./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_remove_all_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_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_remove_all_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 2bb752e40b61404db64f5779eae1f3ed9be1fbd7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_remove_all_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 2bb752e40b61404db64f5779eae1f3ed9be1fbd7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 02:19:54,002 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:19:54,004 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:19:54,012 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:19:54,013 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:19:54,013 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:19:54,014 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:19:54,015 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:19:54,017 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:19:54,017 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:19:54,018 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:19:54,018 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:19:54,019 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:19:54,019 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:19:54,020 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:19:54,021 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:19:54,021 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:19:54,023 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:19:54,024 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:19:54,025 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:19:54,026 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:19:54,027 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:19:54,029 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:19:54,029 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:19:54,029 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:19:54,030 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:19:54,030 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:19:54,031 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:19:54,031 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:19:54,032 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:19:54,033 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:19:54,034 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:19:54,034 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:19:54,034 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:19:54,035 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:19:54,035 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:19:54,035 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 02:19:54,045 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:19:54,045 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:19:54,046 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:19:54,046 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:19:54,046 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 02:19:54,047 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 02:19:54,047 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 02:19:54,047 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 02:19:54,047 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 02:19:54,047 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 02:19:54,047 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 02:19:54,047 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 02:19:54,047 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 02:19:54,048 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:19:54,048 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:19:54,048 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:19:54,048 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:19:54,048 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:19:54,050 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:19:54,050 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:19:54,050 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:19:54,050 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:19:54,050 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:19:54,050 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:19:54,050 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:19:54,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:19:54,050 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:19:54,051 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:19:54,051 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:19:54,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:19:54,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:19:54,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:19:54,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:19:54,051 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 02:19:54,052 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:19:54,052 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 02:19:54,052 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 02:19:54,052 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_3dfd238f-5704-402d-9776-e22c303e1ec7/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 -> 2bb752e40b61404db64f5779eae1f3ed9be1fbd7 [2018-11-23 02:19:54,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:19:54,081 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:19:54,084 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:19:54,085 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:19:54,085 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:19:54,085 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/../../sv-benchmarks/c/list-simple/dll2n_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 02:19:54,120 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/data/badf4a6a3/34db17c61ef24b6ca7fa1157c3b322eb/FLAG6ae40d9fa [2018-11-23 02:19:54,560 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:19:54,561 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/sv-benchmarks/c/list-simple/dll2n_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 02:19:54,569 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/data/badf4a6a3/34db17c61ef24b6ca7fa1157c3b322eb/FLAG6ae40d9fa [2018-11-23 02:19:54,578 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/data/badf4a6a3/34db17c61ef24b6ca7fa1157c3b322eb [2018-11-23 02:19:54,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:19:54,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:19:54,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:19:54,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:19:54,584 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:19:54,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97dd10c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54, skipping insertion in model container [2018-11-23 02:19:54,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:19:54,619 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:19:54,810 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:19:54,817 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:19:54,894 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:19:54,920 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:19:54,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54 WrapperNode [2018-11-23 02:19:54,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:19:54,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:19:54,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:19:54,921 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:19:54,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:19:54,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:19:54,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:19:54,941 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:19:54,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (1/1) ... [2018-11-23 02:19:54,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:19:54,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:19:54,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:19:54,960 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:19:54,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 02:19:54,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 02:19:54,992 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 02:19:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-23 02:19:54,992 INFO L130 BoogieDeclarations]: Found specification of procedure dll_remove_first [2018-11-23 02:19:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_remove_first [2018-11-23 02:19:54,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 02:19:54,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:19:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:19:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:19:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:19:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 02:19:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 02:19:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 02:19:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 02:19:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2018-11-23 02:19:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2018-11-23 02:19:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:19:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:19:55,180 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:19:55,181 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 02:19:55,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:55 BoogieIcfgContainer [2018-11-23 02:19:55,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:19:55,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:19:55,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:19:55,184 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:19:55,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:19:54" (1/3) ... [2018-11-23 02:19:55,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa42513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:55, skipping insertion in model container [2018-11-23 02:19:55,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:54" (2/3) ... [2018-11-23 02:19:55,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa42513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:55, skipping insertion in model container [2018-11-23 02:19:55,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:55" (3/3) ... [2018-11-23 02:19:55,186 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 02:19:55,192 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:19:55,197 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 02:19:55,206 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 02:19:55,225 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:19:55,225 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:19:55,225 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:19:55,225 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:19:55,225 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:19:55,225 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:19:55,226 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:19:55,226 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:19:55,236 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-23 02:19:55,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 02:19:55,241 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:19:55,241 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:19:55,243 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:19:55,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:19:55,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1142562166, now seen corresponding path program 1 times [2018-11-23 02:19:55,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:19:55,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:55,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:19:55,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:55,281 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:19:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:19:55,339 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 02:19:55,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:19:55,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 02:19:55,341 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:19:55,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 02:19:55,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 02:19:55,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 02:19:55,355 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-23 02:19:55,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:19:55,368 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-23 02:19:55,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 02:19:55,369 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-23 02:19:55,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:19:55,375 INFO L225 Difference]: With dead ends: 56 [2018-11-23 02:19:55,375 INFO L226 Difference]: Without dead ends: 29 [2018-11-23 02:19:55,378 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 02:19:55,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-23 02:19:55,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-23 02:19:55,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-23 02:19:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-11-23 02:19:55,400 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 17 [2018-11-23 02:19:55,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:19:55,401 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-11-23 02:19:55,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 02:19:55,401 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-11-23 02:19:55,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 02:19:55,401 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:19:55,401 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:19:55,401 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:19:55,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:19:55,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1124458595, now seen corresponding path program 1 times [2018-11-23 02:19:55,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:19:55,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:55,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:19:55,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:55,403 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:19:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:19:55,446 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 02:19:55,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:19:55,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 02:19:55,446 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:19:55,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 02:19:55,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 02:19:55,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 02:19:55,447 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 4 states. [2018-11-23 02:19:55,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:19:55,506 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-11-23 02:19:55,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 02:19:55,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-23 02:19:55,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:19:55,507 INFO L225 Difference]: With dead ends: 36 [2018-11-23 02:19:55,507 INFO L226 Difference]: Without dead ends: 32 [2018-11-23 02:19:55,508 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 02:19:55,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-23 02:19:55,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2018-11-23 02:19:55,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 