./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/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 4aa4ae97046b46e050cb2478dec257c6a324dc09 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/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 4aa4ae97046b46e050cb2478dec257c6a324dc09 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_34 input size 13 context size 13 output size 13 --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 03:56:43,468 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:56:43,469 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:56:43,477 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:56:43,477 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:56:43,478 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:56:43,479 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:56:43,480 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:56:43,481 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:56:43,481 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:56:43,482 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:56:43,482 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:56:43,483 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:56:43,484 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:56:43,484 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:56:43,485 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:56:43,486 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:56:43,487 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:56:43,488 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:56:43,489 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:56:43,490 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:56:43,491 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:56:43,493 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:56:43,493 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:56:43,493 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:56:43,494 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:56:43,494 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:56:43,495 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:56:43,496 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:56:43,496 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:56:43,496 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:56:43,497 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:56:43,497 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:56:43,497 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:56:43,498 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:56:43,498 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:56:43,498 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 03:56:43,508 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:56:43,509 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:56:43,509 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 03:56:43,509 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 03:56:43,509 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 03:56:43,509 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 03:56:43,509 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 03:56:43,509 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 03:56:43,510 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 03:56:43,510 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 03:56:43,510 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 03:56:43,510 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 03:56:43,510 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 03:56:43,510 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:56:43,510 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 03:56:43,510 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 03:56:43,510 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 03:56:43,510 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 03:56:43,511 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:56:43,511 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:56:43,511 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 03:56:43,512 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 03:56:43,512 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 03:56:43,512 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 03:56:43,512 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 03:56:43,512 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 03:56:43,512 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_17829dd4-e803-4aa0-b03b-587a8c5346ca/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 -> 4aa4ae97046b46e050cb2478dec257c6a324dc09 [2018-12-02 03:56:43,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:56:43,536 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:56:43,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:56:43,539 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:56:43,540 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:56:43,540 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/../../sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-12-02 03:56:43,578 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/data/62f5e7fb5/e29830ed277a4fc1afa6328d0fe2e2a6/FLAGc13049329 [2018-12-02 03:56:44,023 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:56:44,023 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-12-02 03:56:44,030 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/data/62f5e7fb5/e29830ed277a4fc1afa6328d0fe2e2a6/FLAGc13049329 [2018-12-02 03:56:44,038 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/data/62f5e7fb5/e29830ed277a4fc1afa6328d0fe2e2a6 [2018-12-02 03:56:44,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:56:44,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:56:44,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:56:44,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:56:44,043 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:56:44,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dcf0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44, skipping insertion in model container [2018-12-02 03:56:44,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:56:44,069 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:56:44,218 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:56:44,224 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 03:56:44,288 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:56:44,311 INFO L195 MainTranslator]: Completed translation [2018-12-02 03:56:44,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44 WrapperNode [2018-12-02 03:56:44,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 03:56:44,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 03:56:44,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 03:56:44,312 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 03:56:44,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 03:56:44,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 03:56:44,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 03:56:44,330 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 03:56:44,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (1/1) ... [2018-12-02 03:56:44,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 03:56:44,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 03:56:44,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 03:56:44,351 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 03:56:44,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:56:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2018-12-02 03:56:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2018-12-02 03:56:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-12-02 03:56:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-12-02 03:56:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 03:56:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 03:56:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 03:56:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-12-02 03:56:44,384 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-12-02 03:56:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 03:56:44,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 03:56:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 03:56:44,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 03:56:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 03:56:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 03:56:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 03:56:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 