55,624 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:55,649 INFO L267 ElimStorePlain]: Start of recursive call 35: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:07:55,671 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:07:55,673 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 [2018-11-10 11:07:55,675 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,688 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 39 treesize of output 56 [2018-11-10 11:07:55,815 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2018-11-10 11:07:55,819 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,823 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,824 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:55,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2018-11-10 11:07:55,825 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:55,870 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,871 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-11-10 11:07:55,871 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:55,900 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,908 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 35 [2018-11-10 11:07:55,908 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:55,911 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,911 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,911 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:55,913 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:55,914 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 37 treesize of output 30 [2018-11-10 11:07:55,914 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:55,938 INFO L267 ElimStorePlain]: Start of recursive call 41: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:07:55,960 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:07:56,076 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 10 xjuncts. [2018-11-10 11:07:56,087 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 78 [2018-11-10 11:07:56,155 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 69 [2018-11-10 11:07:56,169 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 4 xjuncts. [2018-11-10 11:07:56,234 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 54 treesize of output 50 [2018-11-10 11:07:56,237 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 23 [2018-11-10 11:07:56,237 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:56,253 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,262 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 38 [2018-11-10 11:07:56,262 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:56,282 INFO L267 ElimStorePlain]: Start of recursive call 48: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:07:56,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 58 [2018-11-10 11:07:56,287 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,288 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 56 [2018-11-10 11:07:56,342 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,343 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,343 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:56,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-11-10 11:07:56,344 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:56,367 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 30 [2018-11-10 11:07:56,371 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 2 xjuncts. [2018-11-10 11:07:56,373 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,373 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,373 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,375 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,376 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 37 treesize of output 29 [2018-11-10 11:07:56,376 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:56,401 INFO L267 ElimStorePlain]: Start of recursive call 52: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:07:56,419 INFO L267 ElimStorePlain]: Start of recursive call 51: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:07:56,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 40 [2018-11-10 11:07:56,491 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-11-10 11:07:56,492 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:56,499 INFO L267 ElimStorePlain]: Start of recursive call 56: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:56,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 40 [2018-11-10 11:07:56,503 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:56,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 18 [2018-11-10 11:07:56,503 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:56,515 INFO L267 ElimStorePlain]: Start of recursive call 58: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:56,574 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-11-10 11:07:56,710 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 16 xjuncts. [2018-11-10 11:07:56,844 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 14 xjuncts. [2018-11-10 11:07:56,844 INFO L202 ElimStorePlain]: Needed 59 recursive calls to eliminate 6 variables, input treesize:183, output treesize:246 [2018-11-10 11:07:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:56,971 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 11:07:56,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 34 [2018-11-10 11:07:56,971 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 11:07:56,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-10 11:07:56,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-10 11:07:56,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2018-11-10 11:07:56,972 INFO L87 Difference]: Start difference. First operand 191 states and 215 transitions. Second operand 25 states. [2018-11-10 11:07:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:07:58,276 INFO L93 Difference]: Finished difference Result 235 states and 265 transitions. [2018-11-10 11:07:58,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-10 11:07:58,276 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 56 [2018-11-10 11:07:58,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:07:58,277 INFO L225 Difference]: With dead ends: 235 [2018-11-10 11:07:58,277 INFO L226 Difference]: Without dead ends: 232 [2018-11-10 11:07:58,277 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 94 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=260, Invalid=1810, Unknown=0, NotChecked=0, Total=2070 [2018-11-10 11:07:58,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-11-10 11:07:58,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 203. [2018-11-10 11:07:58,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-11-10 11:07:58,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 228 transitions. [2018-11-10 11:07:58,287 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 228 transitions. Word has length 56 [2018-11-10 11:07:58,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:07:58,287 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 228 transitions. [2018-11-10 11:07:58,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-10 11:07:58,287 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 228 transitions. [2018-11-10 11:07:58,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-10 11:07:58,288 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:07:58,288 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:07:58,288 INFO L424 AbstractCegarLoop]: === Iteration 17 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:07:58,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:58,288 INFO L82 PathProgramCache]: Analyzing trace with hash 751717275, now seen corresponding path program 1 times [2018-11-10 11:07:58,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:07:58,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:58,290 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 11:07:58,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:07:58,290 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:07:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:58,650 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:07:58,651 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 11:07:58,651 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 57 with the following transitions: [2018-11-10 11:07:58,651 INFO L202 CegarAbsIntRunner]: [0], [3], [4], [74], [78], [84], [88], [96], [101], [105], [111], [115], [123], [129], [133], [141], [144], [147], [151], [159], [165], [169], [175], [255], [259], [261], [264], [266], [271], [273], [278], [280], [287], [424], [436], [437], [438], [440] [2018-11-10 11:07:58,653 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 11:07:58,653 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 11:07:59,011 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 11:07:59,011 INFO L272 AbstractInterpreter]: Visited 38 different actions 117 times. Merged at 25 different actions 51 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 46 variables. [2018-11-10 11:07:59,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:07:59,013 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 11:07:59,013 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:07:59,013 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:07:59,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:07:59,020 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 11:07:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:07:59,058 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:07:59,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 11:07:59,089 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,094 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,094 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-10 11:07:59,114 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 [2018-11-10 11:07:59,117 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:07:59,117 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,119 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:07:59,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:07:59,127 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,130 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,134 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:31, output treesize:23 [2018-11-10 11:07:59,154 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:59,154 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:59,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-10 11:07:59,155 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,160 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,160 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:26 [2018-11-10 11:07:59,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-10 11:07:59,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:07:59,182 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,185 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-10 11:07:59,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:07:59,198 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,202 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,209 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,209 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:51, output treesize:29 [2018-11-10 11:07:59,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 34 [2018-11-10 11:07:59,241 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 25 [2018-11-10 11:07:59,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-10 11:07:59,244 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,249 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 34 [2018-11-10 11:07:59,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2018-11-10 11:07:59,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-10 11:07:59,288 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,292 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,306 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 20 treesize of output 22 [2018-11-10 11:07:59,307 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:07:59,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-10 11:07:59,309 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,313 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,323 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:07:59,338 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:07:59,338 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:54, output treesize:103 [2018-11-10 11:07:59,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 89 [2018-11-10 11:07:59,506 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 85 treesize of output 78 [2018-11-10 11:07:59,507 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,535 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:59,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 67 [2018-11-10 11:07:59,536 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,558 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:59,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2018-11-10 11:07:59,558 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,572 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,590 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:59,591 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 67 treesize of output 64 [2018-11-10 11:07:59,592 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:07:59,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2018-11-10 11:07:59,593 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,600 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,623 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-10 11:07:59,623 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:150, output treesize:102 [2018-11-10 11:07:59,715 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 43 treesize of output 31 [2018-11-10 11:07:59,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2018-11-10 11:07:59,716 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,719 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,722 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:07:59,722 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:4 [2018-11-10 11:07:59,739 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:07:59,740 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:08:00,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 132 [2018-11-10 11:08:00,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-11-10 11:08:00,214 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:00,240 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 57 [2018-11-10 11:08:00,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2018-11-10 11:08:00,288 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:00,291 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 47 treesize of output 46 [2018-11-10 11:08:00,292 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:00,294 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 42 treesize of output 41 [2018-11-10 11:08:00,294 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:00,388 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 34 treesize of output 42 [2018-11-10 11:08:00,389 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:00,400 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 41 treesize of output 49 [2018-11-10 11:08:00,400 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:00,500 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 34 treesize of output 34 [2018-11-10 11:08:00,504 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 10 [2018-11-10 11:08:00,504 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:00,522 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 25 treesize of output 17 [2018-11-10 11:08:00,522 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:00,547 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:00,556 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 41 [2018-11-10 11:08:00,565 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 39 [2018-11-10 11:08:00,599 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 32 treesize of output 24 [2018-11-10 11:08:00,600 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:00,626 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:00,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2018-11-10 11:08:00,626 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:00,642 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:00,679 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 57 [2018-11-10 11:08:00,795 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2018-11-10 11:08:00,800 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 37 treesize of output 29 [2018-11-10 11:08:00,801 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:00,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 31 [2018-11-10 11:08:00,916 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 4 xjuncts. [2018-11-10 11:08:01,012 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:01,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 28 [2018-11-10 11:08:01,016 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:01,113 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:01,113 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 18 [2018-11-10 11:08:01,113 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:01,191 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:01,191 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:01,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 22 [2018-11-10 11:08:01,193 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:01,263 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 31 treesize of output 23 [2018-11-10 11:08:01,263 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:01,307 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 [2018-11-10 11:08:01,308 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:01,342 INFO L267 ElimStorePlain]: Start of recursive call 17: 7 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:08:01,384 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:08:01,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-11-10 11:08:01,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2018-11-10 11:08:01,468 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:01,475 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:01,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 38 [2018-11-10 11:08:01,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 28 [2018-11-10 11:08:01,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 21 [2018-11-10 11:08:01,511 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:01,527 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:01,528 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 14 [2018-11-10 11:08:01,528 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:01,536 INFO L267 ElimStorePlain]: Start of recursive call 28: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:01,549 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:01,643 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-11-10 11:08:01,689 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-11-10 11:08:01,816 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 161 treesize of output 92 [2018-11-10 11:08:01,818 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 11 treesize of output 10 [2018-11-10 11:08:01,818 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:01,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 76 [2018-11-10 11:08:01,904 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 55 treesize of output 63 [2018-11-10 11:08:01,904 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:01,912 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 42 treesize of output 50 [2018-11-10 11:08:01,912 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:01,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 65 [2018-11-10 11:08:01,920 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:01,928 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 64 treesize of output 72 [2018-11-10 11:08:01,928 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:02,024 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 43 treesize of output 42 [2018-11-10 11:08:02,024 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,026 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 56 treesize of output 55 [2018-11-10 11:08:02,026 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 50 [2018-11-10 11:08:02,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 41 [2018-11-10 11:08:02,163 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,165 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 31 [2018-11-10 11:08:02,170 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:02,173 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 31 [2018-11-10 11:08:02,177 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:02,179 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 20 [2018-11-10 11:08:02,180 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,182 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:02,182 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,209 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,209 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-11-10 11:08:02,210 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,222 INFO L267 ElimStorePlain]: Start of recursive call 41: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:02,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:08:02,235 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,244 INFO L267 ElimStorePlain]: Start of recursive call 40: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:02,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2018-11-10 11:08:02,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:08:02,248 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 9 [2018-11-10 11:08:02,254 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,258 INFO L267 ElimStorePlain]: Start of recursive call 48: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-11-10 11:08:02,346 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 5 case distinctions, treesize of input 40 treesize of output 62 [2018-11-10 11:08:02,518 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 126 [2018-11-10 11:08:02,520 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,521 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:02,521 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2018-11-10 11:08:02,521 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,613 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,615 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 49 [2018-11-10 11:08:02,625 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 8 xjuncts. [2018-11-10 11:08:02,723 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,724 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 36 [2018-11-10 11:08:02,727 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:02,809 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,812 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 54 [2018-11-10 11:08:02,824 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 16 xjuncts. [2018-11-10 11:08:02,933 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,933 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,933 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,934 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2018-11-10 11:08:02,935 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:02,989 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,990 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:02,996 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 33 [2018-11-10 11:08:02,996 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 4 xjuncts. [2018-11-10 11:08:03,050 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,050 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,051 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2018-11-10 11:08:03,055 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:03,090 INFO L267 ElimStorePlain]: Start of recursive call 52: 7 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-10 11:08:03,117 INFO L267 ElimStorePlain]: Start of recursive call 51: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-10 11:08:03,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-11-10 11:08:03,128 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 27 [2018-11-10 11:08:03,128 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 4 xjuncts. [2018-11-10 11:08:03,144 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:03,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2018-11-10 11:08:03,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 13 [2018-11-10 11:08:03,148 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,152 INFO L267 ElimStorePlain]: Start of recursive call 62: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 50 [2018-11-10 11:08:03,161 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 32 treesize of output 37 [2018-11-10 11:08:03,185 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:03,186 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,188 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,192 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 33 [2018-11-10 11:08:03,193 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:03,194 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:03,194 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,195 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,197 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 33 [2018-11-10 11:08:03,201 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:03,236 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,236 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2018-11-10 11:08:03,237 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,248 INFO L267 ElimStorePlain]: Start of recursive call 65: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:03,258 INFO L267 ElimStorePlain]: Start of recursive call 64: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:03,406 INFO L267 ElimStorePlain]: Start of recursive call 33: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 12 xjuncts. [2018-11-10 11:08:03,489 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 12 xjuncts. [2018-11-10 11:08:03,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 69 [2018-11-10 11:08:03,692 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 11 treesize of output 10 [2018-11-10 11:08:03,692 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 56 [2018-11-10 11:08:03,757 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:03,757 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,759 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 41 treesize of output 40 [2018-11-10 11:08:03,760 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,791 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 36 treesize of output 44 [2018-11-10 11:08:03,792 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:03,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2018-11-10 11:08:03,815 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:03,816 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 21 treesize of output 24 [2018-11-10 11:08:03,826 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,826 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2018-11-10 11:08:03,827 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,829 INFO L267 ElimStorePlain]: Start of recursive call 78: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,833 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:08:03,833 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,835 INFO L267 ElimStorePlain]: Start of recursive call 77: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,857 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 29 treesize of output 33 [2018-11-10 11:08:03,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2018-11-10 11:08:03,871 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,872 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,873 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 16 treesize of output 10 [2018-11-10 11:08:03,873 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,874 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:03,875 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,880 INFO L267 ElimStorePlain]: Start of recursive call 82: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,890 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 [2018-11-10 11:08:03,890 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,898 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:03,899 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 25 treesize of output 26 [2018-11-10 11:08:03,910 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,910 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-10 11:08:03,911 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,914 INFO L267 ElimStorePlain]: Start of recursive call 86: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,916 INFO L267 ElimStorePlain]: Start of recursive call 81: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,921 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 33 treesize of output 35 [2018-11-10 11:08:03,926 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2018-11-10 11:08:03,926 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:03,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-10 11:08:03,948 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:03,948 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,950 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,951 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2018-11-10 11:08:03,952 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,956 INFO L267 ElimStorePlain]: Start of recursive call 90: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 23 [2018-11-10 11:08:03,967 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:03,967 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,969 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,969 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:03,969 