02:19:55,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2018-11-23 02:19:55,516 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 17 [2018-11-23 02:19:55,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:19:55,516 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2018-11-23 02:19:55,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 02:19:55,517 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2018-11-23 02:19:55,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 02:19:55,518 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:19:55,518 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, 1, 1, 1, 1] [2018-11-23 02:19:55,518 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:19:55,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:19:55,518 INFO L82 PathProgramCache]: Analyzing trace with hash -2086072823, now seen corresponding path program 1 times [2018-11-23 02:19:55,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:19:55,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:55,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:19:55,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:55,522 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:19:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:19:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 02:19:55,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:19:55,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 02:19:55,568 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:19:55,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 02:19:55,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 02:19:55,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 02:19:55,569 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 5 states. [2018-11-23 02:19:55,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:19:55,602 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2018-11-23 02:19:55,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 02:19:55,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-11-23 02:19:55,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:19:55,603 INFO L225 Difference]: With dead ends: 52 [2018-11-23 02:19:55,603 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 02:19:55,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 02:19:55,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 02:19:55,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2018-11-23 02:19:55,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-23 02:19:55,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-11-23 02:19:55,607 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 25 [2018-11-23 02:19:55,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:19:55,607 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-11-23 02:19:55,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 02:19:55,607 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-11-23 02:19:55,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 02:19:55,608 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:19:55,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:19:55,608 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:19:55,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:19:55,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1975237235, now seen corresponding path program 1 times [2018-11-23 02:19:55,608 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:19:55,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:55,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:19:55,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:55,609 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:19:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:19:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 02:19:55,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:19:55,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 02:19:55,660 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:19:55,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 02:19:55,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 02:19:55,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:19:55,661 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 3 states. [2018-11-23 02:19:55,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:19:55,679 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2018-11-23 02:19:55,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 02:19:55,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-11-23 02:19:55,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:19:55,680 INFO L225 Difference]: With dead ends: 57 [2018-11-23 02:19:55,680 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 02:19:55,680 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 02:19:55,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 02:19:55,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2018-11-23 02:19:55,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-23 02:19:55,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-23 02:19:55,685 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 30 [2018-11-23 02:19:55,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:19:55,685 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-23 02:19:55,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 02:19:55,685 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-23 02:19:55,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 02:19:55,686 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:19:55,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:19:55,686 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:19:55,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:19:55,687 INFO L82 PathProgramCache]: Analyzing trace with hash 286293493, now seen corresponding path program 1 times [2018-11-23 02:19:55,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:19:55,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:55,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:19:55,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:55,688 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:19:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:19:55,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 02:19:55,745 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:19:55,745 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:19:55,746 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-11-23 02:19:55,747 INFO L202 CegarAbsIntRunner]: [5], [6], [7], [14], [16], [22], [24], [29], [31], [35], [36], [40], [42], [48], [50], [53], [57], [60], [63], [66], [69], [73], [74], [77], [78], [79], [81], [82], [83], [84] [2018-11-23 02:19:55,771 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:19:55,771 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:19:55,885 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 02:19:55,886 INFO L272 AbstractInterpreter]: Visited 14 different actions 19 times. Merged at 4 different actions 4 times. Never widened. Performed 185 root evaluator evaluations with a maximum evaluation depth of 3. Performed 185 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 27 variables. [2018-11-23 02:19:55,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:19:55,891 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 02:19:55,951 INFO L227 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 76.98% of their original sizes. [2018-11-23 02:19:55,951 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 02:19:55,993 INFO L415 sIntCurrentIteration]: We unified 29 AI predicates to 29 [2018-11-23 02:19:55,993 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 02:19:55,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 02:19:55,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2018-11-23 02:19:55,994 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:19:55,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 02:19:55,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 02:19:55,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-23 02:19:55,995 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 9 states. [2018-11-23 02:19:56,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:19:56,297 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2018-11-23 02:19:56,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 02:19:56,297 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-23 02:19:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:19:56,298 INFO L225 Difference]: With dead ends: 57 [2018-11-23 02:19:56,298 INFO L226 Difference]: Without dead ends: 40 [2018-11-23 02:19:56,298 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-11-23 02:19:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-23 02:19:56,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-11-23 02:19:56,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-23 02:19:56,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-11-23 02:19:56,303 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 30 [2018-11-23 02:19:56,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:19:56,304 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-11-23 02:19:56,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 02:19:56,304 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-11-23 02:19:56,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 02:19:56,304 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:19:56,305 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:19:56,305 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:19:56,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:19:56,305 INFO L82 PathProgramCache]: Analyzing trace with hash 760831495, now seen corresponding path program 1 times [2018-11-23 02:19:56,305 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:19:56,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:56,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:19:56,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:56,307 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:19:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:19:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 02:19:56,374 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:19:56,374 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:19:56,375 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2018-11-23 02:19:56,375 INFO L202 CegarAbsIntRunner]: [5], [6], [7], [14], [16], [22], [24], [27], [29], [31], [35], [36], [40], [42], [48], [50], [53], [57], [60], [63], [66], [69], [73], [74], [77], [78], [79], [81], [82], [83], [84] [2018-11-23 02:19:56,377 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:19:56,377 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:19:56,444 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:19:56,445 INFO L272 AbstractInterpreter]: Visited 31 different actions 63 times. Merged at 8 different actions 16 times. Never widened. Performed 543 root evaluator evaluations with a maximum evaluation depth of 3. Performed 543 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 27 variables. [2018-11-23 02:19:56,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:19:56,465 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:19:56,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:19:56,466 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 02:19:56,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:19:56,482 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:19:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:19:56,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:19:56,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 02:19:56,529 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:19:56,587 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 02:19:56,602 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:19:56,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2018-11-23 02:19:56,602 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:19:56,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 02:19:56,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 02:19:56,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 02:19:56,603 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 5 states. [2018-11-23 02:19:56,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:19:56,630 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2018-11-23 02:19:56,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 02:19:56,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-23 02:19:56,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:19:56,631 INFO L225 Difference]: With dead ends: 46 [2018-11-23 02:19:56,631 INFO L226 Difference]: Without dead ends: 42 [2018-11-23 02:19:56,632 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 02:19:56,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-23 02:19:56,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-23 02:19:56,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-23 02:19:56,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2018-11-23 02:19:56,637 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 35 [2018-11-23 02:19:56,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:19:56,638 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2018-11-23 02:19:56,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 02:19:56,638 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2018-11-23 02:19:56,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 02:19:56,639 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:19:56,640 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:19:56,640 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:19:56,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:19:56,640 INFO L82 PathProgramCache]: Analyzing trace with hash -788093011, now seen corresponding path program 2 times [2018-11-23 02:19:56,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:19:56,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:56,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:19:56,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:19:56,642 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:19:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:19:57,744 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 02:19:57,745 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:19:57,745 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:19:57,745 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 02:19:57,745 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 02:19:57,745 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:19:57,745 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 02:19:57,756 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 02:19:57,756 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 02:19:57,820 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 02:19:57,820 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 02:19:57,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:19:57,840 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 02:19:57,841 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 02:19:57,845 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:57,845 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 02:19:57,911 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 18 treesize of output 15 [2018-11-23 02:19:57,912 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 02:19:57,915 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:57,915 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 02:19:57,916 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 02:19:57,920 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:57,923 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:57,933 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 18 treesize of output 15 [2018-11-23 02:19:57,935 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 02:19:57,937 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:57,938 