03:56:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2018-12-02 03:56:44,385 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2018-12-02 03:56:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure dll_prepend [2018-12-02 03:56:44,385 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_prepend [2018-12-02 03:56:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 03:56:44,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 03:56:44,566 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 03:56:44,566 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-02 03:56:44,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:56:44 BoogieIcfgContainer [2018-12-02 03:56:44,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 03:56:44,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 03:56:44,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 03:56:44,569 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 03:56:44,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:56:44" (1/3) ... [2018-12-02 03:56:44,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba7cdb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:56:44, skipping insertion in model container [2018-12-02 03:56:44,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:56:44" (2/3) ... [2018-12-02 03:56:44,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba7cdb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:56:44, skipping insertion in model container [2018-12-02 03:56:44,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:56:44" (3/3) ... [2018-12-02 03:56:44,571 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-12-02 03:56:44,577 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 03:56:44,582 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 03:56:44,591 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 03:56:44,611 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 03:56:44,611 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 03:56:44,611 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 03:56:44,611 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 03:56:44,611 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 03:56:44,611 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 03:56:44,611 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 03:56:44,611 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 03:56:44,622 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-02 03:56:44,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 03:56:44,626 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:56:44,627 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] [2018-12-02 03:56:44,628 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:56:44,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:56:44,632 INFO L82 PathProgramCache]: Analyzing trace with hash 2094879456, now seen corresponding path program 1 times [2018-12-02 03:56:44,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 03:56:44,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:44,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:56:44,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:44,666 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 03:56:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:56:44,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:56:44,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:56:44,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 03:56:44,752 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 03:56:44,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 03:56:44,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 03:56:44,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 03:56:44,764 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-12-02 03:56:44,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:56:44,778 INFO L93 Difference]: Finished difference Result 86 states and 105 transitions. [2018-12-02 03:56:44,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 03:56:44,779 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2018-12-02 03:56:44,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:56:44,784 INFO L225 Difference]: With dead ends: 86 [2018-12-02 03:56:44,784 INFO L226 Difference]: Without dead ends: 36 [2018-12-02 03:56:44,786 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 03:56:44,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-02 03:56:44,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-12-02 03:56:44,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-02 03:56:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-12-02 03:56:44,807 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 30 [2018-12-02 03:56:44,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:56:44,808 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-12-02 03:56:44,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 03:56:44,808 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-12-02 03:56:44,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 03:56:44,808 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:56:44,808 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] [2018-12-02 03:56:44,809 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:56:44,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:56:44,809 INFO L82 PathProgramCache]: Analyzing trace with hash 2094870807, now seen corresponding path program 1 times [2018-12-02 03:56:44,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 03:56:44,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:44,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:56:44,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:44,810 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 03:56:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:56:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:56:44,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:56:44,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 03:56:44,944 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 03:56:44,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 03:56:44,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 03:56:44,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-02 03:56:44,946 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 10 states. [2018-12-02 03:56:45,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:56:45,057 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-12-02 03:56:45,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 03:56:45,057 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-12-02 03:56:45,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:56:45,058 INFO L225 Difference]: With dead ends: 43 [2018-12-02 03:56:45,058 INFO L226 Difference]: Without dead ends: 40 [2018-12-02 03:56:45,058 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-12-02 03:56:45,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-02 03:56:45,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2018-12-02 03:56:45,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-02 03:56:45,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-12-02 03:56:45,062 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 30 [2018-12-02 03:56:45,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:56:45,062 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-12-02 03:56:45,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 03:56:45,062 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-12-02 03:56:45,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 03:56:45,063 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:56:45,063 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] [2018-12-02 03:56:45,063 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:56:45,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:56:45,063 INFO L82 PathProgramCache]: Analyzing trace with hash 2094872481, now seen corresponding path program 1 times [2018-12-02 03:56:45,063 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 03:56:45,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:45,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:56:45,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:45,064 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 03:56:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:56:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:56:45,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:56:45,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 03:56:45,096 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 03:56:45,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 03:56:45,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 