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 16 treesize of output 10 [2018-11-10 11:08:03,970 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,975 INFO L267 ElimStorePlain]: Start of recursive call 93: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:03,987 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:03,996 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 3 case distinctions, treesize of input 27 treesize of output 47 [2018-11-10 11:08:04,045 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,046 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,049 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 28 [2018-11-10 11:08:04,050 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:04,069 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,070 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,070 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 25 treesize of output 19 [2018-11-10 11:08:04,070 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,086 INFO L267 ElimStorePlain]: Start of recursive call 96: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:04,097 INFO L267 ElimStorePlain]: Start of recursive call 88: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:08:04,109 INFO L267 ElimStorePlain]: Start of recursive call 73: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:04,116 INFO L267 ElimStorePlain]: Start of recursive call 71: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:04,119 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 96 treesize of output 67 [2018-11-10 11:08:04,121 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 11 treesize of output 10 [2018-11-10 11:08:04,121 INFO L267 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 56 [2018-11-10 11:08:04,183 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 34 treesize of output 33 [2018-11-10 11:08:04,183 INFO L267 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,184 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:04,184 INFO L267 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,210 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 30 treesize of output 36 [2018-11-10 11:08:04,210 INFO L267 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,232 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 30 treesize of output 30 [2018-11-10 11:08:04,234 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,235 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 18 treesize of output 9 [2018-11-10 11:08:04,235 INFO L267 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,255 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,260 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 19 [2018-11-10 11:08:04,260 INFO L267 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:04,268 INFO L267 ElimStorePlain]: Start of recursive call 105: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:04,281 INFO L267 ElimStorePlain]: Start of recursive call 101: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:04,289 INFO L267 ElimStorePlain]: Start of recursive call 99: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:04,291 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 101 treesize of output 72 [2018-11-10 11:08:04,294 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 11 treesize of output 10 [2018-11-10 11:08:04,294 INFO L267 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,308 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 41 [2018-11-10 11:08:04,322 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 18 treesize of output 15 [2018-11-10 11:08:04,323 INFO L267 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,334 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 20 treesize of output 16 [2018-11-10 11:08:04,336 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-10 11:08:04,338 INFO L267 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,341 INFO L267 ElimStorePlain]: Start of recursive call 112: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-10 11:08:04,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2018-11-10 11:08:04,357 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:04,357 INFO L267 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,359 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,359 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,361 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-11-10 11:08:04,362 INFO L267 ElimStorePlain]: Start of recursive call 117: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,369 INFO L267 ElimStorePlain]: Start of recursive call 115: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,373 INFO L267 ElimStorePlain]: Start of recursive call 114: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,379 INFO L267 ElimStorePlain]: Start of recursive call 110: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:04,391 INFO L267 ElimStorePlain]: Start of recursive call 108: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:04,394 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 94 treesize of output 65 [2018-11-10 11:08:04,396 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 11 treesize of output 10 [2018-11-10 11:08:04,397 INFO L267 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,411 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 46 treesize of output 42 [2018-11-10 11:08:04,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 11:08:04,424 INFO L267 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,440 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2018-11-10 11:08:04,442 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-10 11:08:04,443 INFO L267 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:08:04,448 INFO L267 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,455 INFO L267 ElimStorePlain]: Start of recursive call 122: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,457 INFO L267 ElimStorePlain]: Start of recursive call 120: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,462 INFO L267 ElimStorePlain]: Start of recursive call 118: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,464 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 101 treesize of output 72 [2018-11-10 11:08:04,467 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 11 treesize of output 10 [2018-11-10 11:08:04,467 INFO L267 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2018-11-10 11:08:04,502 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 15 [2018-11-10 11:08:04,502 INFO L267 ElimStorePlain]: Start of recursive call 128: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,511 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 17 treesize of output 13 [2018-11-10 11:08:04,513 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-10 11:08:04,515 INFO L267 ElimStorePlain]: Start of recursive call 130: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,517 INFO L267 ElimStorePlain]: Start of recursive call 129: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,518 INFO L267 ElimStorePlain]: Start of recursive call 127: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,525 INFO L267 ElimStorePlain]: Start of recursive call 125: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,530 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 96 treesize of output 67 [2018-11-10 11:08:04,532 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 11 treesize of output 10 [2018-11-10 11:08:04,532 INFO L267 ElimStorePlain]: Start of recursive call 132: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2018-11-10 11:08:04,561 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 11:08:04,561 INFO L267 ElimStorePlain]: Start of recursive call 134: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,574 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 27 [2018-11-10 11:08:04,583 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-10 11:08:04,586 INFO L267 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:08:04,603 INFO L267 ElimStorePlain]: Start of recursive call 137: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,606 INFO L267 ElimStorePlain]: Start of recursive call 135: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 34 [2018-11-10 11:08:04,615 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,617 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 29 [2018-11-10 11:08:04,633 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,635 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2018-11-10 11:08:04,635 INFO L267 ElimStorePlain]: Start of recursive call 140: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,638 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,639 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,640 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,648 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-11-10 11:08:04,649 INFO L267 ElimStorePlain]: Start of recursive call 141: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,660 INFO L267 ElimStorePlain]: Start of recursive call 139: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:04,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:08:04,670 INFO L267 ElimStorePlain]: Start of recursive call 142: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,676 INFO L267 ElimStorePlain]: Start of recursive call 138: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:04,683 INFO L267 ElimStorePlain]: Start of recursive call 133: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:04,694 INFO L267 ElimStorePlain]: Start of recursive call 131: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:04,697 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 69 [2018-11-10 11:08:04,699 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 11 treesize of output 10 [2018-11-10 11:08:04,699 INFO L267 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,721 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 56 [2018-11-10 11:08:04,763 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 [2018-11-10 11:08:04,763 INFO L267 ElimStorePlain]: Start of recursive call 146: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,765 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 34 treesize of output 33 [2018-11-10 11:08:04,765 INFO L267 ElimStorePlain]: Start of recursive call 147: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,809 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 40 treesize of output 46 [2018-11-10 11:08:04,809 INFO L267 ElimStorePlain]: Start of recursive call 148: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,812 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 39 [2018-11-10 11:08:04,812 INFO L267 ElimStorePlain]: Start of recursive call 149: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2018-11-10 11:08:04,865 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,873 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 45 [2018-11-10 11:08:04,919 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,919 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,919 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,920 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-11-10 11:08:04,921 INFO L267 ElimStorePlain]: Start of recursive call 152: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,923 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:04,923 INFO L267 ElimStorePlain]: Start of recursive call 153: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:04,942 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,943 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,944 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,945 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 41 [2018-11-10 11:08:04,952 INFO L267 ElimStorePlain]: Start of recursive call 154: End of recursive call: and 4 xjuncts. [2018-11-10 11:08:04,973 INFO L267 ElimStorePlain]: Start of recursive call 151: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:04,983 INFO L267 ElimStorePlain]: Start of recursive call 150: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:04,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-10 11:08:04,987 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:04,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 19 [2018-11-10 11:08:04,991 INFO L267 ElimStorePlain]: Start of recursive call 156: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:05,000 INFO L267 ElimStorePlain]: Start of recursive call 155: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:05,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 39 [2018-11-10 11:08:05,054 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 34 treesize of output 28 [2018-11-10 11:08:05,054 INFO L267 ElimStorePlain]: Start of recursive call 158: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:05,067 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,074 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2018-11-10 11:08:05,128 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,128 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,129 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,130 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2018-11-10 11:08:05,131 INFO L267 ElimStorePlain]: Start of recursive call 160: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:05,133 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,134 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 36 treesize of output 27 [2018-11-10 11:08:05,135 INFO L267 ElimStorePlain]: Start of recursive call 161: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:05,172 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 31 [2018-11-10 11:08:05,176 INFO L267 ElimStorePlain]: Start of recursive call 162: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:05,179 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,179 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,180 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,181 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 45 [2018-11-10 11:08:05,189 INFO L267 ElimStorePlain]: Start of recursive call 163: End of recursive call: and 4 xjuncts. [2018-11-10 11:08:05,217 INFO L267 ElimStorePlain]: Start of recursive call 159: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:05,236 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2018-11-10 11:08:05,248 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,249 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,249 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,250 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-11-10 11:08:05,251 INFO L267 ElimStorePlain]: Start of recursive call 165: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:05,253 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2018-11-10 11:08:05,254 INFO L267 ElimStorePlain]: Start of recursive call 166: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:05,265 INFO L267 ElimStorePlain]: Start of recursive call 164: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:05,283 INFO L267 ElimStorePlain]: Start of recursive call 157: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:08:05,288 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 30 treesize of output 32 [2018-11-10 11:08:05,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 21 [2018-11-10 11:08:05,291 INFO L267 ElimStorePlain]: Start of recursive call 168: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:05,303 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 12 [2018-11-10 11:08:05,304 INFO L267 ElimStorePlain]: Start of recursive call 169: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:05,315 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:05,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2018-11-10 11:08:05,320 INFO L267 ElimStorePlain]: Start of recursive call 170: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:05,332 INFO L267 ElimStorePlain]: Start of recursive call 167: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:08:05,391 INFO L267 ElimStorePlain]: Start of recursive call 145: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-11-10 11:08:05,418 INFO L267 ElimStorePlain]: Start of recursive call 143: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-11-10 11:08:05,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 3 dim-2 vars, End of recursive call: 14 dim-0 vars, and 17 xjuncts. [2018-11-10 11:08:05,620 INFO L202 ElimStorePlain]: Needed 170 recursive calls to eliminate 13 variables, input treesize:323, output treesize:309 [2018-11-10 11:08:05,756 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:05,773 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 11:08:05,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 34 [2018-11-10 11:08:05,773 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 11:08:05,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-10 11:08:05,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-10 11:08:05,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1022, Unknown=4, NotChecked=0, Total=1122 [2018-11-10 11:08:05,774 INFO L87 Difference]: Start difference. First operand 203 states and 228 transitions. Second operand 25 states. [2018-11-10 11:08:08,038 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 62 [2018-11-10 11:08:08,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:08,162 INFO L93 Difference]: Finished difference Result 401 states and 458 transitions. [2018-11-10 11:08:08,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-10 11:08:08,164 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 56 [2018-11-10 11:08:08,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:08,165 INFO L225 Difference]: With dead ends: 401 [2018-11-10 11:08:08,165 INFO L226 Difference]: Without dead ends: 317 [2018-11-10 11:08:08,166 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 95 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=409, Invalid=2893, Unknown=4, NotChecked=0, Total=3306 [2018-11-10 11:08:08,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2018-11-10 11:08:08,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 284. [2018-11-10 11:08:08,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2018-11-10 11:08:08,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 314 transitions. [2018-11-10 11:08:08,183 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 314 transitions. Word has length 56 [2018-11-10 11:08:08,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:08,184 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 314 transitions. [2018-11-10 11:08:08,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-10 11:08:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 314 transitions. [2018-11-10 11:08:08,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-10 11:08:08,185 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:08,185 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:08,185 INFO L424 AbstractCegarLoop]: === Iteration 18 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:08,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:08,185 INFO L82 PathProgramCache]: Analyzing trace with hash 239415261, now seen corresponding path program 1 times [2018-11-10 11:08:08,185 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:08:08,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:08:08,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:08,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:08:08,186 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:08:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 11:08:08,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:08,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 11:08:08,269 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:08:08,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 11:08:08,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 11:08:08,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-10 11:08:08,270 INFO L87 Difference]: Start difference. First operand 284 states and 314 transitions. Second operand 10 states. [2018-11-10 11:08:08,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:08,487 INFO L93 Difference]: Finished difference Result 327 states and 372 transitions. [2018-11-10 11:08:08,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 11:08:08,488 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2018-11-10 11:08:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:08,490 INFO L225 Difference]: With dead ends: 327 [2018-11-10 11:08:08,490 INFO L226 Difference]: Without dead ends: 324 [2018-11-10 11:08:08,490 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-11-10 11:08:08,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2018-11-10 11:08:08,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 297. [2018-11-10 11:08:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-11-10 11:08:08,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 335 transitions. [2018-11-10 11:08:08,508 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 335 transitions. Word has length 59 [2018-11-10 11:08:08,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:08,508 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 335 transitions. [2018-11-10 11:08:08,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 11:08:08,508 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 335 transitions. [2018-11-10 11:08:08,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-10 11:08:08,509 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:08,509 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:08,509 INFO L424 AbstractCegarLoop]: === Iteration 19 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:08,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:08,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1983480323, now seen corresponding path program 1 times [2018-11-10 11:08:08,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:08:08,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:08:08,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:08,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:08:08,510 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:08:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 11:08:08,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:08,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 11:08:08,621 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:08:08,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 11:08:08,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 11:08:08,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-10 11:08:08,622 INFO L87 Difference]: Start difference. First operand 297 states and 335 transitions. Second operand 10 states. [2018-11-10 11:08:08,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:08,962 INFO L93 Difference]: Finished difference Result 314 states and 355 transitions. [2018-11-10 11:08:08,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 11:08:08,963 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2018-11-10 11:08:08,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:08,965 INFO L225 Difference]: With dead ends: 314 [2018-11-10 11:08:08,965 INFO L226 Difference]: Without dead ends: 309 [2018-11-10 11:08:08,965 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-11-10 11:08:08,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2018-11-10 11:08:08,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 301. [2018-11-10 11:08:08,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2018-11-10 11:08:08,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 339 transitions. [2018-11-10 11:08:08,983 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 339 transitions. Word has length 59 [2018-11-10 11:08:08,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:08,984 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 339 transitions. [2018-11-10 11:08:08,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 11:08:08,984 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 339 transitions. [2018-11-10 11:08:08,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-10 11:08:08,985 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:08,985 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:08,985 INFO L424 AbstractCegarLoop]: === Iteration 20 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:08,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:08,985 INFO L82 PathProgramCache]: Analyzing trace with hash 877890064, now seen corresponding path program 1 times [2018-11-10 11:08:08,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:08:08,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:08:08,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:08,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:08:08,986 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:08:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:09,611 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:08:09,611 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 11:08:09,611 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 60 with the following transitions: [2018-11-10 11:08:09,611 INFO L202 CegarAbsIntRunner]: [0], [3], [4], [74], [78], [84], [88], [96], [99], [101], [105], [111], [115], [123], [129], [133], [141], [147], [151], [159], [165], [169], [175], [181], [187], [191], [199], [205], [209], [217], [223], [227], [235], [238], [255], [259], [261], [264], [266], [271], [273], [278], [280], [287], [434], [436], [437], [438], [440] [2018-11-10 11:08:09,613 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 11:08:09,613 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 11:08:10,162 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 11:08:10,162 INFO L272 AbstractInterpreter]: Visited 49 different actions 161 times. Merged at 36 different actions 73 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 46 variables. [2018-11-10 11:08:10,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:10,167 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 11:08:10,167 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:08:10,167 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:08:10,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:10,176 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 11:08:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:10,218 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:10,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 11:08:10,221 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,226 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,226 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 11:08:10,231 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,232 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-10 11:08:10,233 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,267 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:08:10,269 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 8 treesize of output 7 [2018-11-10 11:08:10,269 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,271 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:08:10,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:10,287 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,288 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-11-10 11:08:10,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-10 11:08:10,303 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,303 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,310 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:68, output treesize:39 [2018-11-10 11:08:10,335 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 23 [2018-11-10 11:08:10,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 11:08:10,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-10 11:08:10,339 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,342 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,347 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,358 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 27 [2018-11-10 11:08:10,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 11:08:10,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-10 11:08:10,365 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,368 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,372 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,381 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,381 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:64, output treesize:51 [2018-11-10 11:08:10,403 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,404 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,404 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,405 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-10 11:08:10,406 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,418 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,418 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:71 [2018-11-10 11:08:10,447 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,448 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,449 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,449 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,450 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 37 [2018-11-10 11:08:10,451 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,470 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 62 [2018-11-10 11:08:10,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:10,477 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,484 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,500 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 47 [2018-11-10 11:08:10,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:10,506 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,512 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,526 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,526 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:101, output treesize:71 [2018-11-10 11:08:10,557 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2018-11-10 11:08:10,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-10 11:08:10,565 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-10 11:08:10,565 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,568 