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 02:19:57,939 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 02:19:57,944 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:57,947 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:57,956 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:57,957 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:51, output treesize:51 [2018-11-23 02:19:58,062 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 02:19:58,065 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 02:19:58,087 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 02:19:58,090 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 02:19:58,107 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,111 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 40 treesize of output 41 [2018-11-23 02:19:58,113 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 02:19:58,115 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,116 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 29 [2018-11-23 02:19:58,120 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,121 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,121 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,122 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:19:58,124 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 55 [2018-11-23 02:19:58,124 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,132 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,136 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,143 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,162 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,166 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 40 treesize of output 41 [2018-11-23 02:19:58,168 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 02:19:58,170 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 29 [2018-11-23 02:19:58,175 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,176 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,176 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,179 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 46 [2018-11-23 02:19:58,179 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,185 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,191 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,198 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,215 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,215 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 4 variables, input treesize:122, output treesize:92 [2018-11-23 02:19:58,274 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,276 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:19:58,277 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 68 treesize of output 58 [2018-11-23 02:19:58,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-11-23 02:19:58,281 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,288 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,304 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,306 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,307 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 107 [2018-11-23 02:19:58,317 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-11-23 02:19:58,317 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,327 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,340 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,340 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:154, output treesize:108 [2018-11-23 02:19:58,493 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,494 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,494 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,495 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 22 treesize of output 25 [2018-11-23 02:19:58,495 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,508 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,508 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:116, output treesize:110 [2018-11-23 02:19:58,811 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,812 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:19:58,830 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:19:58,837 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 318 treesize of output 330 [2018-11-23 02:19:58,843 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:19:58,845 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 66 [2018-11-23 02:19:58,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,880 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:19:58,881 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 230 treesize of output 260 [2018-11-23 02:19:58,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 162 [2018-11-23 02:19:58,885 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,904 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,917 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:19:58,948 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,948 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:19:58,950 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:58,960 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 209 [2018-11-23 02:19:58,965 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:19:58,981 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 147 [2018-11-23 02:19:58,983 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 02:19:59,045 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,046 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,050 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,052 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 212 treesize of output 185 [2018-11-23 02:19:59,056 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 164 [2018-11-23 02:19:59,057 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 02:19:59,075 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 02:19:59,080 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,081 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,083 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,085 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,087 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 185 [2018-11-23 02:19:59,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 180 [2018-11-23 02:19:59,092 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 02:19:59,113 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 02:19:59,115 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,116 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,117 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,120 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:19:59,122 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 192 [2018-11-23 02:19:59,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 183 [2018-11-23 02:19:59,126 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 02:19:59,144 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 02:19:59,192 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-23 02:19:59,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-23 02:19:59,246 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 2 variables, input treesize:402, output treesize:455 [2018-11-23 02:19:59,638 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 84 [2018-11-23 02:19:59,764 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 02:19:59,764 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:20:00,979 WARN L180 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-11-23 02:20:01,103 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-11-23 02:20:01,264 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2018-11-23 02:20:01,410 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2018-11-23 02:20:04,492 WARN L180 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 250 DAG size of output: 81 [2018-11-23 02:20:04,693 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 02:20:04,694 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 |v_v_#memory_$Pointer$.offset_5_7| v_dll_create_~head~0.base_16 (let ((.cse0 (select (select |v_#memory_$Pointer$.offset_59| |main_~#s~0.base|) |main_~#s~0.offset|))) (store (store (select |v_v_#memory_$Pointer$.offset_5_7| v_dll_create_~head~0.base_16) (+ .cse0 4) 0) (+ .cse0 8) 0))) 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.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:383) 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 02:20:04,697 INFO L168 Benchmark]: Toolchain (without parser) took 10116.14 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.5 MB). Free memory was 955.5 MB in the beginning and 959.1 MB in the end (delta: -3.6 MB). Peak memory consumption was 308.9 MB. Max. memory is 11.5 GB. [2018-11-23 02:20:04,697 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:20:04,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -194.4 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:20:04,698 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:20:04,698 INFO L168 Benchmark]: Boogie Preprocessor took 18.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 02:20:04,699 INFO L168 Benchmark]: RCFGBuilder took 221.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-11-23 02:20:04,699 INFO L168 Benchmark]: TraceAbstraction took 9514.46 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 146.8 MB). Free memory was 1.1 GB in the beginning and 959.1 MB in the end (delta: 160.3 MB). Peak memory consumption was 307.1 MB. Max. memory is 11.5 GB. [2018-11-23 02:20:04,701 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -194.4 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 221.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9514.46 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 146.8 MB). Free memory was 1.1 GB in the beginning and 959.1 MB in the end (delta: 160.3 MB). Peak memory consumption was 307.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store |v_v_#memory_$Pointer$.offset_5_7| v_dll_create_~head~0.base_16 (let ((.cse0 (select (select |v_#memory_$Pointer$.offset_59| |main_~#s~0.base|) |main_~#s~0.offset|))) (store (store (select |v_v_#memory_$Pointer$.offset_5_7| v_dll_create_~head~0.base_16) (+ .cse0 4) 0) (+ .cse0 8) 0))) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store |v_v_#memory_$Pointer$.offset_5_7| v_dll_create_~head~0.base_16 (let ((.cse0 (select (select |v_#memory_$Pointer$.offset_59| |main_~#s~0.base|) |main_~#s~0.offset|))) (store (store (select |v_v_#memory_$Pointer$.offset_5_7| v_dll_create_~head~0.base_16) (+ .cse0 4) 0) (+ .cse0 8) 0))): 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 02:20:06,140 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:20:06,141 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:20:06,149 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:20:06,149 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:20:06,150 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:20:06,151 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:20:06,152 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:20:06,153 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:20:06,153 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:20:06,154 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:20:06,154 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:20:06,155 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:20:06,155 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:20:06,156 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:20:06,157 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:20:06,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:20:06,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:20:06,160 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:20:06,161 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:20:06,162 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:20:06,162 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:20:06,164 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:20:06,164 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:20:06,164 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:20:06,165 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:20:06,166 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:20:06,166 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:20:06,167 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:20:06,167 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:20:06,168 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:20:06,168 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:20:06,168 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:20:06,168 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:20:06,169 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:20:06,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:20:06,170 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 02:20:06,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:20:06,180 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:20:06,181 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:20:06,181 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:20:06,181 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 02:20:06,181 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 02:20:06,181 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 02:20:06,182 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 02:20:06,182 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 02:20:06,182 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 02:20:06,182 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:20:06,182 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:20:06,183 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:20:06,183 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:20:06,183 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:20:06,183 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:20:06,183 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:20:06,183 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 02:20:06,183 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 02:20:06,184 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:20:06,184 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:20:06,184 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:20:06,184 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:20:06,184 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:20:06,184 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:20:06,184 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:20:06,185 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:20:06,185 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:20:06,185 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:20:06,185 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:20:06,185 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:20:06,185 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 02:20:06,185 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:20:06,185 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 02:20:06,186 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 02:20:06,186 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_3dfd238f-5704-402d-9776-e22c303e1ec7/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 -> 2bb752e40b61404db64f5779eae1f3ed9be1fbd7 [2018-11-23 02:20:06,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:20:06,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:20:06,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:20:06,224 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:20:06,225 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:20:06,225 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/../../sv-benchmarks/c/list-simple/dll2n_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 02:20:06,265 