03:56:45,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 03:56:45,097 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 5 states. [2018-12-02 03:56:45,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:56:45,116 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2018-12-02 03:56:45,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 03:56:45,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-12-02 03:56:45,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:56:45,117 INFO L225 Difference]: With dead ends: 66 [2018-12-02 03:56:45,117 INFO L226 Difference]: Without dead ends: 42 [2018-12-02 03:56:45,117 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 [2018-12-02 03:56:45,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-02 03:56:45,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-12-02 03:56:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-02 03:56:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-12-02 03:56:45,121 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 30 [2018-12-02 03:56:45,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:56:45,121 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-12-02 03:56:45,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 03:56:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-12-02 03:56:45,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-02 03:56:45,121 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:56:45,122 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, 1, 1, 1, 1, 1] [2018-12-02 03:56:45,122 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:56:45,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:56:45,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1504377949, now seen corresponding path program 1 times [2018-12-02 03:56:45,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 03:56:45,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:45,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:56:45,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:45,123 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 03:56:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:56:45,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:56:45,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:56:45,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 03:56:45,158 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 03:56:45,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 03:56:45,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 03:56:45,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 03:56:45,159 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 3 states. [2018-12-02 03:56:45,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:56:45,175 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2018-12-02 03:56:45,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 03:56:45,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2018-12-02 03:56:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:56:45,176 INFO L225 Difference]: With dead ends: 71 [2018-12-02 03:56:45,176 INFO L226 Difference]: Without dead ends: 42 [2018-12-02 03:56:45,176 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 03:56:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-02 03:56:45,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2018-12-02 03:56:45,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-02 03:56:45,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-12-02 03:56:45,179 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 35 [2018-12-02 03:56:45,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:56:45,179 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-12-02 03:56:45,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 03:56:45,180 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-12-02 03:56:45,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-02 03:56:45,180 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:56:45,180 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, 1, 1, 1, 1, 1] [2018-12-02 03:56:45,180 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:56:45,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:56:45,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1370364443, now seen corresponding path program 1 times [2018-12-02 03:56:45,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 03:56:45,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:45,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:56:45,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:45,182 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 03:56:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:56:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:56:45,227 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 03:56:45,228 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 03:56:45,228 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2018-12-02 03:56:45,229 INFO L205 CegarAbsIntRunner]: [0], [2], [4], [13], [16], [29], [46], [47], [53], [60], [62], [68], [70], [75], [77], [81], [82], [83], [85], [88], [92], [93], [97], [103], [105], [106], [107], [108], [109], [110], [115], [116], [117], [118], [119] [2018-12-02 03:56:45,252 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 03:56:45,252 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 03:56:45,355 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 03:56:45,355 INFO L272 AbstractInterpreter]: Visited 14 different actions 19 times. Merged at 4 different actions 4 times. Never widened. Performed 187 root evaluator evaluations with a maximum evaluation depth of 3. Performed 187 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 30 variables. [2018-12-02 03:56:45,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:56:45,364 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 03:56:45,410 INFO L227 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 76.98% of their original sizes. [2018-12-02 03:56:45,410 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 03:56:45,452 INFO L418 sIntCurrentIteration]: We unified 34 AI predicates to 34 [2018-12-02 03:56:45,452 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 03:56:45,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 03:56:45,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-12-02 03:56:45,453 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 03:56:45,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 03:56:45,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 03:56:45,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-12-02 03:56:45,454 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 9 states. [2018-12-02 03:56:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:56:45,665 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2018-12-02 03:56:45,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 03:56:45,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-12-02 03:56:45,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:56:45,666 INFO L225 Difference]: With dead ends: 71 [2018-12-02 03:56:45,667 INFO L226 Difference]: Without dead ends: 47 [2018-12-02 03:56:45,667 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-12-02 03:56:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-02 03:56:45,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2018-12-02 03:56:45,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-02 03:56:45,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2018-12-02 03:56:45,674 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 35 [2018-12-02 03:56:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:56:45,674 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2018-12-02 03:56:45,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 03:56:45,674 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2018-12-02 03:56:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-02 03:56:45,675 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:56:45,675 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, 1, 1, 1, 1, 1] [2018-12-02 03:56:45,675 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:56:45,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:56:45,676 INFO L82 PathProgramCache]: Analyzing trace with hash 2118555171, now seen corresponding path program 1 times [2018-12-02 03:56:45,676 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 03:56:45,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:45,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:56:45,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 03:56:45,677 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 03:56:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:56:46,352 