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,575 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,590 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,594 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 77 [2018-11-10 11:08:10,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-10 11:08:10,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-10 11:08:10,598 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,602 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,609 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,623 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,623 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:93, output treesize:115 [2018-11-10 11:08:10,829 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,830 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:10,831 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,833 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 150 [2018-11-10 11:08:10,846 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 92 [2018-11-10 11:08:10,848 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-10 11:08:10,876 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 114 [2018-11-10 11:08:10,887 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 11:08:10,890 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:10,892 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 0 case distinctions, treesize of input 82 treesize of output 80 [2018-11-10 11:08:10,892 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:08:10,937 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:10,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2018-11-10 11:08:10,938 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,940 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:10,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 86 [2018-11-10 11:08:10,940 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,941 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:10,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 68 [2018-11-10 11:08:10,942 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:10,975 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2018-11-10 11:08:11,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2018-11-10 11:08:11,008 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:11,008 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2018-11-10 11:08:11,008 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,019 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 7 [2018-11-10 11:08:11,019 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,026 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 11 treesize of output 1 [2018-11-10 11:08:11,027 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,031 INFO L267 ElimStorePlain]: Start of recursive call 9: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 53 [2018-11-10 11:08:11,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2018-11-10 11:08:11,036 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-10 11:08:11,043 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:08:11,050 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,055 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 53 [2018-11-10 11:08:11,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-11-10 11:08:11,060 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,068 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-11-10 11:08:11,068 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-10 11:08:11,075 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,079 INFO L267 ElimStorePlain]: Start of recursive call 17: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:11,095 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:11,095 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 3 variables, input treesize:191, output treesize:15 [2018-11-10 11:08:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:11,125 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:08:17,515 WARN L179 SmtUtils]: Spent 4.05 s on a formula simplification that was a NOOP. DAG size: 75 [2018-11-10 11:08:21,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 625 treesize of output 496 [2018-11-10 11:08:21,180 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:21,183 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 678 treesize of output 686 [2018-11-10 11:08:21,184 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:08:21,204 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:08:21,238 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:08:21,408 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 625 treesize of output 570 [2018-11-10 11:08:21,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 11:08:21,479 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:21,515 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:21,544 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 343 treesize of output 353 [2018-11-10 11:08:21,548 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 339 treesize of output 342 [2018-11-10 11:08:21,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-10 11:08:21,553 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:21,571 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:21,636 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:21,637 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 336 [2018-11-10 11:08:21,640 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:21,642 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2018-11-10 11:08:21,642 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:21,657 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:21,712 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:21,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 335 treesize of output 346 [2018-11-10 11:08:21,828 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 614 treesize of output 613 [2018-11-10 11:08:21,829 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:21,831 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 326 treesize of output 325 [2018-11-10 11:08:21,832 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:21,833 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:08:21,834 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:21,937 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:21,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 317 treesize of output 323 [2018-11-10 11:08:21,967 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 3 case distinctions, treesize of input 22 treesize of output 30 [2018-11-10 11:08:21,967 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-10 11:08:21,999 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:22,074 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:22,085 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 319 treesize of output 320 [2018-11-10 11:08:22,088 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 311 treesize of output 305 [2018-11-10 11:08:22,088 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:22,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 302 treesize of output 305 [2018-11-10 11:08:22,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 296 treesize of output 281 [2018-11-10 11:08:22,145 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:22,154 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:22,380 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:08:22,381 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_prenex_126 term size 47 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.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) [2018-11-10 11:08:22,383 INFO L168 Benchmark]: Toolchain (without parser) took 42560.70 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 859.3 MB). Free memory was 956.4 MB in the beginning and 1.7 GB in the end (delta: -703.5 MB). Peak memory consumption was 155.8 MB. Max. memory is 11.5 GB. [2018-11-10 11:08:22,384 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:08:22,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.52 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 926.9 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-10 11:08:22,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 926.9 MB in the beginning and 1.1 GB in the end (delta: -207.2 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2018-11-10 11:08:22,384 INFO L168 Benchmark]: Boogie Preprocessor took 41.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-10 11:08:22,384 INFO L168 Benchmark]: RCFGBuilder took 534.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 67.2 MB). Peak memory consumption was 67.2 MB. Max. memory is 11.5 GB. [2018-11-10 11:08:22,384 INFO L168 Benchmark]: TraceAbstraction took 41589.55 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 718.8 MB). Free memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: -599.9 MB). Peak memory consumption was 118.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:08:22,386 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.52 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 926.9 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 926.9 MB in the beginning and 1.1 GB in the end (delta: -207.2 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 534.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 67.2 MB). Peak memory consumption was 67.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 41589.55 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 718.8 MB). Free memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: -599.9 MB). Peak memory consumption was 118.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_prenex_126 term size 47 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_prenex_126 term size 47: 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 [2018-11-10 11:08:23,798 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:08:23,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:08:23,807 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:08:23,807 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:08:23,807 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:08:23,808 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:08:23,809 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:08:23,810 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:08:23,811 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:08:23,812 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:08:23,812 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:08:23,813 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:08:23,813 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:08:23,814 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:08:23,815 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:08:23,816 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:08:23,817 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:08:23,818 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:08:23,820 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:08:23,821 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:08:23,821 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:08:23,823 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:08:23,824 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:08:23,824 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:08:23,825 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:08:23,826 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:08:23,826 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:08:23,827 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:08:23,828 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:08:23,828 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:08:23,829 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:08:23,829 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:08:23,829 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:08:23,830 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:08:23,830 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:08:23,830 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 11:08:23,841 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:08:23,841 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:08:23,842 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:08:23,842 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 11:08:23,842 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 11:08:23,843 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 11:08:23,843 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 11:08:23,843 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 11:08:23,844 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:08:23,844 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:08:23,844 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:08:23,844 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:08:23,844 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:08:23,844 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:08:23,845 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:08:23,845 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 11:08:23,845 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 11:08:23,845 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:08:23,845 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:08:23,845 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:08:23,845 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:08:23,845 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:08:23,846 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:08:23,846 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:08:23,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:08:23,846 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:08:23,846 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:08:23,846 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:08:23,846 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 11:08:23,846 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:08:23,846 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 11:08:23,846 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 11:08:23,846 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_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6399ca05df7547b7620299987a8a06e9e2c006b [2018-11-10 11:08:23,878 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:08:23,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:08:23,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:08:23,890 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:08:23,890 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:08:23,890 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-10 11:08:23,926 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/data/28409e154/959d691784204f719bf7000b7b07d52c/FLAG66fbcc685 [2018-11-10 11:08:24,360 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:08:24,361 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-10 11:08:24,368 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/data/28409e154/959d691784204f719bf7000b7b07d52c/FLAG66fbcc685 [2018-11-10 11:08:24,376 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/data/28409e154/959d691784204f719bf7000b7b07d52c [2018-11-10 11:08:24,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:08:24,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:08:24,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:08:24,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:08:24,381 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:08:24,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f487037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24, skipping insertion in model container [2018-11-10 11:08:24,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:08:24,418 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:08:24,632 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:08:24,641 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:08:24,685 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:08:24,715 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:08:24,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24 WrapperNode [2018-11-10 11:08:24,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:08:24,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:08:24,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:08:24,717 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:08:24,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:08:24,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:08:24,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:08:24,805 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:08:24,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (1/1) ... [2018-11-10 11:08:24,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:08:24,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:08:24,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:08:24,842 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:08:24,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:08:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_before [2018-11-10 11:08:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_before [2018-11-10 11:08:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_after [2018-11-10 11:08:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_after [2018-11-10 11:08:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-11-10 11:08:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-11-10 11:08:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-10 11:08:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-10 11:08:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:08:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:08:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure merge_pair [2018-11-10 11:08:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_pair [2018-11-10 11:08:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:08:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:08:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sort_core [2018-11-10 11:08:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2018-11-10 11:08:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:08:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:08:25,495 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:08:25,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:08:25 BoogieIcfgContainer [2018-11-10 11:08:25,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:08:25,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:08:25,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:08:25,499 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:08:25,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:08:24" (1/3) ... [2018-11-10 11:08:25,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7233640f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:08:25, skipping insertion in model container [2018-11-10 11:08:25,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:08:24" (2/3) ... [2018-11-10 11:08:25,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7233640f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:08:25, skipping insertion in model container [2018-11-10 11:08:25,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:08:25" (3/3) ... [2018-11-10 11:08:25,502 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-10 11:08:25,511 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:08:25,518 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:08:25,531 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:08:25,551 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:08:25,551 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:08:25,552 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:08:25,552 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:08:25,552 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:08:25,552 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:08:25,552 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:08:25,552 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:08:25,552 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:08:25,565 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2018-11-10 11:08:25,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 11:08:25,569 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:25,570 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:25,571 INFO L424 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:25,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:25,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1741248485, now seen corresponding path program 1 times [2018-11-10 11:08:25,577 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:25,578 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:25,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:25,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:25,635 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:08:25,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:25,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:08:25,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 11:08:25,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:08:25,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:08:25,649 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 2 states. [2018-11-10 11:08:25,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:25,677 INFO L93 Difference]: Finished difference Result 238 states and 389 transitions. [2018-11-10 11:08:25,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:08:25,678 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-10 11:08:25,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:25,687 INFO L225 Difference]: With dead ends: 238 [2018-11-10 11:08:25,687 INFO L226 Difference]: Without dead ends: 110 [2018-11-10 11:08:25,690 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:08:25,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-11-10 11:08:25,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-11-10 11:08:25,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-11-10 11:08:25,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2018-11-10 11:08:25,722 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 14 [2018-11-10 11:08:25,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:25,723 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2018-11-10 11:08:25,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 11:08:25,723 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2018-11-10 11:08:25,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 11:08:25,724 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:25,724 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:25,724 INFO L424 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:25,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:25,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1329991044, now seen corresponding path program 1 times [2018-11-10 11:08:25,725 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:25,725 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:25,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:25,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:25,788 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:08:25,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:25,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 11:08:25,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 11:08:25,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 11:08:25,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:08:25,791 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand 3 states. [2018-11-10 11:08:25,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:25,833 INFO L93 Difference]: Finished difference Result 214 states and 260 transitions. [2018-11-10 11:08:25,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 11:08:25,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-10 11:08:25,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:25,837 INFO L225 Difference]: With dead ends: 214 [2018-11-10 11:08:25,837 INFO L226 Difference]: Without dead ends: 116 [2018-11-10 11:08:25,838 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:08:25,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-11-10 11:08:25,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2018-11-10 11:08:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-11-10 11:08:25,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2018-11-10 11:08:25,849 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 15 [2018-11-10 11:08:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:25,850 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2018-11-10 11:08:25,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 11:08:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2018-11-10 11:08:25,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 11:08:25,850 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:25,850 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:25,851 INFO L424 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:25,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:25,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1797770310, now seen corresponding path program 1 times [2018-11-10 11:08:25,852 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:25,852 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:25,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:25,915 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:25,941 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (4)] Exception during sending of exit command (exit): Broken pipe [2018-11-10 11:08:25,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:25,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 11:08:25,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 11:08:25,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 11:08:25,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:08:25,945 INFO L87 Difference]: Start difference. First operand 112 states and 135 transitions. Second operand 6 states. [2018-11-10 11:08:26,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:26,163 INFO L93 Difference]: Finished difference Result 161 states and 194 transitions. [2018-11-10 11:08:26,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 11:08:26,164 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-10 11:08:26,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:26,165 INFO L225 Difference]: With dead ends: 161 [2018-11-10 11:08:26,165 INFO L226 Difference]: Without dead ends: 156 [2018-11-10 11:08:26,166 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:08:26,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-11-10 11:08:26,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 117. [2018-11-10 11:08:26,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-11-10 11:08:26,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 140 transitions. [2018-11-10 11:08:26,178 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 140 transitions. Word has length 21 [2018-11-10 11:08:26,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:26,179 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 140 transitions. [2018-11-10 11:08:26,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 11:08:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 140 transitions. [2018-11-10 11:08:26,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 11:08:26,180 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:26,180 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:26,180 INFO L424 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:26,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:26,180 INFO L82 PathProgramCache]: Analyzing trace with hash -612706766, now seen corresponding path program 1 times [2018-11-10 11:08:26,181 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:26,181 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:26,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:26,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:26,291 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 [2018-11-10 11:08:26,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:26,295 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,317 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 [2018-11-10 11:08:26,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:26,319 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,321 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,329 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,329 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:23, output treesize:1 [2018-11-10 11:08:26,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-10 11:08:26,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-10 11:08:26,370 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,373 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-10 11:08:26,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-10 11:08:26,385 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,387 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,391 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:37, output treesize:7 [2018-11-10 11:08:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 11:08:26,403 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:08:26,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:26,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 11:08:26,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 11:08:26,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 11:08:26,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 11:08:26,405 INFO L87 Difference]: Start difference. First operand 117 states and 140 transitions. Second operand 5 states. [2018-11-10 11:08:26,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:26,820 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2018-11-10 11:08:26,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 11:08:26,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-10 11:08:26,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:26,825 INFO L225 Difference]: With dead ends: 119 [2018-11-10 11:08:26,825 INFO L226 Difference]: Without