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/data/b771b863e/1a721ebba43f46748eb082806db604d1/FLAGe8ca9293d [2018-11-23 02:20:06,706 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:20:06,706 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/sv-benchmarks/c/list-simple/dll2n_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 02:20:06,712 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/data/b771b863e/1a721ebba43f46748eb082806db604d1/FLAGe8ca9293d [2018-11-23 02:20:06,720 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/data/b771b863e/1a721ebba43f46748eb082806db604d1 [2018-11-23 02:20:06,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:20:06,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:20:06,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:20:06,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:20:06,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:20:06,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:20:06" (1/1) ... [2018-11-23 02:20:06,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59eb357c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:06, skipping insertion in model container [2018-11-23 02:20:06,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:20:06" (1/1) ... [2018-11-23 02:20:06,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:20:06,761 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:20:06,974 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:20:06,982 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:20:07,016 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:20:07,101 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:20:07,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07 WrapperNode [2018-11-23 02:20:07,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:20:07,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:20:07,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:20:07,103 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:20:07,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (1/1) ... [2018-11-23 02:20:07,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (1/1) ... [2018-11-23 02:20:07,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:20:07,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:20:07,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:20:07,126 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:20:07,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (1/1) ... [2018-11-23 02:20:07,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (1/1) ... [2018-11-23 02:20:07,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (1/1) ... [2018-11-23 02:20:07,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (1/1) ... [2018-11-23 02:20:07,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (1/1) ... [2018-11-23 02:20:07,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (1/1) ... [2018-11-23 02:20:07,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (1/1) ... [2018-11-23 02:20:07,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:20:07,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:20:07,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:20:07,151 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:20:07,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 02:20:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 02:20:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 02:20:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-23 02:20:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure dll_remove_first [2018-11-23 02:20:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_remove_first [2018-11-23 02:20:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:20:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:20:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:20:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:20:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 02:20:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 02:20:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 02:20:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 02:20:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 02:20:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2018-11-23 02:20:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2018-11-23 02:20:07,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:20:07,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:20:07,419 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:20:07,419 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 02:20:07,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:20:07 BoogieIcfgContainer [2018-11-23 02:20:07,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:20:07,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:20:07,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:20:07,422 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:20:07,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:20:06" (1/3) ... [2018-11-23 02:20:07,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265e5125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:20:07, skipping insertion in model container [2018-11-23 02:20:07,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:07" (2/3) ... [2018-11-23 02:20:07,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265e5125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:20:07, skipping insertion in model container [2018-11-23 02:20:07,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:20:07" (3/3) ... [2018-11-23 02:20:07,425 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-23 02:20:07,430 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:20:07,435 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 02:20:07,444 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 02:20:07,462 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 02:20:07,462 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:20:07,463 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:20:07,463 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:20:07,463 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:20:07,463 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:20:07,463 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:20:07,463 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:20:07,463 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:20:07,472 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-23 02:20:07,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 02:20:07,476 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:20:07,476 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:20:07,478 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:20:07,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:20:07,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1142562166, now seen corresponding path program 1 times [2018-11-23 02:20:07,483 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 02:20:07,484 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 02:20:07,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:20:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:20:07,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:20:07,567 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 02:20:07,567 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:20:07,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:20:07,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 02:20:07,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 02:20:07,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 02:20:07,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 02:20:07,581 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-23 02:20:07,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:20:07,593 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-23 02:20:07,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 02:20:07,594 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-23 02:20:07,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:20:07,601 INFO L225 Difference]: With dead ends: 56 [2018-11-23 02:20:07,601 INFO L226 Difference]: Without dead ends: 29 [2018-11-23 02:20:07,603 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 02:20:07,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-23 02:20:07,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-23 02:20:07,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-23 02:20:07,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-11-23 02:20:07,626 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 17 [2018-11-23 02:20:07,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:20:07,626 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-11-23 02:20:07,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 02:20:07,627 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-11-23 02:20:07,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 02:20:07,627 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:20:07,627 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:20:07,628 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:20:07,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:20:07,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1124458595, now seen corresponding path program 1 times [2018-11-23 02:20:07,628 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 02:20:07,629 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 02:20:07,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:20:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:20:07,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:20:07,712 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 02:20:07,712 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:20:07,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:20:07,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 02:20:07,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 02:20:07,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 02:20:07,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 02:20:07,719 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 5 states. [2018-11-23 02:20:07,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:20:07,800 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2018-11-23 02:20:07,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 02:20:07,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-23 02:20:07,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:20:07,802 INFO L225 Difference]: With dead ends: 50 [2018-11-23 02:20:07,802 INFO L226 Difference]: Without dead ends: 34 [2018-11-23 02:20:07,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 02:20:07,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-23 02:20:07,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2018-11-23 02:20:07,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 02:20:07,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2018-11-23 02:20:07,809 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 17 [2018-11-23 02:20:07,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:20:07,809 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2018-11-23 02:20:07,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 02:20:07,809 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2018-11-23 02:20:07,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 02:20:07,810 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:20:07,810 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, 1] [2018-11-23 02:20:07,810 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:20:07,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:20:07,811 INFO L82 PathProgramCache]: Analyzing trace with hash 467179213, now seen corresponding path program 1 times [2018-11-23 02:20:07,811 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 02:20:07,811 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 02:20:07,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:20:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:20:07,863 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:20:07,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:20:07,871 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:20:07,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:20:07,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 02:20:07,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 02:20:07,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 02:20:07,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:20:07,873 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 3 states. [2018-11-23 02:20:07,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:20:07,976 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2018-11-23 02:20:07,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 02:20:07,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-11-23 02:20:07,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:20:07,977 INFO L225 Difference]: With dead ends: 55 [2018-11-23 02:20:07,977 INFO L226 Difference]: Without dead ends: 34 [2018-11-23 02:20:07,977 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 02:20:07,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-23 02:20:07,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-11-23 02:20:07,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 02:20:07,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-23 02:20:07,981 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 22 [2018-11-23 02:20:07,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:20:07,981 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-23 02:20:07,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 02:20:07,982 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-23 02:20:07,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 02:20:07,982 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:20:07,982 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, 1] [2018-11-23 02:20:07,982 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:20:07,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:20:07,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1168243791, now seen corresponding path program 1 times [2018-11-23 02:20:07,983 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 02:20:07,983 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 02:20:08,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:20:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:20:08,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:20:08,077 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 02:20:08,077 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:20:08,194 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 02:20:08,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:20:08,196 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 02:20:08,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:20:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:20:08,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:20:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 02:20:08,257 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:20:08,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 02:20:08,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 6] total 10 [2018-11-23 02:20:08,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 02:20:08,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 02:20:08,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-23 02:20:08,278 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 10 states. [2018-11-23 02:20:08,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:20:08,460 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-11-23 02:20:08,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 02:20:08,460 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-23 02:20:08,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:20:08,462 INFO L225 Difference]: With dead ends: 58 [2018-11-23 02:20:08,462 INFO L226 Difference]: