./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/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 31978db89ae521f3f75fa608730a1f5cd4ee8ad4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/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 31978db89ae521f3f75fa608730a1f5cd4ee8ad4 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store (store (store v_arrayElimCell_52 main_~head~0.offset |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) (bvadd v_main_~x~0.offset_22 (_ bv8 32)) v_DerPreprocessor_8) --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:27:47,142 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:27:47,144 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:27:47,153 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:27:47,153 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:27:47,154 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:27:47,155 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:27:47,156 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:27:47,157 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:27:47,158 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:27:47,158 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:27:47,158 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:27:47,159 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:27:47,160 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:27:47,161 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:27:47,161 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:27:47,162 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:27:47,163 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:27:47,165 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:27:47,166 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:27:47,167 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:27:47,167 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:27:47,169 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:27:47,169 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:27:47,169 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:27:47,170 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:27:47,171 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:27:47,171 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:27:47,172 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:27:47,173 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:27:47,173 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:27:47,174 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:27:47,174 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:27:47,174 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:27:47,174 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:27:47,175 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:27:47,175 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 03:27:47,185 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:27:47,185 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:27:47,186 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:27:47,186 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:27:47,186 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 03:27:47,186 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 03:27:47,186 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 03:27:47,187 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 03:27:47,187 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 03:27:47,187 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 03:27:47,187 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 03:27:47,187 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 03:27:47,187 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 03:27:47,188 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:27:47,188 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:27:47,188 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:27:47,188 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:27:47,188 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:27:47,188 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:27:47,189 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:27:47,189 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:27:47,189 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:27:47,189 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:27:47,189 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:27:47,189 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:27:47,189 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:27:47,190 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:27:47,190 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:27:47,190 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:27:47,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:27:47,190 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:27:47,190 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:27:47,190 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:27:47,191 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 03:27:47,191 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:27:47,191 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:27:47,191 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 03:27:47,191 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_2cce406e-c99d-49e5-92e0-0eb6d0f57746/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 -> 31978db89ae521f3f75fa608730a1f5cd4ee8ad4 [2018-11-23 03:27:47,217 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:27:47,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:27:47,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:27:47,229 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:27:47,230 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:27:47,230 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-23 03:27:47,266 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/data/224ea7e57/c1ffdac0c1f3442999b41f687a7f9949/FLAG4f67a9af3 [2018-11-23 03:27:47,651 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:27:47,652 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-23 03:27:47,660 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/data/224ea7e57/c1ffdac0c1f3442999b41f687a7f9949/FLAG4f67a9af3 [2018-11-23 03:27:48,030 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/data/224ea7e57/c1ffdac0c1f3442999b41f687a7f9949 [2018-11-23 03:27:48,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:27:48,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:27:48,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:27:48,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:27:48,037 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:27:48,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68436566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48, skipping insertion in model container [2018-11-23 03:27:48,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:27:48,079 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:27:48,294 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:27:48,303 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:27:48,377 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:27:48,409 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:27:48,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48 WrapperNode [2018-11-23 03:27:48,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:27:48,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:27:48,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:27:48,410 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:27:48,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:27:48,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:27:48,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:27:48,430 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:27:48,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (1/1) ... [2018-11-23 03:27:48,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:27:48,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:27:48,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:27:48,458 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:27:48,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:27:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 03:27:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 03:27:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 03:27:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:27:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:27:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:27:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:27:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 03:27:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 03:27:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 03:27:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:27:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:27:48,749 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:27:48,749 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 03:27:48,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:27:48 BoogieIcfgContainer [2018-11-23 03:27:48,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:27:48,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:27:48,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:27:48,753 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:27:48,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:27:48" (1/3) ... [2018-11-23 03:27:48,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2102a4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:27:48, skipping insertion in model container [2018-11-23 03:27:48,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:27:48" (2/3) ... [2018-11-23 03:27:48,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2102a4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:27:48, skipping insertion in model container [2018-11-23 03:27:48,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:27:48" (3/3) ... [2018-11-23 03:27:48,756 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-23 03:27:48,762 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:27:48,767 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:27:48,777 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:27:48,797 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:27:48,797 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:27:48,797 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:27:48,797 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:27:48,797 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:27:48,797 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:27:48,797 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:27:48,797 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:27:48,808 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-11-23 03:27:48,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 03:27:48,812 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:27:48,813 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:27:48,814 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:27:48,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:27:48,818 INFO L82 PathProgramCache]: Analyzing trace with hash -233588477, now seen corresponding path program 1 times [2018-11-23 03:27:48,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:27:48,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:48,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:27:48,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:48,859 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:27:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:27:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:27:48,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:27:48,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 03:27:48,935 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:27:48,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 03:27:48,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 03:27:48,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 03:27:48,950 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2018-11-23 03:27:48,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:27:48,965 INFO L93 Difference]: Finished difference Result 57 states and 83 transitions. [2018-11-23 03:27:48,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 03:27:48,966 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-23 03:27:48,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:27:48,976 INFO L225 Difference]: With dead ends: 57 [2018-11-23 03:27:48,976 INFO L226 Difference]: Without dead ends: 26 [2018-11-23 03:27:48,979 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 03:27:48,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-23 03:27:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-23 03:27:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 03:27:49,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2018-11-23 03:27:49,003 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 19 [2018-11-23 03:27:49,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:27:49,004 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-23 03:27:49,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 03:27:49,004 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-11-23 03:27:49,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 03:27:49,005 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:27:49,005 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:27:49,005 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:27:49,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:27:49,006 INFO L82 PathProgramCache]: Analyzing trace with hash -361078066, now seen corresponding path program 1 times [2018-11-23 03:27:49,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:27:49,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:49,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:27:49,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:49,008 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:27:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:27:49,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:27:49,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:27:49,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:27:49,063 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:27:49,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:27:49,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:27:49,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:27:49,065 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand 3 states. [2018-11-23 03:27:49,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:27:49,088 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2018-11-23 03:27:49,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:27:49,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-23 03:27:49,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:27:49,089 INFO L225 Difference]: With dead ends: 29 [2018-11-23 03:27:49,089 INFO L226 Difference]: Without dead ends: 27 [2018-11-23 03:27:49,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:27:49,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-23 03:27:49,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-23 03:27:49,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-23 03:27:49,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2018-11-23 03:27:49,094 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 20 [2018-11-23 03:27:49,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:27:49,094 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-23 03:27:49,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:27:49,094 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2018-11-23 03:27:49,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 03:27:49,095 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:27:49,095 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:27:49,095 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:27:49,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:27:49,095 INFO L82 PathProgramCache]: Analyzing trace with hash -361076144, now seen corresponding path program 1 times [2018-11-23 03:27:49,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:27:49,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:49,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:27:49,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:49,097 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:27:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:27:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:27:49,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:27:49,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 03:27:49,329 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:27:49,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 03:27:49,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 03:27:49,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 03:27:49,330 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 7 states. [2018-11-23 03:27:49,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:27:49,666 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2018-11-23 03:27:49,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 03:27:49,667 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-23 03:27:49,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:27:49,668 INFO L225 Difference]: With dead ends: 73 [2018-11-23 03:27:49,668 INFO L226 Difference]: Without dead ends: 60 [2018-11-23 03:27:49,669 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-23 03:27:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-23 03:27:49,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 38. [2018-11-23 03:27:49,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-23 03:27:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2018-11-23 03:27:49,678 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 20 [2018-11-23 03:27:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:27:49,678 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2018-11-23 03:27:49,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 03:27:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2018-11-23 03:27:49,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 