dead ends: 116 [2018-11-10 11:08:26,825 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:08:26,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-11-10 11:08:26,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-11-10 11:08:26,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-11-10 11:08:26,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 138 transitions. [2018-11-10 11:08:26,833 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 138 transitions. Word has length 29 [2018-11-10 11:08:26,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:26,834 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 138 transitions. [2018-11-10 11:08:26,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 11:08:26,834 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 138 transitions. [2018-11-10 11:08:26,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 11:08:26,834 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:26,835 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:26,836 INFO L424 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:26,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:26,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1893770412, now seen corresponding path program 1 times [2018-11-10 11:08:26,837 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:26,837 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:26,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:26,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:26,918 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 [2018-11-10 11:08:26,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:26,920 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,923 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,936 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 [2018-11-10 11:08:26,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:26,939 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,941 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,947 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,947 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:23, output treesize:1 [2018-11-10 11:08:26,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-10 11:08:26,978 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 16 treesize of output 4 [2018-11-10 11:08:26,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:26,985 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,011 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 14 treesize of output 12 [2018-11-10 11:08:27,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-10 11:08:27,014 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,015 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2018-11-10 11:08:27,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-10 11:08:27,032 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,039 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-10 11:08:27,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-10 11:08:27,056 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,058 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:27,061 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:59, output treesize:9 [2018-11-10 11:08:27,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 11:08:27,072 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:08:27,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:27,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 11:08:27,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 11:08:27,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 11:08:27,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 11:08:27,075 INFO L87 Difference]: Start difference. First operand 116 states and 138 transitions. Second operand 5 states. [2018-11-10 11:08:27,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:27,415 INFO L93 Difference]: Finished difference Result 118 states and 139 transitions. [2018-11-10 11:08:27,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 11:08:27,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-10 11:08:27,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:27,418 INFO L225 Difference]: With dead ends: 118 [2018-11-10 11:08:27,418 INFO L226 Difference]: Without dead ends: 115 [2018-11-10 11:08:27,418 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:08:27,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-11-10 11:08:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-11-10 11:08:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-10 11:08:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2018-11-10 11:08:27,425 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 29 [2018-11-10 11:08:27,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:27,426 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2018-11-10 11:08:27,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 11:08:27,426 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2018-11-10 11:08:27,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-10 11:08:27,426 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:27,426 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:27,426 INFO L424 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:27,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:27,427 INFO L82 PathProgramCache]: Analyzing trace with hash 353144355, now seen corresponding path program 1 times [2018-11-10 11:08:27,427 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:27,427 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:27,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:27,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:27,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-10 11:08:27,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:08:27,558 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:27,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:08:27,561 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,567 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,572 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,581 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,581 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:24, output treesize:12 [2018-11-10 11:08:27,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-10 11:08:27,610 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 12 treesize of output 4 [2018-11-10 11:08:27,610 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,611 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,612 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:27,613 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-10 11:08:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:27,621 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:08:27,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:27,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 11:08:27,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 11:08:27,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 11:08:27,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:08:27,623 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand 8 states. [2018-11-10 11:08:28,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:28,251 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2018-11-10 11:08:28,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 11:08:28,254 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-10 11:08:28,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:28,255 INFO L225 Difference]: With dead ends: 151 [2018-11-10 11:08:28,255 INFO L226 Difference]: Without dead ends: 148 [2018-11-10 11:08:28,256 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-10 11:08:28,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-10 11:08:28,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2018-11-10 11:08:28,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-11-10 11:08:28,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2018-11-10 11:08:28,263 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 32 [2018-11-10 11:08:28,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:28,264 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2018-11-10 11:08:28,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 11:08:28,264 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2018-11-10 11:08:28,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-10 11:08:28,265 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:28,265 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:28,265 INFO L424 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:28,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:28,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1551790931, now seen corresponding path program 1 times [2018-11-10 11:08:28,266 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:28,266 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:28,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:28,341 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:28,360 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 [2018-11-10 11:08:28,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 11:08:28,362 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,364 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,373 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 [2018-11-10 11:08:28,374 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 11:08:28,375 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,376 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,382 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,382 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2018-11-10 11:08:28,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-10 11:08:28,430 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-10 11:08:28,430 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,432 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-10 11:08:28,440 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-10 11:08:28,441 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,442 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,446 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,446 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:40, output treesize:10 [2018-11-10 11:08:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:28,458 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:08:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:28,541 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:08:28,541 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:08:28,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:28,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:28,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-10 11:08:28,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:08:28,603 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:28,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:08:28,606 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,615 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,622 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,630 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,631 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:8 [2018-11-10 11:08:28,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-10 11:08:28,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 11:08:28,693 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,694 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,695 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:28,695 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2018-11-10 11:08:28,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:28,712 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:08:28,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-10 11:08:28,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 17 [2018-11-10 11:08:28,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-10 11:08:28,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-10 11:08:28,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2018-11-10 11:08:28,729 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 17 states. [2018-11-10 11:08:30,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:30,349 INFO L93 Difference]: Finished difference Result 274 states and 324 transitions. [2018-11-10 11:08:30,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-10 11:08:30,350 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 32 [2018-11-10 11:08:30,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:30,351 INFO L225 Difference]: With dead ends: 274 [2018-11-10 11:08:30,351 INFO L226 Difference]: Without dead ends: 183 [2018-11-10 11:08:30,352 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2018-11-10 11:08:30,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-11-10 11:08:30,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 155. [2018-11-10 11:08:30,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-11-10 11:08:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 178 transitions. [2018-11-10 11:08:30,360 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 178 transitions. Word has length 32 [2018-11-10 11:08:30,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:30,361 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 178 transitions. [2018-11-10 11:08:30,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-10 11:08:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 178 transitions. [2018-11-10 11:08:30,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 11:08:30,361 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:30,362 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:30,362 INFO L424 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:30,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:30,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2053304096, now seen corresponding path program 1 times [2018-11-10 11:08:30,362 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:30,362 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:30,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:30,468 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:30,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 11:08:30,471 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,475 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,476 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 11:08:30,490 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:30,491 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:30,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-10 11:08:30,492 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:08:30,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:30,514 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,517 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:08:30,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:30,532 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,534 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,542 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,542 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:39, output treesize:25 [2018-11-10 11:08:30,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-10 11:08:30,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:08:30,586 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:30,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:08:30,590 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,602 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,623 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-10 11:08:30,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:08:30,691 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:30,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:08:30,695 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,730 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,742 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,762 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:54, output treesize:41 [2018-11-10 11:08:30,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2018-11-10 11:08:30,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-10 11:08:30,832 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-11-10 11:08:30,846 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,851 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-10 11:08:30,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2018-11-10 11:08:30,867 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,871 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-10 11:08:30,872 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,881 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,883 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:30,884 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:68, output treesize:7 [2018-11-10 11:08:30,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:30,899 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:08:30,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:30,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 11:08:30,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 11:08:30,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 11:08:30,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:08:30,902 INFO L87 Difference]: Start difference. First operand 155 states and 178 transitions. Second operand 8 states. [2018-11-10 11:08:31,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:31,817 INFO L93 Difference]: Finished difference Result 175 states and 201 transitions. [2018-11-10 11:08:31,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 11:08:31,818 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-11-10 11:08:31,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:31,819 INFO L225 Difference]: With dead ends: 175 [2018-11-10 11:08:31,819 INFO L226 Difference]: Without dead ends: 172 [2018-11-10 11:08:31,820 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-10 11:08:31,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-11-10 11:08:31,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 158. [2018-11-10 11:08:31,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-11-10 11:08:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 180 transitions. [2018-11-10 11:08:31,827 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 180 transitions. Word has length 35 [2018-11-10 11:08:31,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:31,828 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 180 transitions. [2018-11-10 11:08:31,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 11:08:31,828 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 180 transitions. [2018-11-10 11:08:31,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-10 11:08:31,828 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:31,828 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:31,828 INFO L424 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:31,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:31,829 INFO L82 PathProgramCache]: Analyzing trace with hash 2089349840, now seen corresponding path program 1 times [2018-11-10 11:08:31,829 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:31,829 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:31,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:32,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:32,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 11:08:32,005 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,012 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,012 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 11:08:32,032 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:32,040 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:32,040 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 11 treesize of output 4 [2018-11-10 11:08:32,041 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:08:32,068 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:32,068 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,071 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:08:32,090 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:32,090 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,092 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,101 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,101 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:39, output treesize:25 [2018-11-10 11:08:32,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-10 11:08:32,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:08:32,139 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:32,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:08:32,143 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,154 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,168 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-10 11:08:32,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:08:32,219 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:32,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:08:32,228 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,236 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,245 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,265 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:54, output treesize:41 [2018-11-10 11:08:32,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2018-11-10 11:08:32,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2018-11-10 11:08:32,329 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:08:32,341 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,346 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-10 11:08:32,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:08:32,357 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2018-11-10 11:08:32,363 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,365 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:32,367 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:68, output treesize:7 [2018-11-10 11:08:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 11:08:32,384 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:08:32,386 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:32,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 11:08:32,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 11:08:32,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 11:08:32,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:08:32,387 INFO L87 Difference]: Start difference. First operand 158 states and 180 transitions. Second operand 8 states. [2018-11-10 11:08:33,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:33,309 INFO L93 Difference]: Finished difference Result 174 states and 198 transitions. [2018-11-10 11:08:33,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 11:08:33,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-11-10 11:08:33,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:33,310 INFO L225 Difference]: With dead ends: 174 [2018-11-10 11:08:33,310 INFO L226 Difference]: Without dead ends: 171 [2018-11-10 11:08:33,311 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-10 11:08:33,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-11-10 11:08:33,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 161. [2018-11-10 11:08:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-11-10 11:08:33,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 183 transitions. [2018-11-10 11:08:33,317 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 183 transitions. Word has length 41 [2018-11-10 11:08:33,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:33,318 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 183 transitions. [2018-11-10 11:08:33,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 11:08:33,318 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 183 transitions. [2018-11-10 11:08:33,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-10 11:08:33,318 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:33,318 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:33,319 INFO L424 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:33,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:33,319 INFO L82 PathProgramCache]: Analyzing trace with hash 634518420, now seen corresponding path program 1 times [2018-11-10 11:08:33,319 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:33,319 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:33,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:33,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:33,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:33,383 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:08:33,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:33,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 11:08:33,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 11:08:33,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 11:08:33,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:08:33,385 INFO L87 Difference]: Start difference. First operand 161 states and 183 transitions. Second operand 6 states. [2018-11-10 11:08:33,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:33,491 INFO L93 Difference]: Finished difference Result 189 states and 216 transitions. [2018-11-10 11:08:33,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 11:08:33,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-11-10 11:08:33,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:33,492 INFO L225 Difference]: With dead ends: 189 [2018-11-10 11:08:33,492 INFO L226 Difference]: Without dead ends: 186 [2018-11-10 11:08:33,493 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:08:33,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-11-10 11:08:33,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 168. [2018-11-10 11:08:33,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-11-10 11:08:33,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 191 transitions. [2018-11-10 11:08:33,500 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 191 transitions. Word has length 45 [2018-11-10 11:08:33,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:33,500 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 191 transitions. [2018-11-10 11:08:33,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 11:08:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 191 transitions. [2018-11-10 11:08:33,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 11:08:33,501 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:33,501 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:33,501 INFO L424 AbstractCegarLoop]: === Iteration 11 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:33,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:33,501 INFO L82 PathProgramCache]: Analyzing trace with hash 782045343, now seen corresponding path program 1 times [2018-11-10 11:08:33,501 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:33,502 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:33,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:33,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:33,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 11:08:33,614 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 11:08:33,615 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,616 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,624 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 [2018-11-10 11:08:33,627 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 [2018-11-10 11:08:33,627 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,629 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,634 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,635 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2018-11-10 11:08:33,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:08:33,722 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:08:33,722 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,724 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:08:33,731 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:08:33,732 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,733 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,736 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-10 11:08:33,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:33,753 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:08:33,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:33,875 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:08:33,875 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:08:33,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:33,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:33,917 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 [2018-11-10 11:08:33,918 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 10 treesize of output 9 [2018-11-10 11:08:33,918 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,920 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,928 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 [2018-11-10 11:08:33,929 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 [2018-11-10 11:08:33,930 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,931 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,936 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,936 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2018-11-10 11:08:33,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:08:33,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:08:33,975 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:08:33,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:08:33,983 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,984 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,987 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:33,987 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-10 11:08:33,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:33,991 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:08:34,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:34,026 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 11:08:34,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 9, 7] total 12 [2018-11-10 11:08:34,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 