Without dead ends: 42 [2018-11-23 02:20:08,462 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-23 02:20:08,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-23 02:20:08,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2018-11-23 02:20:08,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 02:20:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-11-23 02:20:08,470 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 22 [2018-11-23 02:20:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:20:08,471 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-11-23 02:20:08,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 02:20:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-11-23 02:20:08,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 02:20:08,471 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:20:08,472 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:20:08,472 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:20:08,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:20:08,472 INFO L82 PathProgramCache]: Analyzing trace with hash 760831495, now seen corresponding path program 1 times [2018-11-23 02:20:08,473 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 02:20:08,473 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 02:20:08,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:20:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:20:08,553 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:20:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 02:20:08,578 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:20:08,611 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 02:20:08,613 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:20:08,613 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 02:20:08,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:20:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:20:08,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:20:08,669 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 02:20:08,669 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:20:08,736 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 02:20:08,750 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 02:20:08,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 6] total 10 [2018-11-23 02:20:08,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 02:20:08,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 02:20:08,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-23 02:20:08,752 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 10 states. [2018-11-23 02:20:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:20:08,842 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2018-11-23 02:20:08,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 02:20:08,842 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-11-23 02:20:08,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:20:08,843 INFO L225 Difference]: With dead ends: 49 [2018-11-23 02:20:08,843 INFO L226 Difference]: Without dead ends: 45 [2018-11-23 02:20:08,843 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2018-11-23 02:20:08,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-23 02:20:08,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-23 02:20:08,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-23 02:20:08,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2018-11-23 02:20:08,848 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 35 [2018-11-23 02:20:08,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:20:08,849 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2018-11-23 02:20:08,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 02:20:08,849 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2018-11-23 02:20:08,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 02:20:08,850 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:20:08,850 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:20:08,850 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:20:08,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:20:08,850 INFO L82 PathProgramCache]: Analyzing trace with hash -788093011, now seen corresponding path program 2 times [2018-11-23 02:20:08,851 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 02:20:08,851 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/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 02:20:08,862 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 02:20:08,994 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 02:20:08,994 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 02:20:09,023 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:20:09,038 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 02:20:09,040 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,043 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,043 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 02:20:09,101 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 18 treesize of output 15 [2018-11-23 02:20:09,104 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 02:20:09,118 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:09,119 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 02:20:09,119 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,130 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,137 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,160 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 18 treesize of output 15 [2018-11-23 02:20:09,163 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-23 02:20:09,174 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:09,175 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 02:20:09,175 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,181 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,185 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,198 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:51, output treesize:51 [2018-11-23 02:20:09,335 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:09,410 INFO L303 Elim1Store]: Index analysis took 102 ms [2018-11-23 02:20:09,411 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 02:20:09,421 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 02:20:09,422 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,465 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,611 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:09,646 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 02:20:09,652 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 02:20:09,652 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,668 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,722 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:09,737 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2018-11-23 02:20:09,741 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 02:20:09,748 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:09,748 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:09,749 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 36 [2018-11-23 02:20:09,749 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,760 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,776 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,816 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:09,826 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2018-11-23 02:20:09,830 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-23 02:20:09,835 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:09,837 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 02:20:09,838 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,845 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,855 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,883 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,883 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 4 variables, input treesize:122, output treesize:92 [2018-11-23 02:20:09,950 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:09,955 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:09,958 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 130 [2018-11-23 02:20:09,968 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-11-23 02:20:09,969 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:09,999 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:10,035 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:10,041 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:10,042 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 68 treesize of output 58 [2018-11-23 02:20:10,060 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-11-23 02:20:10,060 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:10,074 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:10,102 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:10,102 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:154, output treesize:108 [2018-11-23 02:20:10,347 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:10,348 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:10,349 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:10,350 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 22 treesize of output 21 [2018-11-23 02:20:10,351 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:10,374 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:10,375 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:92 [2018-11-23 02:20:11,255 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:11,294 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:11,484 INFO L303 Elim1Store]: Index analysis took 245 ms [2018-11-23 02:20:11,485 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 392 treesize of output 295 [2018-11-23 02:20:11,526 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:11,541 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:11,655 INFO L303 Elim1Store]: Index analysis took 168 ms [2018-11-23 02:20:11,675 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 179 [2018-11-23 02:20:11,678 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 02:20:12,140 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,144 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,166 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,206 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,219 INFO L303 Elim1Store]: Index analysis took 104 ms [2018-11-23 02:20:12,220 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 300 [2018-11-23 02:20:12,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 313 [2018-11-23 02:20:12,232 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 02:20:12,351 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 02:20:12,379 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,386 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,400 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,441 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,453 INFO L303 Elim1Store]: Index analysis took 101 ms [2018-11-23 02:20:12,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 334 treesize of output 291 [2018-11-23 02:20:12,470 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 347 treesize of output 296 [2018-11-23 02:20:12,471 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 02:20:12,652 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 02:20:12,693 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,706 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,846 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:12,874 INFO L303 Elim1Store]: Index analysis took 221 ms [2018-11-23 02:20:12,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 295 [2018-11-23 02:20:12,883 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 325 treesize of output 276 [2018-11-23 02:20:12,884 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 02:20:13,018 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 02:20:15,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-23 02:20:17,678 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:17,687 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:17,687 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:17,781 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:17,809 INFO L303 Elim1Store]: Index analysis took 147 ms [2018-11-23 02:20:17,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 259 [2018-11-23 02:20:17,821 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:17,821 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:17,822 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 66 [2018-11-23 02:20:17,823 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:17,903 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:17,905 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:17,929 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:17,930 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 182 [2018-11-23 02:20:17,938 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 121 [2018-11-23 02:20:17,938 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:17,977 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:18,017 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:18,035 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,043 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,044 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:18,111 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:18,138 INFO L303 Elim1Store]: Index analysis took 119 ms [2018-11-23 02:20:18,139 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 243 [2018-11-23 02:20:18,144 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,144 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:18,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 66 [2018-11-23 02:20:18,146 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:18,198 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,199 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,210 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:18,212 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 180 [2018-11-23 02:20:18,217 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 119 [2018-11-23 02:20:18,217 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:18,243 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:18,269 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:18,278 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,281 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,284 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,284 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:18,319 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:18,334 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 274 treesize of output 276 [2018-11-23 02:20:18,341 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,342 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:18,343 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 66 [2018-11-23 02:20:18,343 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:18,423 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,425 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:18,438 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:18,439 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 197 [2018-11-23 02:20:18,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 134 [2018-11-23 02:20:18,453 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:18,483 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:18,526 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:18,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-23 02:20:18,704 INFO L202 ElimStorePlain]: Needed 21 recursive calls to eliminate 2 variables, input treesize:402, output treesize:457 [2018-11-23 02:20:19,246 WARN L180 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 82 [2018-11-23 02:20:19,389 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 25 treesize of output 22 [2018-11-23 02:20:19,392 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-23 