03:27:49,679 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:27:49,679 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:27:49,680 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:27:49,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:27:49,680 INFO L82 PathProgramCache]: Analyzing trace with hash -359229102, now seen corresponding path program 1 times [2018-11-23 03:27:49,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:27:49,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:49,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:27:49,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:49,682 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:27:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:27:49,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:27:49,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:27:49,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:27:49,759 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:27:49,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:27:49,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:27:49,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:27:49,760 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand 6 states. [2018-11-23 03:27:49,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:27:49,897 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2018-11-23 03:27:49,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 03:27:49,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-23 03:27:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:27:49,898 INFO L225 Difference]: With dead ends: 59 [2018-11-23 03:27:49,898 INFO L226 Difference]: Without dead ends: 57 [2018-11-23 03:27:49,899 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-23 03:27:49,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-23 03:27:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2018-11-23 03:27:49,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-23 03:27:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2018-11-23 03:27:49,906 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 20 [2018-11-23 03:27:49,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:27:49,906 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2018-11-23 03:27:49,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:27:49,906 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2018-11-23 03:27:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 03:27:49,907 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:27:49,907 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:27:49,907 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:27:49,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:27:49,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1415778260, now seen corresponding path program 1 times [2018-11-23 03:27:49,908 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:27:49,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:49,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:27:49,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:49,909 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:27:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:27:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:27:49,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:27:49,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:27:49,948 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:27:49,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:27:49,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:27:49,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:27:49,949 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand 6 states. [2018-11-23 03:27:50,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:27:50,094 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2018-11-23 03:27:50,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 03:27:50,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-23 03:27:50,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:27:50,096 INFO L225 Difference]: With dead ends: 85 [2018-11-23 03:27:50,096 INFO L226 Difference]: Without dead ends: 64 [2018-11-23 03:27:50,096 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 03:27:50,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-23 03:27:50,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2018-11-23 03:27:50,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-23 03:27:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2018-11-23 03:27:50,102 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 20 [2018-11-23 03:27:50,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:27:50,102 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 54 transitions. [2018-11-23 03:27:50,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:27:50,102 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2018-11-23 03:27:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 03:27:50,103 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:27:50,103 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:27:50,103 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:27:50,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:27:50,104 INFO L82 PathProgramCache]: Analyzing trace with hash -167626761, now seen corresponding path program 1 times [2018-11-23 03:27:50,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:27:50,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:50,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:27:50,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:50,105 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:27:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:27:50,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:27:50,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:27:50,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:27:50,175 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:27:50,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:27:50,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:27:50,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:27:50,176 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. Second operand 6 states. [2018-11-23 03:27:50,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:27:50,339 INFO L93 Difference]: Finished difference Result 109 states and 142 transitions. [2018-11-23 03:27:50,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 03:27:50,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-23 03:27:50,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:27:50,346 INFO L225 Difference]: With dead ends: 109 [2018-11-23 03:27:50,346 INFO L226 Difference]: Without dead ends: 92 [2018-11-23 03:27:50,346 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-11-23 03:27:50,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-11-23 03:27:50,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 50. [2018-11-23 03:27:50,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-23 03:27:50,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2018-11-23 03:27:50,354 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 21 [2018-11-23 03:27:50,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:27:50,354 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2018-11-23 03:27:50,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:27:50,355 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2018-11-23 03:27:50,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 03:27:50,355 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:27:50,355 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:27:50,356 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:27:50,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:27:50,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1609227643, now seen corresponding path program 1 times [2018-11-23 03:27:50,356 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:27:50,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:50,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:27:50,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:50,357 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:27:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:27:50,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:27:50,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:27:50,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:27:50,475 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:27:50,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:27:50,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:27:50,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:27:50,476 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand 6 states. [2018-11-23 03:27:50,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:27:50,653 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2018-11-23 03:27:50,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 03:27:50,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-23 03:27:50,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:27:50,655 INFO L225 Difference]: With dead ends: 83 [2018-11-23 03:27:50,655 INFO L226 Difference]: Without dead ends: 81 [2018-11-23 03:27:50,655 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-23 03:27:50,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-11-23 03:27:50,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 50. [2018-11-23 03:27:50,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-23 03:27:50,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2018-11-23 03:27:50,663 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 21 [2018-11-23 03:27:50,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:27:50,663 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2018-11-23 03:27:50,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:27:50,663 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2018-11-23 03:27:50,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 03:27:50,664 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:27:50,664 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:27:50,664 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:27:50,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:27:50,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1311284775, now seen corresponding path program 1 times [2018-11-23 03:27:50,665 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:27:50,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:50,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:27:50,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:27:50,666 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:27:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:27:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:27:51,020 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 03:27:51,020 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 03:27:51,020 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-11-23 03:27:51,022 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [8], [17], [22], [25], [27], [30], [42], [51], [55], [58], [62], [65], [69], [74], [78], [79], [117], [118], [119] [2018-11-23 03:27:51,047 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 03:27:51,047 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 03:27:51,232 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 03:27:51,233 INFO L272 AbstractInterpreter]: Visited 22 different actions 22 times. Never merged. Never widened. Performed 369 root evaluator evaluations with a maximum evaluation depth of 3. Performed 369 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 47 variables. [2018-11-23 03:27:51,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:27:51,240 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 03:27:51,240 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 03:27:51,240 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 03:27:51,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:27:51,248 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 03:27:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:27:51,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:27:51,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 03:27:51,328 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,335 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,335 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 03:27:51,362 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,364 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,365 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 03:27:51,365 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,387 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 03:27:51,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-23 03:27:51,390 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,401 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-23 03:27:51,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 13 [2018-11-23 03:27:51,404 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,409 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,413 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,429 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 03:27:51,431 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-11-23 03:27:51,431 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,439 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-23 03:27:51,441 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 13 [2018-11-23 03:27:51,442 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,446 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,449 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,459 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,460 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:82, output treesize:68 [2018-11-23 03:27:51,510 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,512 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,513 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,514 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-11-23 03:27:51,514 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,553 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 82 [2018-11-23 03:27:51,559 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 83 [2018-11-23 03:27:51,560 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,592 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 92 [2018-11-23 03:27:51,595 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 03:27:51,595 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,608 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,619 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,652 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 64 [2018-11-23 03:27:51,655 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,657 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 52 [2018-11-23 03:27:51,657 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,674 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 82 [2018-11-23 03:27:51,677 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-23 03:27:51,677 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,686 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,691 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:51,714 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:136, output treesize:115 [2018-11-23 03:27:51,781 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,787 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,790 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,794 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,795 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 55 [2018-11-23 03:27:51,796 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,862 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:51,866 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:51,934 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 239 [2018-11-23 03:27:51,938 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:51,940 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2018-11-23 03:27:51,941 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:51,967 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:52,035 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 193 [2018-11-23 03:27:52,040 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:52,042 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 31 [2018-11-23 03:27:52,043 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:52,093 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 195 [2018-11-23 03:27:52,101 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 03:27:52,101 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:52,134 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:52,162 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:52,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2018-11-23 03:27:52,210 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:52,211 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-23 03:27:52,231 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:52,233 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:52,238 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:27:52,247 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-23 03:27:52,247 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:52,258 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:52,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 148 [2018-11-23 03:27:52,295 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-11-23 03:27:52,295 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 03:27:52,316 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:52,328 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:27:52,359 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:52,359 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 9 variables, input treesize:285, output treesize:205 [2018-11-23 03:27:52,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:27:52,478 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 03:27:52,526 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:52,537 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:52,579 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:52,589 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:52,619 