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2018-12-02 03:56:46,588 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:56:46,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 03:56:46,588 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 03:56:46,589 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2018-12-02 03:56:46,589 INFO L205 CegarAbsIntRunner]: [0], [2], [4], [13], [16], [29], [46], [47], [53], [60], [62], [68], [70], [73], [75], [77], [81], [82], [83], [85], [88], [92], [93], [97], [103], [105], [106], [107], [108], [109], [110], [115], [116], [117], [118], [119] [2018-12-02 03:56:46,590 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 03:56:46,590 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 03:56:46,637 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 03:56:46,638 INFO L272 AbstractInterpreter]: Visited 36 different actions 61 times. Merged at 9 different actions 19 times. Never widened. Performed 622 root evaluator evaluations with a maximum evaluation depth of 3. Performed 622 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 5 fixpoints after 3 different actions. Largest state had 30 variables. [2018-12-02 03:56:46,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:56:46,640 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 03:56:46,640 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 03:56:46,640 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 03:56:46,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:56:46,647 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 03:56:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:56:46,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:56:46,702 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 [2018-12-02 03:56:46,703 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:56:46,709 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:56:46,709 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-02 03:57:02,293 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:02,294 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:02,295 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-12-02 03:57:02,298 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 20 [2018-12-02 03:57:02,299 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:02,303 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:02,308 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:02,308 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:26 [2018-12-02 03:57:03,555 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 11 treesize of output 8 [2018-12-02 03:57:03,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:57:03,557 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:03,558 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:03,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:03,565 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2018-12-02 03:57:07,142 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 27 treesize of output 22 [2018-12-02 03:57:07,144 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:07,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-12-02 03:57:07,146 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:07,149 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:07,162 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:07,164 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:07,174 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:07,175 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:79, output treesize:62 [2018-12-02 03:57:10,658 WARN L180 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-12-02 03:57:10,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 158 treesize of output 211 [2018-12-02 03:57:10,683 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 159 treesize of output 53 [2018-12-02 03:57:10,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:10,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 156 treesize of output 103 [2018-12-02 03:57:10,704 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-12-02 03:57:10,712 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-02 03:57:10,723 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 54 treesize of output 52 [2018-12-02 03:57:10,725 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 7 treesize of output 1 [2018-12-02 03:57:10,725 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:10,727 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:10,735 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-02 03:57:10,735 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:172, output treesize:82 [2018-12-02 03:57:13,094 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 50 treesize of output 47 [2018-12-02 03:57:13,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:57:13,097 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,103 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,107 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 85 treesize of output 82 [2018-12-02 03:57:13,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:57:13,110 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,121 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,152 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 46 treesize of output 43 [2018-12-02 03:57:13,154 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:57:13,155 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,161 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,164 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 81 treesize of output 78 [2018-12-02 03:57:13,166 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:57:13,166 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,175 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,202 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 77 treesize of output 74 [2018-12-02 03:57:13,204 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-02 03:57:13,204 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,211 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,239 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 66 [2018-12-02 03:57:13,242 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 51 treesize of output 39 [2018-12-02 03:57:13,243 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:13,270 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 38 [2018-12-02 03:57:13,270 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-12-02 03:57:13,283 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-02 03:57:13,304 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-12-02 03:57:13,304 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 6 variables, input treesize:136, output treesize:135 [2018-12-02 03:57:15,523 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:15,524 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:15,525 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:15,526 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:15,527 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2018-12-02 03:57:15,527 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,536 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 12 treesize of output 10 [2018-12-02 03:57:15,537 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 10 treesize of output 8 [2018-12-02 03:57:15,538 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,538 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,545 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:166, output treesize:33 [2018-12-02 03:57:15,581 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 27 treesize of output 21 [2018-12-02 03:57:15,583 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 21 treesize of output 12 [2018-12-02 03:57:15,583 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,585 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,591 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 15 treesize of output 11 [2018-12-02 03:57:15,593 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-02 03:57:15,593 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,594 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,597 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,597 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:44, output treesize:14 [2018-12-02 03:57:15,629 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 [2018-12-02 03:57:15,630 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-02 03:57:15,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,631 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,633 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:15,633 