02:20:19,392 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:19,396 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:19,410 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 22 [2018-11-23 02:20:19,412 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-23 02:20:19,412 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:19,415 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:19,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:19,424 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:51, output treesize:43 [2018-11-23 02:20:19,542 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,544 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,551 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 184 [2018-11-23 02:20:19,560 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,561 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 52 treesize of output 38 [2018-11-23 02:20:19,561 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:19,625 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,625 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:19,626 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 28 treesize of output 23 [2018-11-23 02:20:19,626 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:19,690 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 44 treesize of output 38 [2018-11-23 02:20:19,690 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:19,726 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:19,847 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,849 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,856 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 98 [2018-11-23 02:20:19,860 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-11-23 02:20:19,861 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:19,896 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:19,897 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,900 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,908 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 2 case distinctions, treesize of input 37 treesize of output 47 [2018-11-23 02:20:19,909 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-23 02:20:19,958 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,960 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,961 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,962 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,969 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 55 [2018-11-23 02:20:19,970 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-11-23 02:20:19,974 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,975 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:19,979 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 42 [2018-11-23 02:20:19,980 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,008 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 02:20:20,125 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:20,126 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:20,131 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 167 [2018-11-23 02:20:20,136 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:20,136 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:20,137 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 66 treesize of output 55 [2018-11-23 02:20:20,137 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,203 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:20,204 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:20,204 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 28 treesize of output 27 [2018-11-23 02:20:20,205 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,248 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 54 treesize of output 46 [2018-11-23 02:20:20,249 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,275 INFO L267 ElimStorePlain]: Start of recursive call 11: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,356 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:20,357 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:20,365 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 83 [2018-11-23 02:20:20,369 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:20,370 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:20,371 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:20,375 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 29 treesize of output 35 [2018-11-23 02:20:20,376 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,399 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-23 02:20:20,399 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,413 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:20:20,414 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:20:20,414 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 24 treesize of output 21 [2018-11-23 02:20:20,415 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,423 INFO L267 ElimStorePlain]: Start of recursive call 15: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,461 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 02:20:20,461 INFO L202 ElimStorePlain]: Needed 18 recursive calls to eliminate 7 variables, input treesize:390, output treesize:49 [2018-11-23 02:20:20,557 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 15 treesize of output 11 [2018-11-23 02:20:20,559 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 02:20:20,559 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,566 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 15 treesize of output 11 [2018-11-23 02:20:20,567 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 02:20:20,568 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,569 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,572 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:20,572 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-23 02:20:20,661 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 02:20:20,661 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:20:21,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2018-11-23 02:20:21,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-11-23 02:20:21,236 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:21,245 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:21,247 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 47 treesize of output 45 [2018-11-23 02:20:21,250 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-11-23 02:20:21,251 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:21,260 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:21,262 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 47 treesize of output 45 [2018-11-23 02:20:21,264 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-11-23 02:20:21,265 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 02:20:21,273 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:20:21,523 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-23 02:20:21,524 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:105, output treesize:161 [2018-11-23 02:20:22,323 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-11-23 02:20:22,481 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-11-23 02:20:22,844 WARN L180 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-11-23 02:20:23,117 WARN L180 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-11-23 02:20:29,230 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-11-23 02:20:35,321 WARN L180 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-11-23 02:20:36,754 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-11-23 02:20:42,340 WARN L180 SmtUtils]: Spent 4.45 s on a formula simplification that was a NOOP. DAG size: 97 [2018-11-23 02:20:45,258 WARN L180 SmtUtils]: Spent 2.92 s on a formula simplification that was a NOOP. DAG size: 70 [2018-11-23 02:20:47,577 WARN L180 SmtUtils]: Spent 2.32 s on a formula simplification that was a NOOP. DAG size: 78 [2018-11-23 02:20:49,695 WARN L180 SmtUtils]: Spent 2.12 s on a formula simplification that was a NOOP. DAG size: 76 [2018-11-23 02:21:02,077 WARN L180 SmtUtils]: Spent 12.37 s on a formula simplification. DAG size of input: 315 DAG size of output: 80 [2018-11-23 02:21:02,079 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 02:21:02,222 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 02:21:02,645 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:02,766 INFO L303 Elim1Store]: Index analysis took 145 ms [2018-11-23 02:21:02,767 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 27 treesize of output 32 [2018-11-23 02:21:02,795 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 12 treesize of output 16 [2018-11-23 02:21:02,822 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 17 [2018-11-23 02:21:02,822 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:02,918 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:03,092 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:03,200 INFO L303 Elim1Store]: Index analysis took 132 ms [2018-11-23 02:21:03,200 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 25 treesize of output 25 [2018-11-23 02:21:03,223 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 13 treesize of output 1 [2018-11-23 02:21:03,223 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:03,293 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:03,324 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:03,547 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:03,614 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 1415 treesize of output 1287 [2018-11-23 02:21:06,565 WARN L180 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 108 DAG size of output: 62 [2018-11-23 02:21:06,579 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 12 treesize of output 16 [2018-11-23 02:21:06,598 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 17 [2018-11-23 02:21:06,598 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:06,688 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:06,893 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:06,894 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:06,909 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:07,001 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:07,054 INFO L303 Elim1Store]: Index analysis took 186 ms [2018-11-23 02:21:07,055 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1208 treesize of output 1471 [2018-11-23 02:21:07,072 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:07,073 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 1161 treesize of output 1171 [2018-11-23 02:21:07,073 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:07,207 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:07,226 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 1296 treesize of output 1043 [2018-11-23 02:21:07,242 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:07,243 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 972 treesize of output 944 [2018-11-23 02:21:07,244 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:07,314 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:07,315 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 950 treesize of output 915 [2018-11-23 02:21:07,316 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:07,338 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:07,351 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:07,364 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 02:21:07,456 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:07,501 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 972 treesize of output 613 [2018-11-23 02:21:07,514 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2018-11-23 02:21:07,526 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 17 [2018-11-23 02:21:07,527 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:07,573 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:07,667 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:07,711 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:07,774 INFO L303 Elim1Store]: Index analysis took 119 ms [2018-11-23 02:21:07,775 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 614 treesize of output 281 [2018-11-23 02:21:08,190 WARN L180 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 55 [2018-11-23 02:21:08,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 36 [2018-11-23 02:21:08,200 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:08,355 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:08,357 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:08,381 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:08,387 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:08,402 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 2 case distinctions, treesize of input 166 treesize of output 127 [2018-11-23 02:21:08,586 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-11-23 02:21:08,596 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:08,615 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2018-11-23 02:21:08,615 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:08,666 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:08,666 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:08,669 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:08,711 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 1 case distinctions, treesize of input 69 treesize of output 91 [2018-11-23 02:21:08,789 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:08,843 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 57 [2018-11-23 02:21:08,849 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 60 treesize of output 54 [2018-11-23 02:21:08,849 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:08,871 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 02:21:08,889 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 02:21:08,908 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 02:21:08,913 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:08,916 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:08,916 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:08,941 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 131 [2018-11-23 02:21:09,080 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2018-11-23 02:21:09,092 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:09,108 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2018-11-23 02:21:09,109 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,150 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:09,154 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:09,175 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 72 treesize of output 85 [2018-11-23 02:21:09,227 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:09,232 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 58 treesize of output 51 [2018-11-23 02:21:09,233 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,244 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,253 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,291 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:09,294 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 33 [2018-11-23 02:21:09,300 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2018-11-23 02:21:09,321 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:09,323 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:09,331 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 1 case distinctions, treesize of input 24 treesize of output 20 [2018-11-23 02:21:09,331 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 2 xjuncts. [2018-11-23 02:21:09,335 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 23 treesize of output 11 [2018-11-23 02:21:09,336 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,356 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 02:21:09,380 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 02:21:09,382 