11:08:34,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 11:08:34,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=103, Unknown=1, NotChecked=0, Total=132 [2018-11-10 11:08:34,027 INFO L87 Difference]: Start difference. First operand 168 states and 191 transitions. Second operand 12 states. [2018-11-10 11:08:35,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:35,921 INFO L93 Difference]: Finished difference Result 250 states and 293 transitions. [2018-11-10 11:08:35,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 11:08:35,922 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2018-11-10 11:08:35,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:35,923 INFO L225 Difference]: With dead ends: 250 [2018-11-10 11:08:35,923 INFO L226 Difference]: Without dead ends: 247 [2018-11-10 11:08:35,923 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 176 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=137, Unknown=1, NotChecked=0, Total=182 [2018-11-10 11:08:35,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-11-10 11:08:35,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 178. [2018-11-10 11:08:35,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-10 11:08:35,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 202 transitions. [2018-11-10 11:08:35,932 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 202 transitions. Word has length 48 [2018-11-10 11:08:35,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:35,932 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 202 transitions. [2018-11-10 11:08:35,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 11:08:35,933 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 202 transitions. [2018-11-10 11:08:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-10 11:08:35,933 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:35,933 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:35,933 INFO L424 AbstractCegarLoop]: === Iteration 12 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:35,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:35,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1144522333, now seen corresponding path program 1 times [2018-11-10 11:08:35,934 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:35,934 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:35,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:36,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:36,064 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 [2018-11-10 11:08:36,066 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 [2018-11-10 11:08:36,067 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,068 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,074 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:14 [2018-11-10 11:08:36,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-10 11:08:36,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 11:08:36,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,106 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,107 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-10 11:08:36,119 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:36,119 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:08:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:36,191 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:08:36,191 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:08:36,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:36,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:36,233 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 [2018-11-10 11:08:36,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:36,235 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,237 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,251 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 [2018-11-10 11:08:36,253 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 8 treesize of output 7 [2018-11-10 11:08:36,253 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,256 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,263 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:23, output treesize:1 [2018-11-10 11:08:36,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-10 11:08:36,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 11:08:36,360 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,365 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-11-10 11:08:36,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-10 11:08:36,385 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,386 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-11-10 11:08:36,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-10 11:08:36,399 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,405 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-10 11:08:36,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 11:08:36,417 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,418 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:36,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:36,421 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:47, output treesize:9 [2018-11-10 11:08:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-10 11:08:36,442 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:08:36,482 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-10 11:08:36,499 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 11:08:36,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 5, 5] total 16 [2018-11-10 11:08:36,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-10 11:08:36,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-10 11:08:36,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-11-10 11:08:36,500 INFO L87 Difference]: Start difference. First operand 178 states and 202 transitions. Second operand 16 states. [2018-11-10 11:08:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:38,202 INFO L93 Difference]: Finished difference Result 283 states and 329 transitions. [2018-11-10 11:08:38,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-10 11:08:38,202 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 47 [2018-11-10 11:08:38,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:38,203 INFO L225 Difference]: With dead ends: 283 [2018-11-10 11:08:38,203 INFO L226 Difference]: Without dead ends: 206 [2018-11-10 11:08:38,204 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=653, Unknown=0, NotChecked=0, Total=812 [2018-11-10 11:08:38,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-11-10 11:08:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 165. [2018-11-10 11:08:38,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-11-10 11:08:38,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2018-11-10 11:08:38,219 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 47 [2018-11-10 11:08:38,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:38,220 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2018-11-10 11:08:38,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-10 11:08:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2018-11-10 11:08:38,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-10 11:08:38,221 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:38,221 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:38,221 INFO L424 AbstractCegarLoop]: === Iteration 13 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:38,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:38,221 INFO L82 PathProgramCache]: Analyzing trace with hash 2020394562, now seen corresponding path program 1 times [2018-11-10 11:08:38,222 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:38,222 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:38,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:38,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:38,346 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 [2018-11-10 11:08:38,348 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:38,348 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,351 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,361 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 [2018-11-10 11:08:38,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:38,363 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,365 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,371 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,371 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2018-11-10 11:08:38,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-10 11:08:38,452 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 11:08:38,453 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,457 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-10 11:08:38,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 11:08:38,476 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,481 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-11-10 11:08:38,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-10 11:08:38,494 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,499 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-11-10 11:08:38,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-10 11:08:38,508 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,509 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:38,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:08:38,511 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:47, output treesize:9 [2018-11-10 11:08:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:38,526 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:08:38,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:08:38,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-10 11:08:38,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 11:08:38,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 11:08:38,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-11-10 11:08:38,528 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand 11 states. [2018-11-10 11:08:39,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:08:39,625 INFO L93 Difference]: Finished difference Result 184 states and 208 transitions. [2018-11-10 11:08:39,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 11:08:39,626 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 51 [2018-11-10 11:08:39,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:08:39,626 INFO L225 Difference]: With dead ends: 184 [2018-11-10 11:08:39,627 INFO L226 Difference]: Without dead ends: 181 [2018-11-10 11:08:39,627 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2018-11-10 11:08:39,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-11-10 11:08:39,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 168. [2018-11-10 11:08:39,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-11-10 11:08:39,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 189 transitions. [2018-11-10 11:08:39,636 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 189 transitions. Word has length 51 [2018-11-10 11:08:39,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:08:39,637 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 189 transitions. [2018-11-10 11:08:39,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 11:08:39,637 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 189 transitions. [2018-11-10 11:08:39,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-10 11:08:39,637 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:08:39,638 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:08:39,638 INFO L424 AbstractCegarLoop]: === Iteration 14 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:08:39,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:08:39,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1495778763, now seen corresponding path program 1 times [2018-11-10 11:08:39,638 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:08:39,638 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:08:39,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:08:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:08:39,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:08:39,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 11:08:39,877 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:39,901 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:39,902 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-10 11:08:39,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-10 11:08:39,924 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:08:39,928 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:39,931 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:08:39,931 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:39,937 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:39,942 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:39,952 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:39,952 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:29, output treesize:17 [2018-11-10 11:08:39,963 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:39,964 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:39,964 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-10 11:08:39,964 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:39,973 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:39,973 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2018-11-10 11:08:39,989 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:39,990 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:39,990 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:08:39,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-10 11:08:39,991 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-10 11:08:40,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:08:40,024 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,032 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,053 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,053 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:46, output treesize:27 [2018-11-10 11:08:40,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 11:08:40,084 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 [2018-11-10 11:08:40,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,088 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,121 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-11-10 11:08:40,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:08:40,128 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:08:40,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:08:40,129 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,138 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,152 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,173 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,173 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:53, output treesize:59 [2018-11-10 11:08:40,253 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:08:40,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:08:40,257 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,259 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:08:40,273 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:51 [2018-11-10 11:08:40,310 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 37 [2018-11-10 11:08:40,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 11:08:40,312 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,320 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-10 11:08:40,321 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,322 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,323 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:08:40,323 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:52, output treesize:4 [2018-11-10 11:08:40,345 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:08:40,345 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:09:00,063 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 62 [2018-11-10 11:09:00,138 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:09:00,138 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:00,142 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 51 treesize of output 51 [2018-11-10 11:09:00,146 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:00,150 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 51 [2018-11-10 11:09:00,150 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:00,171 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:00,198 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:00,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 57 [2018-11-10 11:09:00,401 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2018-11-10 11:09:00,405 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:00,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 59 [2018-11-10 11:09:00,524 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:00,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-10 11:09:00,693 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:00,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2018-11-10 11:09:00,695 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:00,705 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:00,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-10 11:09:00,711 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:00,715 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2018-11-10 11:09:00,715 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:00,725 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:00,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-10 11:09:00,736 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:00,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 28 [2018-11-10 11:09:00,754 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:00,797 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:09:00,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2018-11-10 11:09:00,925 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:00,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-11-10 11:09:00,928 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:00,966 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:00,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-10 11:09:00,989 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:01,042 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:09:01,060 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:01,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-10 11:09:01,086 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:01,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 47 [2018-11-10 11:09:01,246 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-11-10 11:09:01,249 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:01,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 12 [2018-11-10 11:09:01,251 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,310 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:01,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-10 11:09:01,313 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,363 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:01,363 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:01,364 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:01,368 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2018-11-10 11:09:01,368 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,373 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:01,386 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-10 11:09:01,386 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:01,419 INFO L267 ElimStorePlain]: Start of recursive call 18: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:09:01,438 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:09:01,495 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:09:01,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:09:01,592 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 6 xjuncts. [2018-11-10 11:09:01,592 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 6 variables, input treesize:103, output treesize:133 [2018-11-10 11:09:01,722 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:09:01,725 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:09:01,725 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:09:01,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:09:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:09:01,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:09:01,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 11:09:01,785 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,790 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,790 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-10 11:09:01,797 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-10 11:09:01,800 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:09:01,804 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:01,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:09:01,808 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,814 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,820 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,831 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:29, output treesize:17 [2018-11-10 11:09:01,834 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:01,835 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:01,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-10 11:09:01,836 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,845 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,845 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2018-11-10 11:09:01,851 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:01,855 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:01,856 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:01,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-10 11:09:01,857 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-10 11:09:01,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:09:01,909 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,919 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,949 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:46, output treesize:27 [2018-11-10 11:09:01,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 10 [2018-11-10 11:09:01,976 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 [2018-11-10 11:09:01,976 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:01,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-11-10 11:09:02,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:09:02,027 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:02,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:09:02,028 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,036 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,046 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,078 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:53, output treesize:59 [2018-11-10 11:09:02,128 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:09:02,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:09:02,131 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,134 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,152 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:09:02,152 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:51 [2018-11-10 11:09:02,166 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 37 [2018-11-10 11:09:02,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 11:09:02,172 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,194 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-10 11:09:02,195 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,196 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,197 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:02,197 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:52, output treesize:4 [2018-11-10 11:09:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:09:02,205 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:09:06,802 WARN L832 $PredicateComparison]: unable to prove that (forall ((|v_main_write~$Pointer$_#ptr.offset_15| (_ BitVec 32)) (|v_main_#t~malloc39.base_7| (_ BitVec 32)) (|v_main_write~$Pointer$_#value.base_15| (_ BitVec 32)) (v_main_~node~1.base_12 (_ BitVec 32))) (or (not (= (_ bv0 32) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| v_main_~node~1.base_12 (store (select |c_#memory_$Pointer$.base| v_main_~node~1.base_12) |v_main_write~$Pointer$_#ptr.offset_15| |v_main_write~$Pointer$_#value.base_15|)))) (store .cse0 |v_main_#t~malloc39.base_7| (store (store (select .cse0 |v_main_#t~malloc39.base_7|) (_ bv0 32) v_main_~node~1.base_12) (_ bv4 32) c_main_~data~0.base))) c_main_~data~0.base) c_main_~data~0.offset))) (not (= (_ bv0 1) (select (store |c_#valid| v_main_~node~1.base_12 (_ bv1 1)) |v_main_#t~malloc39.base_7|))) (not (= (_ bv0 1) (select |c_#valid| v_main_~node~1.base_12))))) is different from false [2018-11-10 11:09:06,955 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2018-11-10 11:09:06,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 62 [2018-11-10 11:09:07,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2018-11-10 11:09:07,059 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 51 [2018-11-10 11:09:07,064 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:07,087 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:07,088 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:09:07,089 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:07,116 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 57 [2018-11-10 11:09:07,330 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2018-11-10 11:09:07,333 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 59 [2018-11-10 11:09:07,462 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:07,631 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-10 11:09:07,640 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 47 [2018-11-10 11:09:07,792 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-11-10 11:09:07,795 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-10 11:09:07,811 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:07,813 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,813 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,814 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2018-11-10 11:09:07,818 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:07,899 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-10 11:09:07,901 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:07,951 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:07,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 12 [2018-11-10 11:09:07,953 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:07,982 INFO L267 ElimStorePlain]: Start of recursive call 9: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:09:08,005 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:09:08,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2018-11-10 11:09:08,026 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:08,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-11-10 11:09:08,029 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:08,067 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:08,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-10 11:09:08,089 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:08,145 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:09:08,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-10 11:09:08,294 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:08,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2018-11-10 11:09:08,298 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:08,307 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:08,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-10 11:09:08,320 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 19 treesize of output 13 [2018-11-10 11:09:08,320 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:08,339 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:09:08,406 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:09:08,449 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:09:08,501 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 6 xjuncts. [2018-11-10 11:09:08,501 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 6 variables, input treesize:103, output treesize:133 [2018-11-10 11:09:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-11-10 11:09:08,592 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 11:09:08,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12] total 21 [2018-11-10 11:09:08,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-10 11:09:08,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-10 11:09:08,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=325, Unknown=9, NotChecked=36, Total=420 [2018-11-10 11:09:08,593 INFO L87 Difference]: Start difference. First operand 168 states and 189 transitions. Second operand 21 states. [2018-11-10 11:09:10,866 WARN L179 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 58 DAG size of output: 24 [2018-11-10 11:09:14,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:09:14,411 INFO L93 Difference]: Finished difference Result 209 states and 236 transitions. [2018-11-10 11:09:14,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 11:09:14,412 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 53 [2018-11-10 11:09:14,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:09:14,412 INFO L225 Difference]: With dead ends: 209 [2018-11-10 11:09:14,413 INFO L226 Difference]: Without dead ends: 206 [2018-11-10 11:09:14,413 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 190 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 27.2s TimeCoverageRelationStatistics Valid=116, Invalid=581, Unknown=9, NotChecked=50, Total=756 [2018-11-10 11:09:14,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-11-10 11:09:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 180. [2018-11-10 11:09:14,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-11-10 11:09:14,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 202 transitions. [2018-11-10 11:09:14,422 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 202 transitions. Word has