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:52,628 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:52,657 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:52,671 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:27:52,694 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2018-11-23 03:27:52,694 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:301, output treesize:281 [2018-11-23 03:27:55,479 WARN L180 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 105 [2018-11-23 03:28:01,735 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 107 [2018-11-23 03:28:01,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 950 treesize of output 801 [2018-11-23 03:28:01,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-23 03:28:01,760 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:01,863 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 770 treesize of output 732 [2018-11-23 03:28:01,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 718 treesize of output 723 [2018-11-23 03:28:01,870 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,059 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 717 treesize of output 725 [2018-11-23 03:28:02,060 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:02,291 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 714 treesize of output 689 [2018-11-23 03:28:02,342 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,345 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2018-11-23 03:28:02,346 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,376 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,376 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,376 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 662 treesize of output 672 [2018-11-23 03:28:02,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-23 03:28:02,449 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,451 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-23 03:28:02,454 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,454 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,455 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,458 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 03:28:02,459 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,468 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,475 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,495 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,497 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 664 treesize of output 655 [2018-11-23 03:28:02,501 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 630 treesize of output 623 [2018-11-23 03:28:02,505 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,525 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,526 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,526 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,531 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-11-23 03:28:02,531 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,541 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,544 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,553 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 718 treesize of output 691 [2018-11-23 03:28:02,616 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 37 [2018-11-23 03:28:02,630 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:02,672 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,673 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,673 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,683 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 672 treesize of output 682 [2018-11-23 03:28:02,754 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-23 03:28:02,761 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,763 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-23 03:28:02,766 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,767 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,767 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,771 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 03:28:02,771 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,782 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,789 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,809 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,812 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 674 treesize of output 663 [2018-11-23 03:28:02,816 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,835 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 638 treesize of output 637 [2018-11-23 03:28:02,835 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 4 xjuncts. [2018-11-23 03:28:02,890 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,890 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,890 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,896 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-11-23 03:28:02,896 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:02,923 INFO L267 ElimStorePlain]: Start of recursive call 22: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:02,941 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:02,946 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,946 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,946 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:02,955 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 668 treesize of output 678 [2018-11-23 03:28:03,018 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-23 03:28:03,021 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,023 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-23 03:28:03,026 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,027 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,027 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,030 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 03:28:03,030 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:03,038 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:03,044 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:03,063 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,065 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 666 treesize of output 657 [2018-11-23 03:28:03,068 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,069 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 632 treesize of output 619 [2018-11-23 03:28:03,070 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:03,083 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,083 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,084 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-11-23 03:28:03,088 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:03,095 INFO L267 ElimStorePlain]: Start of recursive call 29: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:03,102 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:03,139 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:03,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 717 treesize of output 707 [2018-11-23 03:28:03,638 WARN L180 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2018-11-23 03:28:03,641 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-23 03:28:03,641 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:03,649 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,689 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 1333 treesize of output 1361 [2018-11-23 03:28:03,690 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:03,695 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,715 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 678 treesize of output 706 [2018-11-23 03:28:03,716 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:03,957 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:03,982 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 686 treesize of output 699 [2018-11-23 03:28:03,983 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:04,176 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,182 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 685 treesize of output 687 [2018-11-23 03:28:04,246 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-11-23 03:28:04,249 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,250 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-23 03:28:04,253 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,253 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,253 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,257 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 03:28:04,257 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,265 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,272 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 653 treesize of output 653 [2018-11-23 03:28:04,278 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 653 treesize of output 656 [2018-11-23 03:28:04,284 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,285 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,285 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,289 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 651 treesize of output 668 [2018-11-23 03:28:04,289 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,304 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,316 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,355 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 666 treesize of output 657 [2018-11-23 03:28:04,360 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,362 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 632 treesize of output 619 [2018-11-23 03:28:04,362 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,375 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,376 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,376 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,380 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-11-23 03:28:04,380 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,389 INFO L267 ElimStorePlain]: Start of recursive call 44: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,398 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,401 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,407 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 689 treesize of output 691 [2018-11-23 03:28:04,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 653 treesize of output 653 [2018-11-23 03:28:04,466 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,469 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 653 treesize of output 656 [2018-11-23 03:28:04,473 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,474 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,474 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,480 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 651 treesize of output 668 [2018-11-23 03:28:04,480 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,500 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,513 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-11-23 03:28:04,519 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,521 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-23 03:28:04,524 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,524 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,525 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,529 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 03:28:04,529 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,543 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,553 INFO L267 ElimStorePlain]: Start of recursive call 51: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,611 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,613 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 674 treesize of output 663 [2018-11-23 03:28:04,618 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,642 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 638 treesize of output 637 [2018-11-23 03:28:04,642 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 4 xjuncts. [2018-11-23 03:28:04,685 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,686 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,686 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,691 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-11-23 03:28:04,691 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:04,716 INFO L267 ElimStorePlain]: Start of recursive call 54: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:04,742 INFO L267 ElimStorePlain]: Start of recursive call 47: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:04,901 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,901 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,901 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:04,959 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 675 treesize of output 702 [2018-11-23 03:28:05,366 WARN L180 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2018-11-23 03:28:05,371 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 1293 treesize of output 1296 [2018-11-23 03:28:05,375 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,379 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-23 03:28:05,383 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,384 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,384 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 03:28:05,391 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,408 INFO L267 ElimStorePlain]: Start of recursive call 59: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,448 INFO L267 ElimStorePlain]: Start of recursive call 58: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 683 treesize of output 686 [2018-11-23 03:28:05,456 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,458 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-23 03:28:05,462 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,463 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,463 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,468 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 03:28:05,468 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,479 INFO L267 ElimStorePlain]: Start of recursive call 62: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,506 INFO L267 ElimStorePlain]: Start of recursive call 61: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,509 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 685 treesize of output 688 [2018-11-23 03:28:05,513 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-23 03:28:05,520 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,520 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,520 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,525 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 03:28:05,526 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,537 INFO L267 ElimStorePlain]: Start of recursive call 65: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,581 INFO L267 ElimStorePlain]: Start of recursive call 64: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,584 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 684 treesize of output 687 [2018-11-23 03:28:05,587 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,588 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-23 03:28:05,591 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,592 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,592 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,596 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 03:28:05,596 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,606 INFO L267 ElimStorePlain]: Start of recursive call 68: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,632 INFO L267 ElimStorePlain]: Start of recursive call 67: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:05,885 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,890 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 666 treesize of output 659 [2018-11-23 03:28:05,897 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:05,922 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 648 treesize of output 661 [2018-11-23 03:28:05,984 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 656 treesize of output 689 [2018-11-23 03:28:05,992 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:06,003 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:06,054 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 666 treesize of output 695 [2018-11-23 03:28:06,534 WARN L180 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2018-11-23 03:28:06,537 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:06,539 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:06,540 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:06,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 659 treesize of output 668 [2018-11-23 03:28:06,558 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:06,781 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:06,782 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:06,787 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:06,831 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 662 treesize of output 669 [2018-11-23 03:28:06,832 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 4 xjuncts. [2018-11-23 03:28:07,062 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:07,062 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:07,068 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:07,083 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:07,100 INFO L478 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 2 case distinctions, treesize of input 659 treesize of output 662 [2018-11-23 03:28:07,101 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 4 xjuncts. [2018-11-23 03:28:07,300 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:07,303 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:07,310 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:07,312 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:07,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 657 treesize of output 675 [2018-11-23 03:28:07,358 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 4 xjuncts. [2018-11-23 03:28:07,524 INFO L267 ElimStorePlain]: Start of recursive call 73: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 03:28:08,041 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:08,041 