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:09,385 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 47 treesize of output 42 [2018-11-23 02:21:09,423 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 26 treesize of output 29 [2018-11-23 02:21:09,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2018-11-23 02:21:09,444 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,447 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,459 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 34 [2018-11-23 02:21:09,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-11-23 02:21:09,505 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,534 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:09,536 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 30 treesize of output 21 [2018-11-23 02:21:09,536 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,545 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 20 [2018-11-23 02:21:09,546 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 2 xjuncts. [2018-11-23 02:21:09,562 INFO L267 ElimStorePlain]: Start of recursive call 38: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 02:21:09,575 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 10 treesize of output 3 [2018-11-23 02:21:09,576 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,579 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 18 treesize of output 21 [2018-11-23 02:21:09,587 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 18 treesize of output 3 [2018-11-23 02:21:09,587 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,589 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,594 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 02:21:09,598 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:09,600 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2018-11-23 02:21:09,604 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 6 treesize of output 1 [2018-11-23 02:21:09,604 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,609 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:09,641 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-23 02:21:09,673 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-23 02:21:09,711 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: 9 dim-0 vars, and 6 xjuncts. [2018-11-23 02:21:09,711 INFO L202 ElimStorePlain]: Needed 46 recursive calls to eliminate 12 variables, input treesize:2523, output treesize:134 [2018-11-23 02:21:32,049 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 40 [2018-11-23 02:21:32,050 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:21:32,050 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3dfd238f-5704-402d-9776-e22c303e1ec7/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 02:21:32,056 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 02:21:32,099 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 02:21:32,099 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 02:21:32,104 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:21:32,106 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 02:21:32,106 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,109 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,109 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-23 02:21:32,313 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 18 treesize of output 15 [2018-11-23 02:21:32,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-23 02:21:32,320 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:32,321 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 02:21:32,321 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,333 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,342 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,372 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 18 treesize of output 15 [2018-11-23 02:21:32,375 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 02:21:32,377 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:32,378 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 02:21:32,378 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,384 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,389 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,407 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,407 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:51, output treesize:51 [2018-11-23 02:21:32,448 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:32,572 INFO L303 Elim1Store]: Index analysis took 162 ms [2018-11-23 02:21:32,573 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 02:21:32,582 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 02:21:32,582 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,622 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,761 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:32,797 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2018-11-23 02:21:32,802 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 02:21:32,810 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:32,811 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:32,812 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 36 [2018-11-23 02:21:32,812 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,835 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,865 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:32,936 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 02:21:32,942 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 02:21:32,997 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,011 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 40 treesize of output 41 [2018-11-23 02:21:33,014 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-23 02:21:33,018 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,020 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 29 [2018-11-23 02:21:33,025 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,026 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,027 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,031 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 46 [2018-11-23 02:21:33,032 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,042 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,050 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,062 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,097 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,097 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 4 variables, input treesize:122, output treesize:92 [2018-11-23 02:21:33,105 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,110 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:33,116 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 58 [2018-11-23 02:21:33,120 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-11-23 02:21:33,121 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,135 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,175 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,181 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,182 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 107 [2018-11-23 02:21:33,189 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 41 [2018-11-23 02:21:33,189 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,207 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,229 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:154, output treesize:108 [2018-11-23 02:21:33,259 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,260 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,260 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:33,261 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 02:21:33,261 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:33,280 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:97, output treesize:89 [2018-11-23 02:21:34,026 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:34,075 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:34,204 INFO L303 Elim1Store]: Index analysis took 194 ms [2018-11-23 02:21:34,205 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 392 treesize of output 321 [2018-11-23 02:21:34,229 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:34,236 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:34,309 INFO L303 Elim1Store]: Index analysis took 102 ms [2018-11-23 02:21:34,330 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 161 [2018-11-23 02:21:34,331 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-23 02:21:34,789 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:34,793 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:34,801 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:34,853 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:34,855 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 333 treesize of output 296 [2018-11-23 02:21:34,866 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 342 treesize of output 283 [2018-11-23 02:21:34,867 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 02:21:35,020 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 02:21:35,032 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:35,037 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:35,042 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:35,096 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:35,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 314 treesize of output 287 [2018-11-23 02:21:35,108 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 272 [2018-11-23 02:21:35,109 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 02:21:35,235 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 02:21:35,247 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:35,253 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:35,321 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:35,322 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 291 [2018-11-23 02:21:35,329 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 264 [2018-11-23 02:21:35,329 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 02:21:35,531 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 02:21:37,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-23 02:21:40,866 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:40,875 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:40,881 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:40,881 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:40,962 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:40,991 INFO L303 Elim1Store]: Index analysis took 160 ms [2018-11-23 02:21:40,991 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 244 [2018-11-23 02:21:41,000 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,000 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:41,001 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 66 [2018-11-23 02:21:41,001 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,072 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,074 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,090 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:41,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 143 [2018-11-23 02:21:41,096 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 73 [2018-11-23 02:21:41,097 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,127 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,167 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,178 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:41,191 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,233 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:41,292 INFO L303 Elim1Store]: Index analysis took 124 ms [2018-11-23 02:21:41,293 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 241 treesize of output 221 [2018-11-23 02:21:41,298 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,299 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:41,299 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 66 [2018-11-23 02:21:41,300 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,355 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,357 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,367 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:41,370 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 159 treesize of output 173 [2018-11-23 02:21:41,377 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 95 [2018-11-23 02:21:41,377 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,402 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,436 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,452 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,452 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:41,480 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:41,540 INFO L303 Elim1Store]: Index analysis took 103 ms [2018-11-23 02:21:41,541 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 205 [2018-11-23 02:21:41,549 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,549 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:41,550 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 66 [2018-11-23 02:21:41,550 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,628 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,629 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:21:41,640 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:21:41,643 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 137 [2018-11-23 02:21:41,648 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 64 [2018-11-23 02:21:41,649 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,683 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,727 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:21:41,888 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-23 02:21:41,888 INFO L202 ElimStorePlain]: Needed 21 recursive calls to eliminate 2 variables, input treesize:399, output treesize:396 [2018-11-23 02:21:42,502 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2018-11-23 02:21:43,302 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 02:21:43,302 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:21:47,016 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-11-23 02:21:47,184 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-11-23 02:21:47,483 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-11-23 02:21:47,733 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-11-23 02:22:03,843 WARN L180 SmtUtils]: Spent 4.76 s on a formula simplification that was a NOOP. DAG size: 97 [2018-11-23 02:22:06,339 WARN L180 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 70 [2018-11-23 02:22:09,207 WARN L180 SmtUtils]: Spent 2.87 s on a formula simplification that was a NOOP. DAG size: 78 [2018-11-23 02:22:14,093 WARN L180 SmtUtils]: Spent 4.89 s on a formula simplification that was a NOOP. DAG size: 76 [2018-11-23 02:22:25,722 WARN L180 SmtUtils]: Spent 11.62 s on a formula simplification. DAG size of input: 316 DAG size of output: 80 [2018-11-23 02:22:25,772 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:26,039 INFO L303 Elim1Store]: Index analysis took 316 ms [2018-11-23 02:22:26,040 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 27 treesize of output 32 [2018-11-23 02:22:26,085 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 12 treesize of output 16 [2018-11-23 02:22:26,113 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 17 [2018-11-23 02:22:26,114 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:26,352 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:26,695 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:26,918 INFO L303 Elim1Store]: Index analysis took 268 ms [2018-11-23 02:22:26,919 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 25 treesize of output 25 [2018-11-23 02:22:26,948 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 13 treesize of output 1 [2018-11-23 02:22:26,948 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:27,091 