length 53 [2018-11-10 11:09:14,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:09:14,422 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 202 transitions. [2018-11-10 11:09:14,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-10 11:09:14,422 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 202 transitions. [2018-11-10 11:09:14,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-10 11:09:14,423 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:09:14,423 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:09:14,423 INFO L424 AbstractCegarLoop]: === Iteration 15 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:09:14,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:09:14,424 INFO L82 PathProgramCache]: Analyzing trace with hash -409156523, now seen corresponding path program 1 times [2018-11-10 11:09:14,424 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:09:14,424 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:09:14,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:09:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:09:14,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:09:14,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 11:09:14,660 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,665 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-10 11:09:14,679 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-10 11:09:14,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:09:14,689 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:14,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:09:14,692 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,700 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,705 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,716 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,716 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:29, output treesize:17 [2018-11-10 11:09:14,727 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:14,728 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:14,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-10 11:09:14,728 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,738 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2018-11-10 11:09:14,756 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:14,757 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:14,757 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:14,758 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-10 11:09:14,758 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,790 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-10 11:09:14,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:09:14,794 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,801 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,822 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,823 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:46, output treesize:27 [2018-11-10 11:09:14,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-11-10 11:09:14,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:09:14,872 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:14,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:09:14,873 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,881 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,890 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 11:09:14,917 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 [2018-11-10 11:09:14,918 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,922 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,944 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:14,944 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:53, output treesize:59 [2018-11-10 11:09:15,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 11:09:15,046 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:09:15,046 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:15,050 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:15,064 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:09:15,064 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:51 [2018-11-10 11:09:15,104 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 37 [2018-11-10 11:09:15,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 11:09:15,107 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:15,117 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-10 11:09:15,117 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:15,118 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:15,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:15,120 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:52, output treesize:4 [2018-11-10 11:09:15,144 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:09:15,144 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:09:25,601 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2018-11-10 11:09:25,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 62 [2018-11-10 11:09:25,692 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:09:25,692 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:25,696 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 51 treesize of output 51 [2018-11-10 11:09:25,700 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:25,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 51 [2018-11-10 11:09:25,705 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:25,736 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:25,769 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:25,799 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 57 [2018-11-10 11:09:25,966 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2018-11-10 11:09:25,969 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,046 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 59 [2018-11-10 11:09:26,047 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:26,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-10 11:09:26,237 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,242 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2018-11-10 11:09:26,242 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:26,251 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:26,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-10 11:09:26,258 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 28 [2018-11-10 11:09:26,283 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:26,333 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:09:26,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-10 11:09:26,338 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2018-11-10 11:09:26,341 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:26,351 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:26,462 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-10 11:09:26,471 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 47 [2018-11-10 11:09:26,650 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-11-10 11:09:26,652 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,655 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-10 11:09:26,655 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:26,721 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 12 [2018-11-10 11:09:26,723 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:26,773 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,774 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,774 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,778 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2018-11-10 11:09:26,779 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:26,781 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-10 11:09:26,796 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:26,831 INFO L267 ElimStorePlain]: Start of recursive call 15: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:09:26,849 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:09:26,870 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2018-11-10 11:09:26,875 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-11-10 11:09:26,877 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:26,912 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:26,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-10 11:09:26,937 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:26,993 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:09:27,052 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:09:27,099 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:09:27,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 6 xjuncts. [2018-11-10 11:09:27,154 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 6 variables, input treesize:103, output treesize:133 [2018-11-10 11:09:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:09:27,267 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:09:27,267 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:09:27,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:09:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:09:27,322 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:09:27,354 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 11:09:27,355 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,360 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,360 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-10 11:09:27,402 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 [2018-11-10 11:09:27,404 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 [2018-11-10 11:09:27,404 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,406 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,417 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 [2018-11-10 11:09:27,419 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 [2018-11-10 11:09:27,419 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,421 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,429 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:35, output treesize:27 [2018-11-10 11:09:27,488 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:27,489 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:27,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-10 11:09:27,489 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,500 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,500 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:30 [2018-11-10 11:09:27,571 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-10 11:09:27,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:09:27,575 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,584 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,615 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-10 11:09:27,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:09:27,618 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,626 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,646 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,646 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:55, output treesize:33 [2018-11-10 11:09:27,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 36 [2018-11-10 11:09:27,745 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 25 treesize of output 27 [2018-11-10 11:09:27,750 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:27,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:09:27,754 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,772 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,853 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 36 [2018-11-10 11:09:27,933 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 27 [2018-11-10 11:09:27,938 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:27,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:09:27,939 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:27,952 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:28,000 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:28,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 28 [2018-11-10 11:09:28,004 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:28,005 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:28,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 37 [2018-11-10 11:09:28,008 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:28,018 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:28,037 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:09:28,079 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:09:28,079 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:58, output treesize:119 [2018-11-10 11:09:28,636 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 64 [2018-11-10 11:09:28,639 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:28,639 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2018-11-10 11:09:28,640 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:28,657 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:28,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 82 [2018-11-10 11:09:28,726 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:28,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2018-11-10 11:09:28,727 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:28,796 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:28,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-10 11:09:28,839 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:154, output treesize:102 [2018-11-10 11:09:29,157 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 43 treesize of output 31 [2018-11-10 11:09:29,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2018-11-10 11:09:29,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:29,166 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:29,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:29,171 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:4 [2018-11-10 11:09:29,181 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:09:29,181 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:09:34,591 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-11-10 11:09:46,414 WARN L179 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-11-10 11:09:46,433 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 161 treesize of output 92 [2018-11-10 11:09:46,439 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 11 treesize of output 10 [2018-11-10 11:09:46,439 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:46,630 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 76 [2018-11-10 11:09:46,974 WARN L179 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-11-10 11:09:47,121 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 64 treesize of output 72 [2018-11-10 11:09:47,121 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:47,374 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 57 treesize of output 65 [2018-11-10 11:09:47,374 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:47,435 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 42 treesize of output 50 [2018-11-10 11:09:47,436 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:47,499 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 55 treesize of output 63 [2018-11-10 11:09:47,499 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:47,977 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 43 treesize of output 42 [2018-11-10 11:09:47,977 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:47,981 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 56 treesize of output 55 [2018-11-10 11:09:47,981 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:48,354 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2018-11-10 11:09:48,378 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 34 treesize of output 41 [2018-11-10 11:09:48,508 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-11-10 11:09:48,512 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:48,513 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:48,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 17 [2018-11-10 11:09:48,514 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:48,587 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:48,590 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:48,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 28 [2018-11-10 11:09:48,598 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:48,601 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:48,604 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 17 [2018-11-10 11:09:48,604 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:48,642 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:09:48,679 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:09:48,679 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:48,702 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:09:48,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2018-11-10 11:09:48,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 9 [2018-11-10 11:09:48,713 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:48,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:09:48,730 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:48,738 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:49,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-11-10 11:09:49,118 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 5 case distinctions, treesize of input 40 treesize of output 62 [2018-11-10 11:09:50,146 WARN L179 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 149 DAG size of output: 127 [2018-11-10 11:09:50,152 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:50,152 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:50,154 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:50,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 35 [2018-11-10 11:09:50,162 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:50,626 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:50,629 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:50,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 36 [2018-11-10 11:09:50,636 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:50,899 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:50,899 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:50,900 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 25 treesize of output 19 [2018-11-10 11:09:50,900 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:51,306 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:51,306 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:51,316 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:51,317 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:51,318 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:51,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 43 [2018-11-10 11:09:51,338 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:51,576 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:51,589 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:51,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 54 [2018-11-10 11:09:51,628 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 16 xjuncts. [2018-11-10 11:09:51,860 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:51,860 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:51,861 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:51,864 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2018-11-10 11:09:51,864 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:51,982 INFO L267 ElimStorePlain]: Start of recursive call 21: 7 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-11-10 11:09:52,085 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:09:52,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2018-11-10 11:09:52,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 13 [2018-11-10 11:09:52,094 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:52,110 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:52,114 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 50 [2018-11-10 11:09:52,148 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 32 treesize of output 37 [2018-11-10 11:09:52,234 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:09:52,235 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:52,236 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:09:52,236 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:52,240 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:52,240 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2018-11-10 11:09:52,241 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:52,243 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:52,245 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:52,245 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2018-11-10 11:09:52,245 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:52,319 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:52,326 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:52,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 30 [2018-11-10 11:09:52,339 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:52,370 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:09:52,393 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:09:52,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-11-10 11:09:52,430 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 27 [2018-11-10 11:09:52,430 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:52,491 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:09:52,915 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 12 xjuncts. [2018-11-10 11:09:53,081 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 12 xjuncts. [2018-11-10 11:09:54,045 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 161 treesize of output 132 [2018-11-10 11:09:54,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-11-10 11:09:54,056 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:54,184 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 57 [2018-11-10 11:09:54,310 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-11-10 11:09:54,315 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 35 treesize of output 34 [2018-11-10 11:09:54,315 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:54,320 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 41 [2018-11-10 11:09:54,320 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:54,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-11-10 11:09:54,326 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:54,825 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 41 treesize of output 49 [2018-11-10 11:09:54,826 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:55,075 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 34 treesize of output 42 [2018-11-10 11:09:55,076 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:55,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-10 11:09:55,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 3 [2018-11-10 11:09:55,651 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:55,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:09:55,682 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:55,707 INFO L267 ElimStorePlain]: Start of recursive call 47: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:09:55,719 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 38 [2018-11-10 11:09:55,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2018-11-10 11:09:55,787 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:55,788 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 14 [2018-11-10 11:09:55,788 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:55,831 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 22 treesize of output 14 [2018-11-10 11:09:55,831 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:55,857 INFO L267 ElimStorePlain]: Start of recursive call 51: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:09:55,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:09:55,948 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:56,011 INFO L267 ElimStorePlain]: Start of recursive call 50: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:09:56,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 41 [2018-11-10 11:09:56,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 39 [2018-11-10 11:09:56,778 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:56,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-11-10 11:09:56,779 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:56,901 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 29 treesize of output 21 [2018-11-10 11:09:56,901 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 2 xjuncts. [2018-11-10 11:09:56,989 INFO L267 ElimStorePlain]: Start of recursive call 56: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:09:57,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 57 [2018-11-10 11:09:57,857 WARN L179 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2018-11-10 11:09:57,864 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:57,865 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 30 treesize of output 26 [2018-11-10 11:09:57,865 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-10 11:09:58,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 31 [2018-11-10 11:09:58,682 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 4 xjuncts. [2018-11-10 11:09:59,556 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:09:59,558 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:09:59,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2018-11-10 11:09:59,564 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:00,135 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 3 case distinctions, treesize of input 32 treesize of output 36 [2018-11-10 11:10:00,135 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 8 xjuncts. [2018-11-10 11:10:00,601 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 31 treesize of output 23 [2018-11-10 11:10:00,601 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 2 xjuncts. [2018-11-10 11:10:01,263 INFO L267 ElimStorePlain]: Start of recursive call 59: 7 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:10:01,527 INFO L267 ElimStorePlain]: Start of recursive call 55: 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:10:01,555 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 34 treesize of output 34 [2018-11-10 11:10:01,560 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2018-11-10 11:10:01,560 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:01,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 17 [2018-11-10 11:10:01,659 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 2 xjuncts. [2018-11-10 11:10:01,766 INFO L267 ElimStorePlain]: Start of recursive call 65: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:02,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 38 [2018-11-10 11:10:02,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 28 [2018-11-10 11:10:02,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 21 [2018-11-10 11:10:02,356 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 2 xjuncts. [2018-11-10 11:10:02,400 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:02,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-11-10 11:10:02,401 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:02,423 INFO L267 ElimStorePlain]: Start of recursive call 69: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:10:02,503 INFO L267 ElimStorePlain]: Start of recursive call 68: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:10:02,521 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-11-10 11:10:02,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2018-11-10 11:10:02,529 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:02,556 INFO L267 ElimStorePlain]: Start of recursive call 72: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:02,851 INFO L267 ElimStorePlain]: Start of recursive call 41: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-11-10 11:10:03,091 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-11-10 11:10:03,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 69 [2018-11-10 11:10:03,963 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 11 treesize of output 10 [2018-11-10 11:10:03,963 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:04,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 56 [2018-11-10 11:10:04,165 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-11-10 11:10:04,221 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 40 treesize of output 48 [2018-11-10 11:10:04,222 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 2 xjuncts. [2018-11-10 11:10:04,222 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:10:04,222 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:04,315 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 37 treesize of output 36 [2018-11-10 11:10:04,315 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:04,402 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 36 treesize of output 36 [2018-11-10 11:10:04,405 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:04,407 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 24 treesize of output 27 [2018-11-10 11:10:04,430 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,431 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,431 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2018-11-10 11:10:04,431 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:04,437 INFO L267 ElimStorePlain]: Start of recursive call 81: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:04,457 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:04,474 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 3 case distinctions, treesize of input 27 treesize of output 47 [2018-11-10 11:10:04,605 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-11-10 11:10:04,609 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,612 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2018-11-10 11:10:04,617 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 2 xjuncts. [2018-11-10 11:10:04,669 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,669 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,670 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 25 treesize of output 19 [2018-11-10 11:10:04,670 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:04,715 