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:08,043 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:08,054 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 660 treesize of output 681 [2018-11-23 03:28:08,151 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:08,152 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:08,152 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:08,153 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:08,159 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 638 treesize of output 645 [2018-11-23 03:28:08,160 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:08,178 INFO L267 ElimStorePlain]: Start of recursive call 78: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:09,536 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:09,539 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:09,558 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 649 treesize of output 672 [2018-11-23 03:28:09,706 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2018-11-23 03:28:09,708 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-23 03:28:09,709 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:09,715 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:09,718 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:09,734 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 650 treesize of output 641 [2018-11-23 03:28:09,734 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:09,741 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:09,742 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:09,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 1260 treesize of output 1251 [2018-11-23 03:28:09,757 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:09,832 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:09,834 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:09,838 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 645 treesize of output 645 [2018-11-23 03:28:09,838 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:09,878 INFO L267 ElimStorePlain]: Start of recursive call 80: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:10,207 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:10,226 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 654 treesize of output 671 [2018-11-23 03:28:10,359 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2018-11-23 03:28:10,361 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:10,363 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 654 treesize of output 641 [2018-11-23 03:28:10,364 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:10,425 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:10,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 654 treesize of output 645 [2018-11-23 03:28:10,447 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:10,479 INFO L267 ElimStorePlain]: Start of recursive call 85: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:10,755 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:10,755 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:10,758 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:10,760 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:10,798 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 661 treesize of output 689 [2018-11-23 03:28:11,056 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2018-11-23 03:28:11,060 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:11,060 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:11,063 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:11,066 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 664 treesize of output 650 [2018-11-23 03:28:11,066 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:11,125 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:11,125 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:11,129 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:11,130 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:11,151 INFO L478 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 661 treesize of output 656 [2018-11-23 03:28:11,151 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:11,217 INFO L267 ElimStorePlain]: Start of recursive call 88: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:11,506 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:11,510 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:11,513 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:11,516 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:11,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 658 treesize of output 702 [2018-11-23 03:28:12,605 WARN L180 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 196 DAG size of output: 178 [2018-11-23 03:28:12,608 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-23 03:28:12,609 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:12,633 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:12,635 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:12,679 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 1283 treesize of output 1272 [2018-11-23 03:28:12,680 INFO L267 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:12,711 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:12,713 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:12,746 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 673 treesize of output 662 [2018-11-23 03:28:12,746 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:13,212 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,213 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,213 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,219 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:13,284 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 659 treesize of output 678 [2018-11-23 03:28:13,286 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 8 xjuncts. [2018-11-23 03:28:13,636 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,637 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,637 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,637 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,640 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:13,641 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:13,665 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 658 treesize of output 666 [2018-11-23 03:28:13,665 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:13,967 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,969 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,970 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,970 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,971 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:13,972 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:13,975 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:13,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 659 treesize of output 662 [2018-11-23 03:28:13,988 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:14,189 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:14,189 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:14,190 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:14,190 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:14,192 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:14,193 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:14,203 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 652 treesize of output 656 [2018-11-23 03:28:14,203 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:14,392 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:14,393 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:14,397 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:14,412 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 651 treesize of output 647 [2018-11-23 03:28:14,413 INFO L267 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:14,581 INFO L267 ElimStorePlain]: Start of recursive call 91: 7 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 03:28:15,138 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:15,142 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:15,149 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:15,238 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 654 treesize of output 698 [2018-11-23 03:28:16,361 WARN L180 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 194 DAG size of output: 176 [2018-11-23 03:28:16,367 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:16,371 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:16,372 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:16,373 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:16,417 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 660 treesize of output 676 [2018-11-23 03:28:16,418 INFO L267 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:16,914 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:16,917 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:16,917 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:16,935 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:16,955 INFO L478 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 2 case distinctions, treesize of input 659 treesize of output 662 [2018-11-23 03:28:16,956 INFO L267 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 4 xjuncts. [2018-11-23 03:28:17,253 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:17,256 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:17,266 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:17,346 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 660 treesize of output 685 [2018-11-23 03:28:17,348 INFO L267 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 16 xjuncts. [2018-11-23 03:28:17,842 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:17,845 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:17,845 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:17,846 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:17,865 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 654 treesize of output 668 [2018-11-23 03:28:17,866 INFO L267 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:18,199 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:18,200 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:18,206 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:18,277 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 655 treesize of output 690 [2018-11-23 03:28:18,277 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-23 03:28:18,280 INFO L267 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 16 xjuncts. [2018-11-23 03:28:18,467 INFO L267 ElimStorePlain]: Start of recursive call 100: 7 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 03:28:18,704 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:18,704 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:18,705 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:18,737 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 657 treesize of output 685 [2018-11-23 03:28:18,910 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-11-23 03:28:18,913 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:18,914 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:18,922 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 660 treesize of output 646 [2018-11-23 03:28:18,923 INFO L267 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:18,982 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:18,983 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:18,985 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,015 INFO L478 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 2 case distinctions, treesize of input 657 treesize of output 660 [2018-11-23 03:28:19,015 INFO L267 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 4 xjuncts. [2018-11-23 03:28:19,077 INFO L267 ElimStorePlain]: Start of recursive call 106: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:19,346 INFO L267 ElimStorePlain]: Start of recursive call 72: 16 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 03:28:19,454 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,491 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 649 treesize of output 669 [2018-11-23 03:28:19,495 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,496 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,496 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 655 treesize of output 673 [2018-11-23 03:28:19,572 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,572 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,572 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 640 treesize of output 631 [2018-11-23 03:28:19,578 INFO L267 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:19,596 INFO L267 ElimStorePlain]: Start of recursive call 110: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:19,695 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,697 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,701 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:19,735 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 652 treesize of output 679 [2018-11-23 03:28:20,003 WARN L180 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2018-11-23 03:28:20,013 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:20,050 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 663 treesize of output 666 [2018-11-23 03:28:20,051 INFO L267 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 8 xjuncts. [2018-11-23 03:28:20,064 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:20,099 INFO L478 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 3 case distinctions, treesize of input 1273 treesize of output 1276 [2018-11-23 03:28:20,100 INFO L267 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 8 xjuncts. [2018-11-23 03:28:20,102 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-23 03:28:20,102 INFO L267 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:20,255 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:20,255 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:20,258 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:20,259 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:20,281 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 648 treesize of output 662 [2018-11-23 03:28:20,282 INFO L267 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:20,361 INFO L267 ElimStorePlain]: Start of recursive call 112: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 03:28:20,432 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:20,467 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 646 treesize of output 663 [2018-11-23 03:28:20,603 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2018-11-23 03:28:20,607 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:20,608 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:20,614 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 642 treesize of output 642 [2018-11-23 03:28:20,614 INFO L267 ElimStorePlain]: Start of recursive call 118: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:20,673 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:20,703 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 647 treesize of output 648 [2018-11-23 03:28:20,703 INFO L267 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 4 xjuncts. [2018-11-23 03:28:20,764 INFO L267 ElimStorePlain]: Start of recursive call 117: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:20,800 INFO L267 ElimStorePlain]: Start of recursive call 109: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:20,893 INFO L267 ElimStorePlain]: Start of recursive call 71: 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 03:28:20,962 INFO L267 ElimStorePlain]: Start of recursive call 70: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 03:28:21,282 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:21,282 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:21,283 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:21,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 677 treesize of output 674 [2018-11-23 03:28:21,297 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2018-11-23 03:28:21,297 INFO L267 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 2 xjuncts. [2018-11-23 03:28:21,321 INFO L267 ElimStorePlain]: Start of recursive call 120: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:28:21,331 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:21,364 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 676 treesize of output 681 [2018-11-23 03:28:21,775 WARN L180 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2018-11-23 03:28:21,783 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:21,805 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 1277 treesize of output 1287 [2018-11-23 03:28:22,007 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 03:28:22,008 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store (store v_arrayElimArr_55 v_main_~x~0.offset_22 0) (+ v_main_~x~0.offset_22 8) v_DerPreprocessor_6) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:208) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:191) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 03:28:22,010 INFO L168 Benchmark]: Toolchain (without parser) took 33977.28 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 393.7 MB). Free memory was 956.4 MB in the beginning and 1.0 GB in the end (delta: -58.5 MB). Peak memory consumption was 455.0 MB. Max. memory is 11.5 GB. [2018-11-23 03:28:22,010 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:28:22,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -204.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:28:22,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:28:22,011 INFO L168 Benchmark]: Boogie Preprocessor took 28.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-23 03:28:22,011 INFO L168 Benchmark]: RCFGBuilder took 292.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2018-11-23 03:28:22,011 INFO L168 Benchmark]: TraceAbstraction took 33259.09 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 218.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 114.4 MB). Peak memory consumption was 452.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:28:22,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 375.