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:27,144 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:27,621 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:27,746 INFO L303 Elim1Store]: Index analysis took 159 ms [2018-11-23 02:22:27,746 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 788 treesize of output 660 [2018-11-23 02:22:28,214 WARN L180 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 55 [2018-11-23 02:22:28,243 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 12 treesize of output 16 [2018-11-23 02:22:28,263 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 17 [2018-11-23 02:22:28,263 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:28,373 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:28,744 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:28,745 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:28,766 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:22:28,915 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:22:28,980 INFO L303 Elim1Store]: Index analysis took 254 ms [2018-11-23 02:22:28,981 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 581 treesize of output 679 [2018-11-23 02:22:28,988 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:28,989 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 534 treesize of output 544 [2018-11-23 02:22:28,989 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:29,212 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:29,237 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 603 treesize of output 482 [2018-11-23 02:22:29,270 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:22:29,271 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 444 treesize of output 416 [2018-11-23 02:22:29,271 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:29,394 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:29,395 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 422 treesize of output 387 [2018-11-23 02:22:29,395 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:29,457 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:29,480 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:29,506 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 02:22:29,691 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:29,768 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 27 treesize of output 32 [2018-11-23 02:22:29,784 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 12 treesize of output 16 [2018-11-23 02:22:29,802 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 17 [2018-11-23 02:22:29,803 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:29,865 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:29,934 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:29,975 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 33 treesize of output 33 [2018-11-23 02:22:29,988 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 13 treesize of output 1 [2018-11-23 02:22:29,989 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,009 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,027 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,091 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,096 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,101 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 427 treesize of output 266 [2018-11-23 02:22:30,306 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-11-23 02:22:30,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2018-11-23 02:22:30,330 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,330 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 24 [2018-11-23 02:22:30,331 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,358 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,420 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,421 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,426 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:22:30,431 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:22:30,434 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,436 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,443 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:22:30,443 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 144 [2018-11-23 02:22:30,450 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:22:30,454 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,466 INFO L478 Elim1Store]: Elim1 applied some 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 2 case distinctions, treesize of input 47 treesize of output 66 [2018-11-23 02:22:30,467 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 02:22:30,524 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,524 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,526 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 02:22:30,526 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 94 [2018-11-23 02:22:30,644 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2018-11-23 02:22:30,647 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,649 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,659 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 1 case distinctions, treesize of input 37 treesize of output 38 [2018-11-23 02:22:30,659 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,686 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,687 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,687 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 44 [2018-11-23 02:22:30,691 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,694 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,694 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,720 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 44 [2018-11-23 02:22:30,723 INFO L267 ElimStorePlain]: Start of recursive call 28: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 7 xjuncts. [2018-11-23 02:22:30,776 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 02:22:30,776 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 19 treesize of output 8 [2018-11-23 02:22:30,776 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,783 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,790 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 02:22:30,797 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,801 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,808 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 02:22:30,809 INFO L202 ElimStorePlain]: Needed 29 recursive calls to eliminate 14 variables, input treesize:2523, output treesize:16 [2018-11-23 02:22:33,068 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_32 (_ BitVec 32)) (v_prenex_19 (_ BitVec 32))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| v_prenex_32) v_prenex_19)) (.cse1 (select (select |c_#memory_$Pointer$.offset| v_prenex_32) v_prenex_19))) (or (= (_ bv0 1) (select (store |c_old(#valid)| v_prenex_32 (_ bv1 1)) (_ bv0 32))) (not (= |c_dll_create_#res.base| .cse0)) (not (= .cse1 |c_dll_create_#res.offset|)) (= (let ((.cse5 (bvadd .cse1 (_ bv4 32)))) (let ((.cse3 (select (select |c_#memory_$Pointer$.offset| .cse0) .cse5))) (select (let ((.cse4 (select (select |c_#memory_$Pointer$.base| .cse0) .cse5))) (select (let ((.cse2 (store |c_#memory_$Pointer$.offset| .cse4 (store (select |c_#memory_$Pointer$.offset| .cse4) (bvadd .cse3 (_ bv8 32)) (_ bv0 32))))) (store .cse2 v_prenex_32 (store (select .cse2 v_prenex_32) v_prenex_19 .cse3))) .cse4)) (bvadd .cse3 (_ bv4 32))))) (_ bv0 32))))) (forall ((v_prenex_33 (_ BitVec 32)) (v_prenex_34 (_ BitVec 32))) (let ((.cse11 (select (select |c_#memory_$Pointer$.offset| v_prenex_34) v_prenex_33)) (.cse9 (select (select |c_#memory_$Pointer$.base| v_prenex_34) v_prenex_33))) (or (= (let ((.cse10 (bvadd .cse11 (_ bv4 32)))) (let ((.cse7 (select (select |c_#memory_$Pointer$.offset| .cse9) .cse10))) (select (let ((.cse8 (select (select |c_#memory_$Pointer$.base| .cse9) .cse10))) (select (let ((.cse6 (store |c_#memory_$Pointer$.offset| .cse8 (store (select |c_#memory_$Pointer$.offset| .cse8) (bvadd .cse7 (_ bv8 32)) (_ bv0 32))))) (store .cse6 v_prenex_34 (store (select .cse6 v_prenex_34) v_prenex_33 .cse7))) .cse8)) (bvadd .cse7 (_ bv4 32))))) (_ bv0 32)) (not (= .cse11 |c_dll_create_#res.offset|)) (= (select |c_old(#valid)| v_prenex_34) (_ bv0 1)) (not (= |c_dll_create_#res.base| .cse9))))) (forall ((v_prenex_30 (_ BitVec 32)) (v_prenex_31 (_ BitVec 32))) (let ((.cse12 (select (select |c_#memory_$Pointer$.offset| v_prenex_31) v_prenex_30)) (.cse16 (select (select |c_#memory_$Pointer$.base| v_prenex_31) v_prenex_30))) (or (not (= |c_dll_create_#res.offset| .cse12)) (= (let ((.cse17 (bvadd .cse12 (_ bv4 32)))) (let ((.cse15 (select (select |c_#memory_$Pointer$.offset| .cse16) .cse17))) (select (let ((.cse14 (select (select |c_#memory_$Pointer$.base| .cse16) .cse17))) (select (let ((.cse13 (store |c_#memory_$Pointer$.base| .cse14 (store (select |c_#memory_$Pointer$.base| .cse14) (bvadd .cse15 (_ bv8 32)) (_ bv0 32))))) (store .cse13 v_prenex_31 (store (select .cse13 v_prenex_31) v_prenex_30 .cse14))) .cse14)) (bvadd .cse15 (_ bv4 32))))) (_ bv0 32)) (= (select |c_old(#valid)| v_prenex_31) (_ bv0 1)) (not (= |c_dll_create_#res.base| .cse16))))) (forall ((|main_~#s~0.offset| (_ BitVec 32)) (|v_main_~#s~0.base_BEFORE_CALL_11| (_ BitVec 32))) (let ((.cse18 (select (select |c_#memory_$Pointer$.base| |v_main_~#s~0.base_BEFORE_CALL_11|) |main_~#s~0.offset|)) (.cse23 (select (select |c_#memory_$Pointer$.offset| |v_main_~#s~0.base_BEFORE_CALL_11|) |main_~#s~0.offset|))) (or (not (= |c_dll_create_#res.base| .cse18)) (= (let ((.cse22 (bvadd .cse23 (_ bv4 32)))) (let ((.cse21 (select (select |c_#memory_$Pointer$.offset| .cse18) .cse22))) (select (let ((.cse20 (select (select |c_#memory_$Pointer$.base| .cse18) .cse22))) (select (let ((.cse19 (store |c_#memory_$Pointer$.base| .cse20 (store (select |c_#memory_$Pointer$.base| .cse20) (bvadd .cse21 (_ bv8 32)) (_ bv0 32))))) (store .cse19 |v_main_~#s~0.base_BEFORE_CALL_11| (store (select .cse19 |v_main_~#s~0.base_BEFORE_CALL_11|) |main_~#s~0.offset| .cse20))) .cse20)) (bvadd .cse21 (_ bv4 32))))) (_ bv0 32)) (= (_ bv0 1) (select (store |c_old(#valid)| |v_main_~#s~0.base_BEFORE_CALL_11| (_ bv1 1)) (_ bv0 32))) (not (= |c_dll_create_#res.offset| .cse23)))))) is different from false [2018-11-23 02:22:35,113 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_30 (_ BitVec 32)) (v_prenex_31 (_ BitVec 32))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| v_prenex_31) v_prenex_30)) (.cse5 (select (select |c_#memory_$Pointer$.offset| v_prenex_31) v_prenex_30))) (or (= (let ((.cse4 (bvadd .cse5 (_ bv4 32)))) (let ((.cse2 (select (select |c_#memory_$Pointer$.offset| .cse3) .cse4))) (select (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse3) .cse4))) (select (let ((.cse0 (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) (bvadd .cse2 (_ bv8 32)) (_ bv0 32))))) (store .cse0 v_prenex_31 (store (select .cse0 v_prenex_31) v_prenex_30 .cse1))) .cse1)) (bvadd .cse2 (_ bv4 32))))) (_ bv0 32)) (not (= .cse3 c_dll_create_~head~0.base)) (= (select |c_old(#valid)| v_prenex_31) (_ bv0 1)) (not (= .cse5 c_dll_create_~head~0.offset))))) (forall ((|main_~#s~0.offset| (_ BitVec 32)) (|v_main_~#s~0.base_BEFORE_CALL_11| (_ BitVec 32))) (let ((.cse11 (select (select |c_#memory_$Pointer$.offset| |v_main_~#s~0.base_BEFORE_CALL_11|) |main_~#s~0.offset|)) (.cse9 (select (select |c_#memory_$Pointer$.base| |v_main_~#s~0.base_BEFORE_CALL_11|) |main_~#s~0.offset|))) (or (= (let ((.cse10 (bvadd .cse11 (_ bv4 32)))) (let ((.cse8 (select (select |c_#memory_$Pointer$.offset| .cse9) .cse10))) (select (let ((.cse7 (select (select |c_#memory_$Pointer$.base| .cse9) .cse10))) (select (let ((.cse6 (store |c_#memory_$Pointer$.base| .cse7 (store (select |c_#memory_$Pointer$.base| .cse7) (bvadd .cse8 (_ bv8 32)) (_ bv0 32))))) (store .cse6 |v_main_~#s~0.base_BEFORE_CALL_11| (store (select .cse6 |v_main_~#s~0.base_BEFORE_CALL_11|) |main_~#s~0.offset| .cse7))) .cse7)) (bvadd .cse8 (_ bv4 32))))) (_ bv0 32)) (= (_ bv0 1) (select (store |c_old(#valid)| |v_main_~#s~0.base_BEFORE_CALL_11| (_ bv1 1)) (_ bv0 32))) (not (= .cse11 c_dll_create_~head~0.offset)) (not (= .cse9 c_dll_create_~head~0.base))))) (forall ((v_prenex_32 (_ BitVec 32)) (v_prenex_19 (_ BitVec 32))) (let ((.cse13 (select (select |c_#memory_$Pointer$.base| v_prenex_32) v_prenex_19)) (.cse12 (select (select |c_#memory_$Pointer$.offset| v_prenex_32) v_prenex_19))) (or (not (= .cse12 c_dll_create_~head~0.offset)) (= (_ bv0 1) (select (store |c_old(#valid)| v_prenex_32 (_ bv1 1)) (_ bv0 32))) (not (= .cse13 c_dll_create_~head~0.base)) (= (let ((.cse17 (bvadd .cse12 (_ bv4 32)))) (let ((.cse15 (select (select |c_#memory_$Pointer$.offset| .cse13) .cse17))) (select (let ((.cse16 (select (select |c_#memory_$Pointer$.base| .cse13) .cse17))) (select (let ((.cse14 (store |c_#memory_$Pointer$.offset| .cse16 (store (select |c_#memory_$Pointer$.offset| .cse16) (bvadd .cse15 (_ bv8 32)) (_ bv0 32))))) (store .cse14 v_prenex_32 (store (select .cse14 v_prenex_32) v_prenex_19 .cse15))) .cse16)) (bvadd .cse15 (_ bv4 32))))) (_ bv0 32))))) (forall ((v_prenex_33 (_ BitVec 32)) (v_prenex_34 (_ BitVec 32))) (let ((.cse19 (select (select |c_#memory_$Pointer$.base| v_prenex_34) v_prenex_33)) (.cse18 (select (select |c_#memory_$Pointer$.offset| v_prenex_34) v_prenex_33))) (or (not (= .cse18 c_dll_create_~head~0.offset)) (not (= c_dll_create_~head~0.base .cse19)) (= (let ((.cse23 (bvadd .cse18 (_ bv4 32)))) (let ((.cse21 (select (select |c_#memory_$Pointer$.offset| .cse19) .cse23))) (select (let ((.cse22 (select (select |c_#memory_$Pointer$.base| .cse19) .cse23))) (select (let ((.cse20 (store |c_#memory_$Pointer$.offset| .cse22 (store (select |c_#memory_$Pointer$.offset| .cse22) (bvadd .cse21 (_ bv8 32)) (_ bv0 32))))) (store .cse20 v_prenex_34 (store (select .cse20 v_prenex_34) v_prenex_33 .cse21))) .cse22)) (bvadd .cse21 (_ bv4 32))))) (_ bv0 32)) (= (select |c_old(#valid)| v_prenex_34) (_ bv0 1)))))) is different from false [2018-11-23 02:23:12,825 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-23 02:23:13,026 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 02:23:13,026 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:141) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:893) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:767) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:339) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 40 more [2018-11-23 02:23:13,029 INFO L168 Benchmark]: Toolchain (without parser) took 186305.89 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 263.2 MB). Free memory was 944.4 MB in the beginning and 978.9 MB in the end (delta: -34.6 MB). Peak memory consumption was 228.6 MB. Max. memory is 11.5 GB. [2018-11-23 02:23:13,029 INFO L168 Benchmark]: CDTParser took 0.11 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 02:23:13,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2018-11-23 02:23:13,029 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-23 02:23:13,030 INFO L168 Benchmark]: Boogie Preprocessor took 25.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:23:13,030 INFO L168 Benchmark]: RCFGBuilder took 268.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-11-23 02:23:13,030 INFO L168 Benchmark]: TraceAbstraction took 185608.41 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 125.8 MB). Free memory was 1.1 GB in the beginning and 978.9 MB in the end (delta: 111.5 MB). Peak memory consumption was 237.3 MB. Max. memory is 11.5 GB. [2018-11-23 02:23:13,031 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 378.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 268.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 185608.41 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 125.8 MB). Free memory was 1.1 GB in the beginning and 978.9 MB in the end (delta: 111.5 MB). Peak memory consumption was 237.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...