INFO L267 ElimStorePlain]: Start of recursive call 83: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:04,731 INFO L267 ElimStorePlain]: Start of recursive call 80: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:10:04,801 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 23 treesize of output 27 [2018-11-10 11:10:04,821 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 19 treesize of output 27 [2018-11-10 11:10:04,866 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,870 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,878 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 2 case distinctions, treesize of input 22 treesize of output 26 [2018-11-10 11:10:04,878 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 4 xjuncts. [2018-11-10 11:10:04,880 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:10:04,880 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:04,925 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,925 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2018-11-10 11:10:04,926 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:04,942 INFO L267 ElimStorePlain]: Start of recursive call 87: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:04,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-11-10 11:10:04,982 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:10:04,982 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:04,985 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,985 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:04,986 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 16 treesize of output 10 [2018-11-10 11:10:04,986 INFO L267 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:04,996 INFO L267 ElimStorePlain]: Start of recursive call 91: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,009 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 10 treesize of output 3 [2018-11-10 11:10:05,009 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,016 INFO L267 ElimStorePlain]: Start of recursive call 86: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:05,029 INFO L267 ElimStorePlain]: Start of recursive call 76: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:05,045 INFO L267 ElimStorePlain]: Start of recursive call 74: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:05,054 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 101 treesize of output 72 [2018-11-10 11:10:05,059 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 11 treesize of output 10 [2018-11-10 11:10:05,060 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,114 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2018-11-10 11:10:05,161 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 15 [2018-11-10 11:10:05,162 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 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 13 [2018-11-10 11:10:05,180 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:05,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-10 11:10:05,182 INFO L267 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,184 INFO L267 ElimStorePlain]: Start of recursive call 99: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,187 INFO L267 ElimStorePlain]: Start of recursive call 97: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,200 INFO L267 ElimStorePlain]: Start of recursive call 95: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,214 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 94 treesize of output 65 [2018-11-10 11:10:05,218 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 11 treesize of output 10 [2018-11-10 11:10:05,218 INFO L267 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,268 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 46 treesize of output 42 [2018-11-10 11:10:05,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 11:10:05,309 INFO L267 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2018-11-10 11:10:05,341 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:05,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-10 11:10:05,344 INFO L267 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:10:05,353 INFO L267 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,355 INFO L267 ElimStorePlain]: Start of recursive call 105: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,356 INFO L267 ElimStorePlain]: Start of recursive call 103: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,365 INFO L267 ElimStorePlain]: Start of recursive call 101: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,376 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 96 treesize of output 67 [2018-11-10 11:10:05,381 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 11 treesize of output 10 [2018-11-10 11:10:05,381 INFO L267 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 56 [2018-11-10 11:10:05,638 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-11-10 11:10:05,639 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:10:05,639 INFO L267 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,643 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 34 treesize of output 33 [2018-11-10 11:10:05,643 INFO L267 ElimStorePlain]: Start of recursive call 112: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,733 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 30 treesize of output 36 [2018-11-10 11:10:05,734 INFO L267 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-11-10 11:10:05,795 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:05,798 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-10 11:10:05,798 INFO L267 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,809 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:10:05,809 INFO L267 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,812 INFO L267 ElimStorePlain]: Start of recursive call 114: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,864 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 27 treesize of output 29 [2018-11-10 11:10:05,868 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 24 treesize of output 18 [2018-11-10 11:10:05,868 INFO L267 ElimStorePlain]: Start of recursive call 118: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,902 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 9 [2018-11-10 11:10:05,902 INFO L267 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:05,930 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:05,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 19 [2018-11-10 11:10:05,941 INFO L267 ElimStorePlain]: Start of recursive call 120: End of recursive call: and 2 xjuncts. [2018-11-10 11:10:05,966 INFO L267 ElimStorePlain]: Start of recursive call 117: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:05,986 INFO L267 ElimStorePlain]: Start of recursive call 110: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:06,006 INFO L267 ElimStorePlain]: Start of recursive call 108: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:06,013 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 100 treesize of output 71 [2018-11-10 11:10:06,016 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 11 treesize of output 10 [2018-11-10 11:10:06,017 INFO L267 ElimStorePlain]: Start of recursive call 122: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2018-11-10 11:10:06,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 11:10:06,093 INFO L267 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 30 [2018-11-10 11:10:06,123 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:06,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 29 [2018-11-10 11:10:06,151 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:06,152 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:06,152 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:06,152 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:06,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-11-10 11:10:06,158 INFO L267 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,163 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:06,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2018-11-10 11:10:06,165 INFO L267 ElimStorePlain]: Start of recursive call 128: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,185 INFO L267 ElimStorePlain]: Start of recursive call 126: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:10:06,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:10:06,205 INFO L267 ElimStorePlain]: Start of recursive call 129: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,215 INFO L267 ElimStorePlain]: Start of recursive call 125: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:10:06,225 INFO L267 ElimStorePlain]: Start of recursive call 123: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:10:06,245 INFO L267 ElimStorePlain]: Start of recursive call 121: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:10:06,251 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 105 treesize of output 76 [2018-11-10 11:10:06,257 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 11 treesize of output 10 [2018-11-10 11:10:06,257 INFO L267 ElimStorePlain]: Start of recursive call 131: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,299 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 41 [2018-11-10 11:10:06,347 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 18 treesize of output 15 [2018-11-10 11:10:06,347 INFO L267 ElimStorePlain]: Start of recursive call 133: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-10 11:10:06,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2018-11-10 11:10:06,393 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:10:06,393 INFO L267 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,396 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:06,396 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:06,400 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:06,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-11-10 11:10:06,401 INFO L267 ElimStorePlain]: Start of recursive call 137: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,410 INFO L267 ElimStorePlain]: Start of recursive call 135: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,415 INFO L267 ElimStorePlain]: Start of recursive call 134: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,421 INFO L267 ElimStorePlain]: Start of recursive call 132: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,440 INFO L267 ElimStorePlain]: Start of recursive call 130: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 69 [2018-11-10 11:10:06,459 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 11 treesize of output 10 [2018-11-10 11:10:06,459 INFO L267 ElimStorePlain]: Start of recursive call 139: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,571 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 56 [2018-11-10 11:10:06,716 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-11-10 11:10:06,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-11-10 11:10:06,720 INFO L267 ElimStorePlain]: Start of recursive call 141: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,723 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 34 treesize of output 33 [2018-11-10 11:10:06,723 INFO L267 ElimStorePlain]: Start of recursive call 142: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,884 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 39 [2018-11-10 11:10:06,884 INFO L267 ElimStorePlain]: Start of recursive call 143: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:06,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 46 [2018-11-10 11:10:06,891 INFO L267 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:07,068 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 33 treesize of output 33 [2018-11-10 11:10:07,071 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,074 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 21 treesize of output 12 [2018-11-10 11:10:07,074 INFO L267 ElimStorePlain]: Start of recursive call 146: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:07,106 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,117 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2018-11-10 11:10:07,117 INFO L267 ElimStorePlain]: Start of recursive call 147: End of recursive call: and 2 xjuncts. [2018-11-10 11:10:07,143 INFO L267 ElimStorePlain]: Start of recursive call 145: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:07,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 40 [2018-11-10 11:10:07,168 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,171 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 28 treesize of output 36 [2018-11-10 11:10:07,208 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2018-11-10 11:10:07,210 INFO L267 ElimStorePlain]: Start of recursive call 150: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:07,213 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,214 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,214 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,217 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-11-10 11:10:07,219 INFO L267 ElimStorePlain]: Start of recursive call 151: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:07,241 INFO L267 ElimStorePlain]: Start of recursive call 149: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:10:07,289 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,319 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2018-11-10 11:10:07,476 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2018-11-10 11:10:07,479 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,479 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,480 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,482 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2018-11-10 11:10:07,485 INFO L267 ElimStorePlain]: Start of recursive call 153: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:07,487 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,489 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 36 treesize of output 27 [2018-11-10 11:10:07,489 INFO L267 ElimStorePlain]: Start of recursive call 154: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:07,595 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,596 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,596 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,605 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 45 [2018-11-10 11:10:07,621 INFO L267 ElimStorePlain]: Start of recursive call 155: End of recursive call: and 4 xjuncts. [2018-11-10 11:10:07,625 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:07,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 31 [2018-11-10 11:10:07,635 INFO L267 ElimStorePlain]: Start of recursive call 156: End of recursive call: and 2 xjuncts. [2018-11-10 11:10:07,697 INFO L267 ElimStorePlain]: Start of recursive call 152: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:10:07,737 INFO L267 ElimStorePlain]: Start of recursive call 148: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 11:10:07,937 INFO L267 ElimStorePlain]: Start of recursive call 140: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-11-10 11:10:07,995 INFO L267 ElimStorePlain]: Start of recursive call 138: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 7 xjuncts. [2018-11-10 11:10:08,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 3 dim-2 vars, End of recursive call: 14 dim-0 vars, and 17 xjuncts. [2018-11-10 11:10:08,547 INFO L202 ElimStorePlain]: Needed 156 recursive calls to eliminate 13 variables, input treesize:323, output treesize:304 [2018-11-10 11:10:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:10:09,012 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 11:10:09,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 14, 14] total 40 [2018-11-10 11:10:09,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-11-10 11:10:09,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-11-10 11:10:09,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1429, Unknown=11, NotChecked=0, Total=1560 [2018-11-10 11:10:09,013 INFO L87 Difference]: Start difference. First operand 180 states and 202 transitions. Second operand 40 states. [2018-11-10 11:10:10,930 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 67 [2018-11-10 11:10:12,499 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 67 [2018-11-10 11:10:12,877 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-11-10 11:10:13,886 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 61 [2018-11-10 11:10:15,283 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2018-11-10 11:10:16,177 WARN L179 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-11-10 11:10:16,754 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2018-11-10 11:10:17,359 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 67 [2018-11-10 11:10:19,540 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 70 [2018-11-10 11:10:21,790 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 71 [2018-11-10 11:10:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:10:22,589 INFO L93 Difference]: Finished difference Result 350 states and 400 transitions. [2018-11-10 11:10:22,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-10 11:10:22,591 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 53 [2018-11-10 11:10:22,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:10:22,592 INFO L225 Difference]: With dead ends: 350 [2018-11-10 11:10:22,592 INFO L226 Difference]: Without dead ends: 272 [2018-11-10 11:10:22,594 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 35.4s TimeCoverageRelationStatistics Valid=401, Invalid=3128, Unknown=11, NotChecked=0, Total=3540 [2018-11-10 11:10:22,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-11-10 11:10:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 246. [2018-11-10 11:10:22,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-11-10 11:10:22,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 272 transitions. [2018-11-10 11:10:22,609 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 272 transitions. Word has length 53 [2018-11-10 11:10:22,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:10:22,610 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 272 transitions. [2018-11-10 11:10:22,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-11-10 11:10:22,610 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 272 transitions. [2018-11-10 11:10:22,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-10 11:10:22,611 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:10:22,611 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:10:22,611 INFO L424 AbstractCegarLoop]: === Iteration 16 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:10:22,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:10:22,611 INFO L82 PathProgramCache]: Analyzing trace with hash -427631561, now seen corresponding path program 1 times [2018-11-10 11:10:22,611 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:10:22,612 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:10:22,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:10:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:10:22,676 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:10:22,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:10:22,697 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:10:22,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:10:22,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 11:10:22,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 11:10:22,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 11:10:22,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:10:22,700 INFO L87 Difference]: Start difference. First operand 246 states and 272 transitions. Second operand 6 states. [2018-11-10 11:10:22,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:10:22,954 INFO L93 Difference]: Finished difference Result 313 states and 357 transitions. [2018-11-10 11:10:22,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 11:10:22,955 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-11-10 11:10:22,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:10:22,956 INFO L225 Difference]: With dead ends: 313 [2018-11-10 11:10:22,956 INFO L226 Difference]: Without dead ends: 259 [2018-11-10 11:10:22,956 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:10:22,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-11-10 11:10:22,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 252. [2018-11-10 11:10:22,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-11-10 11:10:22,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 280 transitions. [2018-11-10 11:10:22,976 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 280 transitions. Word has length 56 [2018-11-10 11:10:22,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:10:22,976 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 280 transitions. [2018-11-10 11:10:22,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 11:10:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 280 transitions. [2018-11-10 11:10:22,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 11:10:22,977 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:10:22,977 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:10:22,977 INFO L424 AbstractCegarLoop]: === Iteration 17 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:10:22,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:10:22,977 INFO L82 PathProgramCache]: Analyzing trace with hash -971865271, now seen corresponding path program 1 times [2018-11-10 11:10:22,978 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:10:22,978 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:10:23,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:10:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:10:23,059 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:10:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 11:10:23,188 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:10:23,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:10:23,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 11:10:23,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 11:10:23,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 11:10:23,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-10 11:10:23,192 INFO L87 Difference]: Start difference. First operand 252 states and 280 transitions. Second operand 10 states. [2018-11-10 11:10:23,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:10:23,977 INFO L93 Difference]: Finished difference Result 295 states and 338 transitions. [2018-11-10 11:10:23,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 11:10:23,979 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-11-10 11:10:23,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:10:23,980 INFO L225 Difference]: With dead ends: 295 [2018-11-10 11:10:23,980 INFO L226 Difference]: Without dead ends: 292 [2018-11-10 11:10:23,980 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-11-10 11:10:23,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-11-10 11:10:23,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 265. [2018-11-10 11:10:23,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-11-10 11:10:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 301 transitions. [2018-11-10 11:10:23,996 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 301 transitions. Word has length 57 [2018-11-10 11:10:23,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:10:23,996 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 301 transitions. [2018-11-10 11:10:23,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 11:10:23,996 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 301 transitions. [2018-11-10 11:10:23,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 11:10:23,997 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:10:23,997 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:10:23,997 INFO L424 AbstractCegarLoop]: === Iteration 18 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:10:23,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:10:23,998 INFO L82 PathProgramCache]: Analyzing trace with hash -908248625, now seen corresponding path program 1 times [2018-11-10 11:10:23,998 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:10:23,998 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 24 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:10:24,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:10:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:10:24,132 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:10:24,146 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 [2018-11-10 11:10:24,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:10:24,148 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,151 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,170 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 [2018-11-10 11:10:24,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:10:24,174 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,177 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,184 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,185 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2018-11-10 11:10:24,376 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 61 treesize of output 53 [2018-11-10 11:10:24,378 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 41 [2018-11-10 11:10:24,378 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:10:24,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 34 [2018-11-10 11:10:24,402 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 29 [2018-11-10 11:10:24,427 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:10:24,446 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 11:10:24,474 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2018-11-10 11:10:24,476 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 20 treesize of output 13 [2018-11-10 11:10:24,476 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 7 [2018-11-10 11:10:24,491 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,499 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,502 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 34 treesize of output 25 [2018-11-10 11:10:24,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:10:24,504 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2018-11-10 11:10:24,511 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,513 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,516 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:24,516 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:61, output treesize:7 [2018-11-10 11:10:24,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:10:24,538 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:10:24,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:10:24,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-10 11:10:24,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 11:10:24,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 11:10:24,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-11-10 11:10:24,540 INFO L87 Difference]: Start difference. First operand 265 states and 301 transitions. Second operand 12 states. [2018-11-10 11:10:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:10:25,998 INFO L93 Difference]: Finished difference Result 285 states and 324 transitions. [2018-11-10 11:10:25,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 11:10:25,998 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2018-11-10 11:10:25,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:10:25,999 INFO L225 Difference]: With dead ends: 285 [2018-11-10 11:10:25,999 INFO L226 Difference]: Without dead ends: 280 [2018-11-10 11:10:26,000 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=282, Unknown=2, NotChecked=0, Total=342 [2018-11-10 11:10:26,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2018-11-10 11:10:26,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 269. [2018-11-10 11:10:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-11-10 11:10:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 305 transitions. [2018-11-10 11:10:26,018 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 305 transitions. Word has length 57 [2018-11-10 11:10:26,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:10:26,019 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 305 transitions. [2018-11-10 11:10:26,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 11:10:26,019 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 305 transitions. [2018-11-10 11:10:26,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-10 11:10:26,019 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:10:26,020 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:10:26,020 INFO L424 AbstractCegarLoop]: === Iteration 19 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:10:26,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:10:26,020 INFO L82 PathProgramCache]: Analyzing trace with hash 364164728, now seen corresponding path program 1 times [2018-11-10 11:10:26,020 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:10:26,020 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed749ec7-da1e-4720-a8f9-1548c374bd0c/bin-2019/utaipan/cvc4nyu Starting monitored process 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:10:26,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:10:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:10:26,275 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:10:26,277 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 11:10:26,277 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,287 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,288 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 11:10:26,297 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:26,298 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:26,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-10 11:10:26,299 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:10:26,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:10:26,332 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,334 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,350 