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -204.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 292.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 33259.09 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 218.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 114.4 MB). Peak memory consumption was 452.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store (store v_arrayElimArr_55 v_main_~x~0.offset_22 0) (+ v_main_~x~0.offset_22 8) v_DerPreprocessor_6) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store (store v_arrayElimArr_55 v_main_~x~0.offset_22 0) (+ v_main_~x~0.offset_22 8) v_DerPreprocessor_6): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 03:28:23,378 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:28:23,379 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:28:23,386 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:28:23,386 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:28:23,387 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:28:23,388 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:28:23,389 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:28:23,390 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:28:23,391 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:28:23,391 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:28:23,391 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:28:23,392 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:28:23,393 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:28:23,394 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:28:23,394 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:28:23,395 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:28:23,396 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:28:23,397 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:28:23,398 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:28:23,399 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:28:23,399 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:28:23,401 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:28:23,401 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:28:23,401 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:28:23,401 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:28:23,402 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:28:23,403 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:28:23,403 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:28:23,404 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:28:23,404 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:28:23,404 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:28:23,405 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:28:23,405 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:28:23,405 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:28:23,406 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:28:23,406 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 03:28:23,416 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:28:23,416 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:28:23,417 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:28:23,417 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:28:23,417 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 03:28:23,417 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 03:28:23,417 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 03:28:23,418 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 03:28:23,418 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 03:28:23,418 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 03:28:23,419 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:28:23,419 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:28:23,419 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:28:23,420 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:28:23,420 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:28:23,420 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:28:23,420 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:28:23,420 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 03:28:23,420 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 03:28:23,420 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:28:23,420 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:28:23,421 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:28:23,421 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:28:23,421 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:28:23,421 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:28:23,421 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:28:23,421 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:28:23,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:28:23,422 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:28:23,422 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:28:23,422 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:28:23,423 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 03:28:23,423 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:28:23,424 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 03:28:23,424 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 03:28:23,424 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_2cce406e-c99d-49e5-92e0-0eb6d0f57746/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 -> 31978db89ae521f3f75fa608730a1f5cd4ee8ad4 [2018-11-23 03:28:23,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:28:23,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:28:23,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:28:23,461 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:28:23,461 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:28:23,462 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/../../sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-23 03:28:23,496 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/data/cfcb18d0a/a995599212f94feba9a460f286aeb5d0/FLAG1807efdfd [2018-11-23 03:28:23,931 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:28:23,931 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/sv-benchmarks/c/forester-heap/sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-23 03:28:23,939 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/data/cfcb18d0a/a995599212f94feba9a460f286aeb5d0/FLAG1807efdfd [2018-11-23 03:28:23,947 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/data/cfcb18d0a/a995599212f94feba9a460f286aeb5d0 [2018-11-23 03:28:23,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:28:23,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:28:23,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:28:23,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:28:23,953 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:28:23,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:28:23" (1/1) ... [2018-11-23 03:28:23,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee470f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:23, skipping insertion in model container [2018-11-23 03:28:23,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:28:23" (1/1) ... [2018-11-23 03:28:23,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:28:23,990 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:28:24,192 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:28:24,202 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:28:24,282 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:28:24,315 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:28:24,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24 WrapperNode [2018-11-23 03:28:24,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:28:24,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:28:24,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:28:24,316 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:28:24,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (1/1) ... [2018-11-23 03:28:24,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (1/1) ... [2018-11-23 03:28:24,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:28:24,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:28:24,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:28:24,338 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:28:24,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (1/1) ... [2018-11-23 03:28:24,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (1/1) ... [2018-11-23 03:28:24,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (1/1) ... [2018-11-23 03:28:24,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (1/1) ... [2018-11-23 03:28:24,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (1/1) ... [2018-11-23 03:28:24,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (1/1) ... [2018-11-23 03:28:24,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (1/1) ... [2018-11-23 03:28:24,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:28:24,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:28:24,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:28:24,362 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:28:24,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:28:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 03:28:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 03:28:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:28:24,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:28:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:28:24,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:28:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 03:28:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 03:28:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 03:28:24,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 03:28:24,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:28:24,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:28:24,846 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:28:24,846 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 03:28:24,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:28:24 BoogieIcfgContainer [2018-11-23 03:28:24,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:28:24,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:28:24,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:28:24,850 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:28:24,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:28:23" (1/3) ... [2018-11-23 03:28:24,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e65023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:28:24, skipping insertion in model container [2018-11-23 03:28:24,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:28:24" (2/3) ... [2018-11-23 03:28:24,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e65023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:28:24, skipping insertion in model container [2018-11-23 03:28:24,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:28:24" (3/3) ... [2018-11-23 03:28:24,852 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-optional_true-unreach-call_true-valid-memsafety.i [2018-11-23 03:28:24,859 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:28:24,865 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:28:24,875 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:28:24,899 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:28:24,899 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:28:24,899 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:28:24,899 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:28:24,899 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:28:24,900 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:28:24,900 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:28:24,900 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:28:24,900 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:28:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-23 03:28:24,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 03:28:24,918 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:28:24,919 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:28:24,921 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:28:24,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:28:24,926 INFO L82 PathProgramCache]: Analyzing trace with hash 754887617, now seen corresponding path program 1 times [2018-11-23 03:28:24,929 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:28:24,929 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 03:28:24,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:28:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:28:25,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:28:25,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:28:25,017 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:28:25,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:28:25,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 03:28:25,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 03:28:25,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 03:28:25,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 03:28:25,033 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-11-23 03:28:25,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:28:25,048 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2018-11-23 03:28:25,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 03:28:25,049 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-23 03:28:25,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:28:25,057 INFO L225 Difference]: With dead ends: 56 [2018-11-23 03:28:25,057 INFO L226 Difference]: Without dead ends: 25 [2018-11-23 03:28:25,060 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 03:28:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-23 03:28:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-23 03:28:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 03:28:25,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2018-11-23 03:28:25,094 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 19 [2018-11-23 03:28:25,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:28:25,095 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2018-11-23 03:28:25,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 03:28:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2018-11-23 03:28:25,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 03:28:25,096 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:28:25,096 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:28:25,096 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:28:25,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:28:25,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1939354226, now seen corresponding path program 1 times [2018-11-23 03:28:25,097 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:28:25,097 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 03:28:25,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:28:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:28:25,161 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:28:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:28:25,174 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:28:25,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:28:25,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:28:25,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:28:25,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:28:25,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:28:25,179 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 3 states. [2018-11-23 03:28:25,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:28:25,198 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2018-11-23 03:28:25,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:28:25,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-23 03:28:25,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:28:25,200 INFO L225 Difference]: With dead ends: 28 [2018-11-23 03:28:25,200 INFO L226 Difference]: Without dead ends: 26 [2018-11-23 03:28:25,200 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:28:25,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-23 03:28:25,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-23 03:28:25,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 03:28:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2018-11-23 03:28:25,204 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 19 [2018-11-23 03:28:25,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:28:25,205 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2018-11-23 03:28:25,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:28:25,205 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-11-23 03:28:25,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 03:28:25,205 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:28:25,205 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:28:25,206 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:28:25,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:28:25,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1939356148, now seen corresponding path program 1 times [2018-11-23 03:28:25,206 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:28:25,206 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 03:28:25,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:28:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:28:25,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:28:25,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 03:28:25,291 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,308 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,308 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 03:28:25,344 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:25,352 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:25,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 03:28:25,353 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,435 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 03:28:25,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 03:28:25,442 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,499 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-23 03:28:25,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 03:28:25,505 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,517 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,528 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,564 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 03:28:25,568 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-23 03:28:25,569 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,585 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 28 [2018-11-23 03:28:25,588 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-23 03:28:25,589 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,596 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,602 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,618 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:25,618 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:78, output treesize:49 [2018-11-23 03:28:25,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:28:25,690 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:28:25,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:28:25,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 03:28:25,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 03:28:25,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 03:28:25,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 03:28:25,695 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand 7 states. [2018-11-23 03:28:28,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:28:28,742 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2018-11-23 03:28:28,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 03:28:28,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-23 03:28:28,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:28:28,744 INFO L225 Difference]: With dead ends: 71 [2018-11-23 03:28:28,744 INFO L226 Difference]: Without dead ends: 58 [2018-11-23 03:28:28,744 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-11-23 03:28:28,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-23 03:28:28,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 36. [2018-11-23 03:28:28,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 03:28:28,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2018-11-23 03:28:28,751 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 19 [2018-11-23 03:28:28,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:28:28,752 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2018-11-23 03:28:28,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 03:28:28,752 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2018-11-23 03:28:28,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 03:28:28,752 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:28:28,753 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:28:28,753 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:28:28,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:28:28,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1941203190, now seen corresponding path program 1 times [2018-11-23 03:28:28,754 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:28:28,754 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 03:28:28,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:28:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:28:28,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:28:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:28:28,902 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:28:28,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:28:28,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:28:28,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:28:28,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:28:28,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:28:28,905 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 6 states. [2018-11-23 03:28:30,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:28:30,200 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2018-11-23 03:28:30,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 03:28:30,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-23 03:28:30,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:28:30,202 INFO L225 Difference]: With dead ends: 56 [2018-11-23 03:28:30,202 INFO L226 Difference]: Without dead ends: 54 [2018-11-23 03:28:30,203 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-23 03:28:30,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-23 03:28:30,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2018-11-23 03:28:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-23 03:28:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2018-11-23 03:28:30,210 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 19 [2018-11-23 03:28:30,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:28:30,211 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2018-11-23 03:28:30,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:28:30,211 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2018-11-23 03:28:30,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 03:28:30,212 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:28:30,212 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:28:30,212 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:28:30,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:28:30,212 INFO L82 PathProgramCache]: Analyzing trace with hash -578756744, now seen corresponding path program 1 times [2018-11-23 03:28:30,212 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:28:30,213 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 03:28:30,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:28:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:28:30,265 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:28:30,269 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 03:28:30,269 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:30,274 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:30,274 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 03:28:30,293 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:30,296 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:30,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 03:28:30,297 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:30,332 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:30,341 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:30,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 31 [2018-11-23 03:28:30,391 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-23 03:28:30,398 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:30,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-11-23 03:28:30,403 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:30,414 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:30,441 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 35 [2018-11-23 03:28:30,445 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-23 03:28:30,445 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:30,454 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:30,460 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:30,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:30,473 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:55, output treesize:13 [2018-11-23 03:28:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:28:30,513 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:28:30,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:28:30,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:28:30,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:28:30,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:28:30,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:28:30,515 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 6 states. [2018-11-23 03:28:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:28:32,754 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2018-11-23 03:28:32,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 03:28:32,754 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-23 03:28:32,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:28:32,755 INFO L225 Difference]: With dead ends: 85 [2018-11-23 03:28:32,755 INFO L226 Difference]: Without dead ends: 64 [2018-11-23 03:28:32,756 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 03:28:32,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-23 03:28:32,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 40. [2018-11-23 03:28:32,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 03:28:32,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2018-11-23 03:28:32,763 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 52 transitions. Word has length 19 [2018-11-23 03:28:32,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:28:32,763 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 52 transitions. [2018-11-23 03:28:32,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:28:32,763 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2018-11-23 03:28:32,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 03:28:32,764 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:28:32,764 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:28:32,765 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:28:32,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:28:32,765 INFO L82 PathProgramCache]: Analyzing trace with hash -136924401, now seen corresponding path program 1 times [2018-11-23 03:28:32,765 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:28:32,765 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 03:28:32,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:28:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:28:32,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:28:32,829 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-23 03:28:32,832 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-23 03:28:32,836 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:32,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-23 03:28:32,840 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:32,844 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:32,846 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:32,851 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:32,852 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:28, output treesize:13 [2018-11-23 03:28:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:28:32,880 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:28:32,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:28:32,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:28:32,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:28:32,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:28:32,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:28:32,882 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand 6 states. [2018-11-23 03:28:36,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:28:36,144 INFO L93 Difference]: Finished difference Result 100 states and 132 transitions. [2018-11-23 03:28:36,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 03:28:36,145 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-23 03:28:36,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:28:36,146 INFO L225 Difference]: With dead ends: 100 [2018-11-23 03:28:36,146 INFO L226 Difference]: Without dead ends: 83 [2018-11-23 03:28:36,146 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-23 03:28:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-23 03:28:36,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 46. [2018-11-23 03:28:36,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-23 03:28:36,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2018-11-23 03:28:36,155 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 20 [2018-11-23 03:28:36,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:28:36,155 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2018-11-23 03:28:36,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:28:36,155 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2018-11-23 03:28:36,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 03:28:36,157 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:28:36,157 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:28:36,157 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:28:36,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:28:36,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1638082961, now seen corresponding path program 1 times [2018-11-23 03:28:36,158 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:28:36,158 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 03:28:36,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:28:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:28:36,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:28:36,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:28:36,200 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:28:36,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:28:36,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 03:28:36,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 03:28:36,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 03:28:36,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 03:28:36,204 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. Second operand 4 states. [2018-11-23 03:28:36,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:28:36,237 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2018-11-23 03:28:36,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 03:28:36,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-23 03:28:36,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:28:36,238 INFO L225 Difference]: With dead ends: 68 [2018-11-23 03:28:36,238 INFO L226 Difference]: Without dead ends: 51 [2018-11-23 03:28:36,238 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 03:28:36,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-23 03:28:36,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2018-11-23 03:28:36,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-23 03:28:36,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2018-11-23 03:28:36,245 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 20 [2018-11-23 03:28:36,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:28:36,246 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2018-11-23 03:28:36,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 03:28:36,246 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2018-11-23 03:28:36,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 03:28:36,246 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:28:36,246 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:28:36,247 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:28:36,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:28:36,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1639930003, now seen corresponding path program 1 times [2018-11-23 03:28:36,247 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:28:36,247 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/bin-2019/utaipan/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 03:28:36,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:28:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:28:36,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:28:36,332 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 03:28:36,334 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-23 03:28:36,335 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:36,337 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:36,351 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 03:28:36,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-23 03:28:36,354 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:36,357 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:36,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:36,365 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2018-11-23 03:28:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:28:36,409 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:28:36,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:28:36,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:28:36,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:28:36,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:28:36,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:28:36,412 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand 6 states. [2018-11-23 03:28:39,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:28:39,302 INFO L93 Difference]: Finished difference Result 86 states and 109 transitions. [2018-11-23 03:28:39,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 03:28:39,303 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-23 03:28:39,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:28:39,304 INFO L225 Difference]: With dead ends: 86 [2018-11-23 03:28:39,304 INFO L226 Difference]: Without dead ends: 84 [2018-11-23 03:28:39,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-23 03:28:39,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-11-23 03:28:39,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 55. [2018-11-23 03:28:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-23 03:28:39,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2018-11-23 03:28:39,313 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 20 [2018-11-23 03:28:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:28:39,313 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2018-11-23 03:28:39,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:28:39,313 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2018-11-23 03:28:39,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 03:28:39,314 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:28:39,314 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:28:39,314 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:28:39,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:28:39,314 INFO L82 PathProgramCache]: Analyzing trace with hash -2073612015, now seen corresponding path program 1 times [2018-11-23 03:28:39,315 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:28:39,315 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cce406e-c99d-49e5-92e0-0eb6d0f57746/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 [2018-11-23 