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 11:10:26,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:10:26,352 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,354 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,366 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:45, output treesize:36 [2018-11-10 11:10:26,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-10 11:10:26,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:10:26,405 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:26,409 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:10:26,409 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,418 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,429 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,469 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2018-11-10 11:10:26,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:10:26,476 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:26,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:10:26,479 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,487 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,498 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,524 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,524 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:65, output treesize:56 [2018-11-10 11:10:26,545 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:26,546 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:26,547 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:26,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-10 11:10:26,548 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,570 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,570 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:75 [2018-11-10 11:10:26,608 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:26,610 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:26,611 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:26,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2018-11-10 11:10:26,612 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 47 [2018-11-10 11:10:26,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:10:26,711 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,728 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2018-11-10 11:10:26,801 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 11:10:26,802 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,824 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,874 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:105, output treesize:72 [2018-11-10 11:10:26,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 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 52 [2018-11-10 11:10:26,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-10 11:10:26,960 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:26,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-10 11:10:26,964 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:26,976 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,001 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,073 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:27,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 81 [2018-11-10 11:10:27,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-10 11:10:27,101 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:27,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2018-11-10 11:10:27,103 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,113 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,133 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,180 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,180 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:101, output treesize:134 [2018-11-10 11:10:27,412 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:27,413 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:27,414 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:27,414 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:10:27,422 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 135 [2018-11-10 11:10:27,427 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 89 treesize of output 53 [2018-11-10 11:10:27,427 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,443 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 30 treesize of output 21 [2018-11-10 11:10:27,444 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:10:27,453 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,458 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,481 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:27,482 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:10:27,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 67 [2018-11-10 11:10:27,498 INFO L477 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2018-11-10 11:10:27,498 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-10 11:10:27,509 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 11:10:27,515 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,519 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,522 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:10:27,523 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:175, output treesize:7 [2018-11-10 11:10:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:10:27,571 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:10:29,004 WARN L179 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 38 [2018-11-10 11:10:52,826 WARN L179 SmtUtils]: Spent 7.64 s on a formula simplification that was a NOOP. DAG size: 70 [2018-11-10 11:11:08,767 WARN L179 SmtUtils]: Spent 5.68 s on a formula simplification that was a NOOP. DAG size: 82 [2018-11-10 11:11:10,779 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((|v_main_write~$Pointer$_#value.base_32| (_ BitVec 32)) (|v_main_write~$Pointer$_#ptr.offset_31| (_ BitVec 32)) (|v_main_write~$Pointer$_#value.base_31| (_ BitVec 32)) (v_subst_1 (_ BitVec 32)) (v_prenex_105 (_ BitVec 32)) (|v_main_write~$Pointer$_#value.offset_32| (_ BitVec 32)) (|v_main_write~$Pointer$_#value.offset_31| (_ BitVec 32)) (|v_main_#Ultimate.alloc_#res.base_28| (_ BitVec 32))) (or (not (= (select (store |c_#valid| v_prenex_105 (_ bv1 1)) |v_main_#Ultimate.alloc_#res.base_28|) (_ bv0 1))) (= (let ((.cse3 (bvadd c_main_~item~0.offset (_ bv4 32)))) (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#memory_$Pointer$.base| c_main_~item~0.base (store (store (select |c_#memory_$Pointer$.base| c_main_~item~0.base) c_main_~item~0.offset c_main_~node~1.base) .cse3 |v_main_write~$Pointer$_#value.base_32|)))) (store .cse2 v_prenex_105 (store (select .cse2 v_prenex_105) |v_main_write~$Pointer$_#ptr.offset_31| |v_main_write~$Pointer$_#value.base_31|))))) (store .cse1 |v_main_#Ultimate.alloc_#res.base_28| (store (store (select .cse1 |v_main_#Ultimate.alloc_#res.base_28|) (_ bv0 32) v_prenex_105) (_ bv4 32) c_main_~item~0.base))))) (select .cse0 (select (select .cse0 c_main_~item~0.base) c_main_~item~0.offset))) (select (select (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$.offset| c_main_~item~0.base (store (store (select |c_#memory_$Pointer$.offset| c_main_~item~0.base) c_main_~item~0.offset c_main_~node~1.offset) .cse3 |v_main_write~$Pointer$_#value.offset_32|)))) (store .cse5 v_prenex_105 (store (select .cse5 v_prenex_105) |v_main_write~$Pointer$_#ptr.offset_31| |v_main_write~$Pointer$_#value.offset_31|))))) (store .cse4 |v_main_#Ultimate.alloc_#res.base_28| (store (store (select .cse4 |v_main_#Ultimate.alloc_#res.base_28|) (_ bv0 32) v_subst_1) (_ bv4 32) c_main_~item~0.offset))) c_main_~item~0.base) c_main_~item~0.offset))) (_ bv0 32)) (not (= (select |c_#valid| v_prenex_105) (_ bv0 1))))) (forall ((v_prenex_107 (_ BitVec 32)) (v_prenex_106 (_ BitVec 32)) (v_prenex_104 (_ BitVec 32)) (v_prenex_103 (_ BitVec 32)) (v_prenex_102 (_ BitVec 32)) (v_prenex_101 (_ BitVec 32)) (|v_main_#t~malloc37.base_14| (_ BitVec 32)) (v_prenex_100 (_ BitVec 32))) (or (= (let ((.cse9 (bvadd c_main_~item~0.offset (_ bv4 32)))) (let ((.cse6 (let ((.cse10 (let ((.cse11 (store |c_#memory_$Pointer$.offset| c_main_~item~0.base (store (store (select |c_#memory_$Pointer$.offset| c_main_~item~0.base) c_main_~item~0.offset c_main_~node~1.offset) .cse9 v_prenex_107)))) (store .cse11 |v_main_#t~malloc37.base_14| (store (select .cse11 |v_main_#t~malloc37.base_14|) v_prenex_101 v_prenex_103))))) (store .cse10 v_prenex_104 (store (store (select .cse10 v_prenex_104) (_ bv0 32) v_prenex_100) (_ bv4 32) c_main_~item~0.offset))))) (select (select .cse6 (select (select (let ((.cse7 (let ((.cse8 (store |c_#memory_$Pointer$.base| c_main_~item~0.base (store (store (select |c_#memory_$Pointer$.base| c_main_~item~0.base) c_main_~item~0.offset c_main_~node~1.base) .cse9 v_prenex_106)))) (store .cse8 |v_main_#t~malloc37.base_14| (store (select .cse8 |v_main_#t~malloc37.base_14|) v_prenex_101 v_prenex_102))))) (store .cse7 v_prenex_104 (store (store (select .cse7 v_prenex_104) (_ bv0 32) |v_main_#t~malloc37.base_14|) (_ bv4 32) c_main_~item~0.base))) c_main_~item~0.base) c_main_~item~0.offset)) (select (select .cse6 c_main_~item~0.base) c_main_~item~0.offset)))) (_ bv0 32)) (not (= (select (store |c_#valid| |v_main_#t~malloc37.base_14| (_ bv1 1)) v_prenex_104) (_ bv0 1))) (not (= (select |c_#valid| |v_main_#t~malloc37.base_14|) (_ bv0 1)))))) is different from false [2018-11-10 11:11:10,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 448 treesize of output 393 [2018-11-10 11:11:11,180 WARN L179 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2018-11-10 11:11:11,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 11:11:11,197 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:11,447 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:11,516 INFO L303 Elim1Store]: Index analysis took 130 ms [2018-11-10 11:11:11,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 343 treesize of output 353 [2018-11-10 11:11:11,739 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:11,746 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 338 treesize of output 344 [2018-11-10 11:11:11,757 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:11,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-10 11:11:11,776 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:11,850 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:12,150 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 336 treesize of output 339 [2018-11-10 11:11:12,167 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-10 11:11:12,167 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:12,244 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:12,641 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:12,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 340 treesize of output 353 [2018-11-10 11:11:14,302 WARN L179 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 125 DAG size of output: 120 [2018-11-10 11:11:14,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 331 treesize of output 330 [2018-11-10 11:11:14,312 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:14,314 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:11:14,314 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:14,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 619 treesize of output 618 [2018-11-10 11:11:14,326 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:14,791 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:14,799 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 327 treesize of output 324 [2018-11-10 11:11:14,799 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:15,160 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:15,161 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:15,161 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:15,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 320 treesize of output 321 [2018-11-10 11:11:15,194 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-11-10 11:11:15,194 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:15,254 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 289 treesize of output 293 [2018-11-10 11:11:15,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 281 [2018-11-10 11:11:15,361 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:15,373 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:15,415 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:11:15,415 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:15,447 INFO L267 ElimStorePlain]: Start of recursive call 14: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:15,702 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:15,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 324 treesize of output 323 [2018-11-10 11:11:15,782 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 311 treesize of output 297 [2018-11-10 11:11:15,782 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:15,973 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 294 treesize of output 288 [2018-11-10 11:11:15,973 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:16,215 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 311 treesize of output 307 [2018-11-10 11:11:16,216 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-11-10 11:11:16,420 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 303 treesize of output 289 [2018-11-10 11:11:16,421 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:16,590 INFO L267 ElimStorePlain]: Start of recursive call 19: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:11:16,712 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:16,942 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:16,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 325 [2018-11-10 11:11:17,204 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-11-10 11:11:17,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 11:11:17,219 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:17,320 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:17,328 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 305 [2018-11-10 11:11:17,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 296 treesize of output 290 [2018-11-10 11:11:17,401 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2018-11-10 11:11:17,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:11:17,528 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:17,599 INFO L267 ElimStorePlain]: Start of recursive call 26: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:11:17,680 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:11:17,762 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:17,829 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:18,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 190 [2018-11-10 11:11:18,978 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-11-10 11:11:18,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 11:11:18,986 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:19,051 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:19,137 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 118 treesize of output 106 [2018-11-10 11:11:19,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 95 [2018-11-10 11:11:19,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-10 11:11:19,160 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:19,198 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:19,332 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:19,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 94 [2018-11-10 11:11:19,339 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:19,339 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:19,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 27 [2018-11-10 11:11:19,343 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:19,373 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:19,503 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:19,514 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:19,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 90 [2018-11-10 11:11:20,205 WARN L179 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 110 [2018-11-10 11:11:20,207 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:11:20,207 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,212 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:20,213 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,214 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 56 treesize of output 60 [2018-11-10 11:11:20,214 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,215 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:11:20,216 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,222 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:20,222 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,223 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 70 treesize of output 74 [2018-11-10 11:11:20,224 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,225 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:11:20,226 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,232 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:20,232 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,233 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 84 treesize of output 88 [2018-11-10 11:11:20,233 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,240 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:20,240 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,241 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 70 treesize of output 74 [2018-11-10 11:11:20,241 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,419 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 55 treesize of output 54 [2018-11-10 11:11:20,419 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,508 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,508 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,509 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 52 [2018-11-10 11:11:20,529 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:20,530 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2018-11-10 11:11:20,555 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 14 treesize of output 10 [2018-11-10 11:11:20,555 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,566 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-11-10 11:11:20,587 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,594 INFO L267 ElimStorePlain]: Start of recursive call 45: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,637 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,640 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 40 treesize of output 35 [2018-11-10 11:11:20,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 6 [2018-11-10 11:11:20,647 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:11:20,662 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,670 INFO L267 ElimStorePlain]: Start of recursive call 49: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,701 INFO L267 ElimStorePlain]: Start of recursive call 36: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:11:20,826 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,835 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 90 treesize of output 70 [2018-11-10 11:11:20,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 11:11:20,940 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,968 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 33 [2018-11-10 11:11:20,978 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:20,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2018-11-10 11:11:20,982 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:11:20,995 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:20,998 INFO L267 ElimStorePlain]: Start of recursive call 54: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:21,005 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:21,028 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:11:21,068 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 11:11:21,544 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 448 treesize of output 393 [2018-11-10 11:11:21,817 WARN L179 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2018-11-10 11:11:21,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 11:11:21,830 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:22,003 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:22,057 INFO L303 Elim1Store]: Index analysis took 106 ms [2018-11-10 11:11:22,154 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 343 treesize of output 353 [2018-11-10 11:11:22,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 338 treesize of output 341 [2018-11-10 11:11:22,292 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 3 case distinctions, treesize of input 22 treesize of output 30 [2018-11-10 11:11:22,292 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 2 xjuncts. [2018-11-10 11:11:22,380 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:22,808 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 336 treesize of output 339 [2018-11-10 11:11:22,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-10 11:11:22,836 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:22,946 INFO L267 ElimStorePlain]: Start of recursive call 62: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:23,571 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:23,655 INFO L303 Elim1Store]: Index analysis took 126 ms [2018-11-10 11:11:23,797 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 340 treesize of output 353 [2018-11-10 11:11:25,742 WARN L179 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 120 DAG size of output: 120 [2018-11-10 11:11:25,753 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:25,761 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 327 treesize of output 328 [2018-11-10 11:11:25,761 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:25,787 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:25,804 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 615 treesize of output 616 [2018-11-10 11:11:25,804 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:25,806 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:11:25,806 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:26,352 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 325 treesize of output 324 [2018-11-10 11:11:26,352 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:26,625 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:26,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 324 treesize of output 317 [2018-11-10 11:11:26,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:11:26,662 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:26,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:11:26,746 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:26,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 281 [2018-11-10 11:11:26,818 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:26,855 INFO L267 ElimStorePlain]: Start of recursive call 69: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:27,056 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:27,135 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 324 treesize of output 323 [2018-11-10 11:11:27,153 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 311 treesize of output 297 [2018-11-10 11:11:27,153 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:27,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 288 [2018-11-10 11:11:27,282 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:27,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 311 treesize of output 307 [2018-11-10 11:11:27,482 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 2 xjuncts. [2018-11-10 11:11:27,636 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 303 treesize of output 289 [2018-11-10 11:11:27,636 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:27,728 INFO L267 ElimStorePlain]: Start of recursive call 73: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:11:27,912 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:27,922 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 318 treesize of output 311 [2018-11-10 11:11:27,929 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 8 treesize of output 1 [2018-11-10 11:11:27,929 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:28,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 281 [2018-11-10 11:11:28,003 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:28,037 INFO L267 ElimStorePlain]: Start of recursive call 78: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:28,127 INFO L267 ElimStorePlain]: Start of recursive call 64: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:11:28,488 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:28,571 INFO L303 Elim1Store]: Index analysis took 129 ms [2018-11-10 11:11:28,766 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 335 treesize of output 346 [2018-11-10 11:11:30,133 WARN L179 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 116 [2018-11-10 11:11:30,144 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 614 treesize of output 613 [2018-11-10 11:11:30,145 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:30,147 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-10 11:11:30,147 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:30,156 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 326 treesize of output 325 [2018-11-10 11:11:30,156 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:30,959 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:31,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 317 treesize of output 323 [2018-11-10 11:11:31,120 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 3 case distinctions, treesize of input 22 treesize of output 30 [2018-11-10 11:11:31,121 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 2 xjuncts. [2018-11-10 11:11:31,314 INFO L267 ElimStorePlain]: Start of recursive call 85: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:11:31,808 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:31,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 315 [2018-11-10 11:11:31,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 302 treesize of output 290 [2018-11-10 11:11:31,887 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 2 xjuncts. [2018-11-10 11:11:32,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:11:32,021 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:32,118 INFO L267 ElimStorePlain]: Start of recursive call 87: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:11:32,125 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:32,135 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 318 treesize of output 313 [2018-11-10 11:11:32,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 11:11:32,142 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:32,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 281 [2018-11-10 11:11:32,213 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:32,250 INFO L267 ElimStorePlain]: Start of recursive call 90: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:32,530 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:11:32,623 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 316 treesize of output 325 [2018-11-10 11:11:32,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 311 treesize of output 314 [2018-11-10 11:11:32,813 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-11-10 11:11:32,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 296 treesize of output 281 [2018-11-10 11:11:32,844 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:32,898 INFO L267 ElimStorePlain]: Start of recursive call 94: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:11:33,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 288 [2018-11-10 11:11:33,282 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-11-10 11:11:33,633 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:11:34,033 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:11:34,033 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_260 term size 47 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java: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) [2018-11-10 11:11:34,036 INFO L168 Benchmark]: Toolchain (without parser) took 189657.73 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 248.0 MB). Free memory was 945.5 MB in the beginning and 992.1 MB in the end (delta: -46.6 MB). Peak memory consumption was 430.0 MB. Max. memory is 11.5 GB. [2018-11-10 11:11:34,036 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:11:34,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.04 ms. Allocated memory is still 1.0 GB. Free memory was 945.5 MB in the beginning and 913.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-10 11:11:34,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 913.2 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-10 11:11:34,036 INFO L168 Benchmark]: Boogie Preprocessor took 36.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:11:34,036 INFO L168 Benchmark]: RCFGBuilder took 653.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 11.5 GB. [2018-11-10 11:11:34,037 INFO L168 Benchmark]: TraceAbstraction took 188539.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 125.3 MB). Free memory was 1.0 GB in the beginning and 992.1 MB in the end (delta: 22.9 MB). Peak memory consumption was 376.8 MB. Max. memory is 11.5 GB. [2018-11-10 11:11:34,038 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.04 ms. Allocated memory is still 1.0 GB. Free memory was 945.5 MB in the beginning and 913.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 913.2 MB in the beginning and 1.1 GB in the end (delta: -195.8 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 653.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 188539.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 125.3 MB). Free memory was 1.0 GB in the beginning and 992.1 MB in the end (delta: 22.9 MB). Peak memory consumption was 376.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_260 term size 47 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_260 term size 47: 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...