03:28:39,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:28:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:28:39,398 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:28:39,406 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 03:28:39,407 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,410 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,410 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 03:28:39,438 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:39,451 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:39,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-23 03:28:39,452 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,568 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 03:28:39,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-23 03:28:39,575 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-23 03:28:39,633 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 03:28:39,633 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,648 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,661 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,705 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 03:28:39,709 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-11-23 03:28:39,709 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,728 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-23 03:28:39,732 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 03:28:39,732 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,741 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,747 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,767 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:39,768 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:84, output treesize:67 [2018-11-23 03:28:39,895 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:39,928 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:39,965 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:39,965 INFO L303 Elim1Store]: Index analysis took 131 ms [2018-11-23 03:28:39,966 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-11-23 03:28:39,967 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:40,304 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 50 [2018-11-23 03:28:40,317 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:40,322 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 03:28:40,323 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:40,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2018-11-23 03:28:40,459 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 03:28:40,459 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:40,496 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:40,524 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:40,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 71 [2018-11-23 03:28:40,630 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:40,632 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 72 [2018-11-23 03:28:40,632 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:40,715 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 81 [2018-11-23 03:28:40,723 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 03:28:40,724 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:40,755 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:40,781 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:40,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:40,830 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:130, output treesize:106 [2018-11-23 03:28:41,339 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:41,694 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:42,043 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:42,044 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:28:42,045 INFO L303 Elim1Store]: Index analysis took 1156 ms [2018-11-23 03:28:42,045 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 55 [2018-11-23 03:28:42,046 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:46,079 INFO L303 Elim1Store]: Index analysis took 1422 ms [2018-11-23 03:28:46,080 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 84 [2018-11-23 03:28:46,134 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:46,274 INFO L303 Elim1Store]: Index analysis took 193 ms [2018-11-23 03:28:46,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2018-11-23 03:28:46,275 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:46,803 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:48,382 INFO L303 Elim1Store]: Index analysis took 433 ms [2018-11-23 03:28:48,383 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 85 [2018-11-23 03:28:48,432 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:48,433 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 31 [2018-11-23 03:28:48,433 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:49,142 INFO L303 Elim1Store]: Index analysis took 472 ms [2018-11-23 03:28:49,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 109 [2018-11-23 03:28:49,155 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 03:28:49,155 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:49,269 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:49,341 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:49,571 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:49,587 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:49,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 142 [2018-11-23 03:28:49,832 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:49,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2018-11-23 03:28:49,848 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:49,850 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:49,852 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:49,863 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-23 03:28:49,864 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:49,891 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:50,012 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 148 [2018-11-23 03:28:50,021 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 03:28:50,021 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:50,074 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:50,128 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:28:50,218 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:50,218 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 7 variables, input treesize:282, output treesize:192 [2018-11-23 03:28:50,407 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-23 03:28:50,408 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 03:28:50,597 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 131 [2018-11-23 03:28:50,612 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:28:50,615 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 32 [2018-11-23 03:28:50,616 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:50,655 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 50 [2018-11-23 03:28:50,657 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:50,695 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:50,739 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:50,739 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:660, output treesize:68 [2018-11-23 03:28:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:28:50,867 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 03:28:51,015 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:51,121 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:51,956 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:52,035 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:52,681 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:52,724 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:52,965 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:53,018 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 03:28:53,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-11-23 03:28:53,172 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:301, output treesize:281 [2018-11-23 03:29:00,754 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_6 (_ BitVec 32)) (v_prenex_10 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32)) (v_prenex_8 (_ BitVec 32)) (|v_main_#t~malloc9.base_2| (_ BitVec 32))) (or (not (= (select (store |c_#valid| v_prenex_8 (_ bv1 1)) |v_main_#t~malloc9.base_2|) (_ bv0 1))) (= (_ bv0 32) (let ((.cse3 (bvadd v_prenex_9 (_ bv8 32))) (.cse4 (bvadd v_prenex_9 (_ bv4 32)))) (let ((.cse0 (let ((.cse6 (let ((.cse7 (store |c_#memory_$Pointer$.offset| c_main_~x~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~x~0.base) c_main_~x~0.offset v_prenex_10)))) (store .cse7 v_prenex_8 (store (store (store (select .cse7 v_prenex_8) v_prenex_9 (_ bv0 32)) .cse3 v_DerPreprocessor_6) .cse4 (_ bv0 32)))))) (store .cse6 |v_main_#t~malloc9.base_2| (store (select .cse6 |v_main_#t~malloc9.base_2|) (_ bv0 32) (_ bv0 32))))) (.cse5 (bvadd c_main_~head~0.offset (_ bv4 32)))) (select (select .cse0 (select (select (let ((.cse1 (let ((.cse2 (store |c_#memory_$Pointer$.base| c_main_~x~0.base (store (select |c_#memory_$Pointer$.base| c_main_~x~0.base) c_main_~x~0.offset v_prenex_8)))) (store .cse2 v_prenex_8 (store (store (store (select .cse2 v_prenex_8) v_prenex_9 (_ bv0 32)) .cse3 v_DerPreprocessor_10) .cse4 |v_main_#t~malloc9.base_2|))))) (store .cse1 |v_main_#t~malloc9.base_2| (store (select .cse1 |v_main_#t~malloc9.base_2|) (_ bv0 32) (_ bv0 32)))) c_main_~head~0.base) .cse5)) (select (select .cse0 c_main_~head~0.base) .cse5))))) (not (= (select |c_#valid| v_prenex_8) (_ bv0 1))))) (forall ((v_main_~x~0.offset_22 (_ BitVec 32)) (|v_main_#t~malloc6.base_2| (_ BitVec 32)) (|v_main_#t~malloc6.offset_2| (_ BitVec 32)) (v_prenex_7 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (or (not (= (select (store |c_#valid| |v_main_#t~malloc6.base_2| (_ bv1 1)) v_prenex_7) (_ bv0 1))) (not (= (select |c_#valid| |v_main_#t~malloc6.base_2|) (_ bv0 1))) (= (_ bv0 32) (let ((.cse12 (bvadd v_main_~x~0.offset_22 (_ bv8 32))) (.cse13 (bvadd v_main_~x~0.offset_22 (_ bv4 32))) (.cse9 (bvadd c_main_~head~0.offset (_ bv4 32)))) (select (let ((.cse8 (let ((.cse10 (let ((.cse11 (store |c_#memory_$Pointer$.base| c_main_~x~0.base (store (select |c_#memory_$Pointer$.base| c_main_~x~0.base) c_main_~x~0.offset |v_main_#t~malloc6.base_2|)))) (store .cse11 |v_main_#t~malloc6.base_2| (store (store (store (select .cse11 |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) .cse12 v_DerPreprocessor_8) .cse13 v_prenex_7))))) (store .cse10 v_prenex_7 (store (select .cse10 v_prenex_7) (_ bv0 32) (_ bv0 32)))))) (select .cse8 (select (select .cse8 c_main_~head~0.base) .cse9))) (select (select (let ((.cse14 (let ((.cse15 (store |c_#memory_$Pointer$.offset| c_main_~x~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~x~0.base) c_main_~x~0.offset |v_main_#t~malloc6.offset_2|)))) (store .cse15 |v_main_#t~malloc6.base_2| (store (store (store (select .cse15 |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) .cse12 v_DerPreprocessor_12) .cse13 (_ bv0 32)))))) (store .cse14 v_prenex_7 (store (select .cse14 v_prenex_7) (_ bv0 32) (_ bv0 32)))) c_main_~head~0.base) .cse9))))))) is different from false [2018-11-23 03:29:02,860 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((v_main_~x~0.offset_22 (_ BitVec 32)) (|v_main_#t~malloc6.base_2| (_ BitVec 32)) (|v_main_#t~malloc6.offset_2| (_ BitVec 32)) (v_prenex_7 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (or (not (= (select (store |c_#valid| |v_main_#t~malloc6.base_2| (_ bv1 1)) v_prenex_7) (_ bv0 1))) (= (_ bv0 32) (let ((.cse4 (bvadd v_main_~x~0.offset_22 (_ bv8 32))) (.cse5 (bvadd v_main_~x~0.offset_22 (_ bv4 32))) (.cse1 (bvadd c_main_~head~0.offset (_ bv4 32)))) (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$.base| c_main_~head~0.base (store (select |c_#memory_$Pointer$.base| c_main_~head~0.base) c_main_~head~0.offset |v_main_#t~malloc6.base_2|)))) (store .cse3 |v_main_#t~malloc6.base_2| (store (store (store (select .cse3 |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) .cse4 v_DerPreprocessor_8) .cse5 v_prenex_7))))) (store .cse2 v_prenex_7 (store (select .cse2 v_prenex_7) (_ bv0 32) (_ bv0 32)))))) (select .cse0 (select (select .cse0 c_main_~head~0.base) .cse1))) (select (select (let ((.cse6 (let ((.cse7 (store |c_#memory_$Pointer$.offset| c_main_~head~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~head~0.base) c_main_~head~0.offset |v_main_#t~malloc6.offset_2|)))) (store .cse7 |v_main_#t~malloc6.base_2| (store (store (store (select .cse7 |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) .cse4 v_DerPreprocessor_12) .cse5 (_ bv0 32)))))) (store .cse6 v_prenex_7 (store (select .cse6 v_prenex_7) (_ bv0 32) (_ bv0 32)))) c_main_~head~0.base) .cse1)))) (not (= (select |c_#valid| |v_main_#t~malloc6.base_2|) (_ bv0 1))))) (forall ((v_DerPreprocessor_6 (_ BitVec 32)) (v_prenex_10 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32)) (v_prenex_8 (_ BitVec 32)) (|v_main_#t~malloc9.base_2| (_ BitVec 32))) (or (= (let ((.cse11 (bvadd v_prenex_9 (_ bv8 32))) (.cse12 (bvadd v_prenex_9 (_ bv4 32)))) (let ((.cse8 (let ((.cse14 (let ((.cse15 (store |c_#memory_$Pointer$.offset| c_main_~head~0.base (store (select |c_#memory_$Pointer$.offset| c_main_~head~0.base) c_main_~head~0.offset v_prenex_10)))) (store .cse15 v_prenex_8 (store (store (store (select .cse15 v_prenex_8) v_prenex_9 (_ bv0 32)) .cse11 v_DerPreprocessor_6) .cse12 (_ bv0 32)))))) (store .cse14 |v_main_#t~malloc9.base_2| (store (select .cse14 |v_main_#t~malloc9.base_2|) (_ bv0 32) (_ bv0 32))))) (.cse13 (bvadd c_main_~head~0.offset (_ bv4 32)))) (select (select .cse8 (select (select (let ((.cse9 (let ((.cse10 (store |c_#memory_$Pointer$.base| c_main_~head~0.base (store (select |c_#memory_$Pointer$.base| c_main_~head~0.base) c_main_~head~0.offset v_prenex_8)))) (store .cse10 v_prenex_8 (store (store (store (select .cse10 v_prenex_8) v_prenex_9 (_ bv0 32)) .cse11 v_DerPreprocessor_10) .cse12 |v_main_#t~malloc9.base_2|))))) (store .cse9 |v_main_#t~malloc9.base_2| (store (select .cse9 |v_main_#t~malloc9.base_2|) (_ bv0 32) (_ bv0 32)))) c_main_~head~0.base) .cse13)) (select (select .cse8 c_main_~head~0.base) .cse13)))) (_ bv0 32)) (not (= (select (store |c_#valid| v_prenex_8 (_ bv1 1)) |v_main_#t~malloc9.base_2|) (_ bv0 1))) (not (= (select |c_#valid| v_prenex_8) (_ bv0 1)))))) is different from false [2018-11-23 03:29:03,249 INFO L303 Elim1Store]: Index analysis took 107 ms [2018-11-23 03:29:03,249 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 947 treesize of output 638 [2018-11-23 03:29:03,281 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-11-23 03:29:03,281 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:03,908 INFO L303 Elim1Store]: Index analysis took 174 ms [2018-11-23 03:29:04,249 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 610 treesize of output 508 [2018-11-23 03:29:04,691 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 493 treesize of output 501 [2018-11-23 03:29:04,691 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-23 03:29:07,485 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 494 treesize of output 493 [2018-11-23 03:29:07,486 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:10,086 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 490 treesize of output 433 [2018-11-23 03:29:10,843 WARN L180 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-11-23 03:29:10,859 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:10,872 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2018-11-23 03:29:10,872 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:10,992 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:10,992 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:10,993 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:11,052 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 380 [2018-11-23 03:29:11,781 WARN L180 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-11-23 03:29:11,790 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-23 03:29:11,802 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:11,811 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 31 [2018-11-23 03:29:11,824 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:11,824 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:11,825 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:11,831 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:11,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 53 [2018-11-23 03:29:11,839 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:11,912 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:29:11,962 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:29:12,054 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,054 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,055 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,055 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,076 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,077 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,150 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 389 treesize of output 419 [2018-11-23 03:29:12,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-11-23 03:29:12,166 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:12,271 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,272 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,273 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,273 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,273 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,279 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,280 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,340 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 372 treesize of output 397 [2018-11-23 03:29:12,451 INFO L303 Elim1Store]: Index analysis took 108 ms [2018-11-23 03:29:12,588 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 388 treesize of output 720 [2018-11-23 03:29:12,592 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:12,834 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,835 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,908 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:12,959 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:13,043 INFO L303 Elim1Store]: Index analysis took 278 ms [2018-11-23 03:29:13,308 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 366 treesize of output 997 [2018-11-23 03:29:13,310 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-11-23 03:29:13,604 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 335 [2018-11-23 03:29:13,604 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:13,613 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 649 treesize of output 643 [2018-11-23 03:29:13,613 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:13,796 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:13,798 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:13,799 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 53 [2018-11-23 03:29:13,800 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:13,980 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:13,980 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:13,981 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:13,981 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:13,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 42 [2018-11-23 03:29:13,988 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:14,130 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-11-23 03:29:14,130 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:14,260 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:14,261 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:14,264 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:14,274 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 335 [2018-11-23 03:29:14,275 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:14,282 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:14,282 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:14,286 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:14,297 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 643 treesize of output 643 [2018-11-23 03:29:14,297 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:14,402 INFO L267 ElimStorePlain]: Start of recursive call 15: 7 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 03:29:14,490 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-23 03:29:14,575 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-23 03:29:14,725 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-23 03:29:14,738 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:14,739 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 494 treesize of output 440 [2018-11-23 03:29:15,231 WARN L180 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-11-23 03:29:15,241 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:15,248 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:15,270 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:15,271 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 40 [2018-11-23 03:29:15,272 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:15,384 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 03:29:15,389 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:15,390 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:15,391 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2018-11-23 03:29:15,392 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:15,396 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:29:15,406 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:29:17,296 INFO L303 Elim1Store]: Index analysis took 331 ms [2018-11-23 03:29:17,650 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 490 treesize of output 450 [2018-11-23 03:29:19,319 WARN L180 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 146 [2018-11-23 03:29:19,351 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:19,351 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:19,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 403 treesize of output 418 [2018-11-23 03:29:19,353 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:19,355 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-23 03:29:19,355 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:19,373 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:19,374 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:19,375 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 797 treesize of output 812 [2018-11-23 03:29:19,375 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:20,446 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:20,451 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:20,463 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:20,464 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:20,465 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 425 treesize of output 446 [2018-11-23 03:29:20,466 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:20,898 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:20,919 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:20,920 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:20,920 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:21,045 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:21,308 INFO L303 Elim1Store]: Index analysis took 440 ms [2018-11-23 03:29:21,309 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 401 treesize of output 411 [2018-11-23 03:29:22,161 WARN L180 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-11-23 03:29:22,289 INFO L303 Elim1Store]: Index analysis took 127 ms [2018-11-23 03:29:22,302 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 387 treesize of output 393 [2018-11-23 03:29:22,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 03:29:22,313 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:22,573 INFO L303 Elim1Store]: Index analysis took 138 ms [2018-11-23 03:29:22,686 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 379 treesize of output 396 [2018-11-23 03:29:22,724 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:22,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 401 treesize of output 408 [2018-11-23 03:29:22,863 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:22,874 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:22,928 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:22,963 INFO L303 Elim1Store]: Index analysis took 114 ms [2018-11-23 03:29:23,073 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 403 treesize of output 415 [2018-11-23 03:29:23,095 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:23,096 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:23,098 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:23,099 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:23,259 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 406 treesize of output 422 [2018-11-23 03:29:26,951 WARN L180 SmtUtils]: Spent 3.69 s on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-11-23 03:29:26,961 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:26,972 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:26,972 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:27,024 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 371 treesize of output 968 [2018-11-23 03:29:27,024 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:27,495 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:27,496 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:27,497 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:27,498 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:27,500 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:27,501 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:27,672 INFO L303 Elim1Store]: Index analysis took 186 ms [2018-11-23 03:29:27,673 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 349 [2018-11-23 03:29:27,673 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:28,143 INFO L267 ElimStorePlain]: Start of recursive call 40: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 03:29:28,577 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:28,578 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:28,586 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:28,587 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:28,595 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:28,621 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:28,651 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:28,672 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:28,681 INFO L303 Elim1Store]: Index analysis took 135 ms [2018-11-23 03:29:28,861 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 382 treesize of output 423 [2018-11-23 03:29:34,066 WARN L180 SmtUtils]: Spent 5.20 s on a formula simplification. DAG size of input: 121 DAG size of output: 105 [2018-11-23 03:29:34,129 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,130 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,130 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,131 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,131 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,139 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:34,214 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,214 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,260 INFO L303 Elim1Store]: Index analysis took 192 ms [2018-11-23 03:29:34,327 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 674 treesize of output 1311 [2018-11-23 03:29:34,328 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 2 xjuncts. [2018-11-23 03:29:34,411 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,412 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,412 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,412 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,413 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,420 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:34,510 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,511 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:34,536 INFO L303 Elim1Store]: Index analysis took 206 ms [2018-11-23 03:29:34,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 366 treesize of output 1010 [2018-11-23 03:29:34,707 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 4 xjuncts. [2018-11-23 03:29:35,918 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:35,919 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:35,921 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:35,938 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:35,939 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:35,940 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:35,973 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:35,973 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:36,027 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:36,028 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:36,060 INFO L303 Elim1Store]: Index analysis took 202 ms [2018-11-23 03:29:36,238 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 352 treesize of output 1307 [2018-11-23 03:29:36,240 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 4 xjuncts. [2018-11-23 03:29:37,291 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,292 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,293 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,302 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,303 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,316 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:37,317 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,428 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 374 [2018-11-23 03:29:37,428 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 2 xjuncts. [2018-11-23 03:29:37,480 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,524 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,525 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,527 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,537 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,538 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,564 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:37,565 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:37,675 INFO L303 Elim1Store]: Index analysis took 245 ms [2018-11-23 03:29:37,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 668 treesize of output 1608 [2018-11-23 03:29:37,842 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 4 xjuncts. [2018-11-23 03:29:41,620 INFO L267 ElimStorePlain]: Start of recursive call 43: 3 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-11-23 03:29:43,281 INFO L267 ElimStorePlain]: Start of recursive call 39: 2 dim-1 vars, End of recursive call: and 9 xjuncts. [2018-11-23 03:29:46,158 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:46,159 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:46,172 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:46,346 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 383 treesize of output 400 [2018-11-23 03:29:46,359 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:46,359 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:46,360 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:46,363 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:46,378 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:46,380 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 393 treesize of output 404 [2018-11-23 03:29:47,447 WARN L180 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2018-11-23 03:29:47,460 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:47,461 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:47,461 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:47,462 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:47,462 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:47,468 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:47,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 345 treesize of output 356 [2018-11-23 03:29:47,502 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:47,555 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:47,556 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:47,556 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:47,557 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:47,557 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:47,560 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:47,628 INFO L303 Elim1Store]: Index analysis took 124 ms [2018-11-23 03:29:47,779 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 344 treesize of output 988 [2018-11-23 03:29:47,781 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 4 xjuncts. [2018-11-23 03:29:48,252 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 03:29:48,706 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:48,706 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:48,707 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:48,708 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:48,719 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 378 treesize of output 391 [2018-11-23 03:29:49,639 WARN L180 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2018-11-23 03:29:49,660 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:29:49,661 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:49,662 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 03:29:49,702 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 346 treesize of output 1873 [2018-11-23 03:29:49,702 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-23 03:29:49,792 INFO L267 ElimStorePlain]: Start of recursive call 53: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:29:50,073 INFO L267 ElimStorePlain]: Start of recursive call 49: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 03:29:51,330 INFO L267 ElimStorePlain]: Start of recursive call 38: 2 dim-1 vars, End of recursive call: and 8 xjuncts. [2018-11-23 03:29:52,839 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 03:29:52,840 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store (store (store v_arrayElimCell_52 main_~head~0.offset |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) (bvadd v_main_~x~0.offset_22 (_ bv8 32)) v_DerPreprocessor_8) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:210) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:191) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 03:29:52,842 INFO L168 Benchmark]: Toolchain (without parser) took 88892.66 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 296.2 MB). Free memory was 943.8 MB in the beginning and 907.5 MB in the end (delta: 36.3 MB). Peak memory consumption was 431.3 MB. Max. memory is 11.5 GB. [2018-11-23 03:29:52,842 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:29:52,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2018-11-23 03:29:52,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.94 ms. Allocated memory is still 1.1 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. [2018-11-23 03:29:52,843 INFO L168 Benchmark]: Boogie Preprocessor took 23.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:29:52,843 INFO L168 Benchmark]: RCFGBuilder took 484.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:29:52,843 INFO L168 Benchmark]: TraceAbstraction took 87994.44 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 175.6 MB). Free memory was 1.1 GB in the beginning and 907.5 MB in the end (delta: 154.1 MB). Peak memory consumption was 428.5 MB. Max. memory is 11.5 GB. [2018-11-23 03:29:52,845 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 365.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.94 ms. Allocated memory is still 1.1 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. * Boogie Preprocessor took 23.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 484.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 87994.44 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 175.6 MB). Free memory was 1.1 GB in the beginning and 907.5 MB in the end (delta: 154.1 MB). Peak memory consumption was 428.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store (store (store v_arrayElimCell_52 main_~head~0.offset |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) (bvadd v_main_~x~0.offset_22 (_ bv8 32)) v_DerPreprocessor_8) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store (store (store v_arrayElimCell_52 main_~head~0.offset |v_main_#t~malloc6.base_2|) v_main_~x~0.offset_22 (_ bv0 32)) (bvadd v_main_~x~0.offset_22 (_ bv8 32)) v_DerPreprocessor_8): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...