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:7 [2018-12-02 03:57:15,659 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:57:15,659 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 03:57:15,971 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-12-02 03:57:16,190 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 19 treesize of output 16 [2018-12-02 03:57:16,193 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 16 treesize of output 20 [2018-12-02 03:57:16,197 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2018-12-02 03:57:16,197 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,200 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,202 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,215 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:16,218 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:16,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56 [2018-12-02 03:57:16,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-12-02 03:57:16,235 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:16,238 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:16,249 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:16,252 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:16,269 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:16,274 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:16,298 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 106 [2018-12-02 03:57:16,361 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:16,361 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:57:16,362 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 68 treesize of output 70 [2018-12-02 03:57:16,362 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,364 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:16,364 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:57:16,365 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 70 [2018-12-02 03:57:16,365 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,373 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 95 [2018-12-02 03:57:16,373 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-12-02 03:57:16,375 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:16,375 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:57:16,376 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 68 treesize of output 70 [2018-12-02 03:57:16,376 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,429 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 70 treesize of output 69 [2018-12-02 03:57:16,429 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,479 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 69 treesize of output 47 [2018-12-02 03:57:16,481 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 8 treesize of output 1 [2018-12-02 03:57:16,481 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,490 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 [2018-12-02 03:57:16,490 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,494 INFO L267 ElimStorePlain]: Start of recursive call 19: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 53 [2018-12-02 03:57:16,544 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2018-12-02 03:57:16,545 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2018-12-02 03:57:16,561 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-12-02 03:57:16,574 INFO L267 ElimStorePlain]: Start of recursive call 22: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-12-02 03:57:16,611 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 40 treesize of output 20 [2018-12-02 03:57:16,612 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 8 treesize of output 1 [2018-12-02 03:57:16,613 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,615 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,617 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 63 treesize of output 43 [2018-12-02 03:57:16,618 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 8 treesize of output 1 [2018-12-02 03:57:16,619 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,623 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,625 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 63 treesize of output 43 [2018-12-02 03:57:16,626 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 8 treesize of output 1 [2018-12-02 03:57:16,626 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,633 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:16,654 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-02 03:57:16,677 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 6 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-12-02 03:57:16,677 INFO L202 ElimStorePlain]: Needed 30 recursive calls to eliminate 7 variables, input treesize:147, output treesize:76 [2018-12-02 03:57:18,192 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 13 [2018-12-02 03:57:18,194 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-12-02 03:57:18,194 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,219 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 11 treesize of output 9 [2018-12-02 03:57:18,221 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2018-12-02 03:57:18,221 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,224 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,239 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,243 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,244 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,249 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,250 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,254 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,255 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,260 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:18,484 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 03:57:18,485 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: alternation not yet supported at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.applyNonSddEliminations(ElimStorePlain.java:347) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:264) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-12-02 03:57:18,490 INFO L168 Benchmark]: Toolchain (without parser) took 34449.81 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 269.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -143.4 MB). Peak memory consumption was 125.5 MB. Max. memory is 11.5 GB. [2018-12-02 03:57:18,491 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:57:18,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -141.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-12-02 03:57:18,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:57:18,493 INFO L168 Benchmark]: Boogie Preprocessor took 19.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-12-02 03:57:18,493 INFO L168 Benchmark]: RCFGBuilder took 216.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-12-02 03:57:18,494 INFO L168 Benchmark]: TraceAbstraction took 33922.27 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -36.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 11.5 GB. [2018-12-02 03:57:18,495 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -141.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 216.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 33922.27 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -36.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: alternation not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: alternation not yet supported: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.applyNonSddEliminations(ElimStorePlain.java:347) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-02 03:57:19,718 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:57:19,719 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:57:19,725 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:57:19,726 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:57:19,726 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:57:19,727 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:57:19,727 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:57:19,728 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:57:19,728 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:57:19,729 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:57:19,729 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:57:19,729 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:57:19,730 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:57:19,730 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:57:19,731 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:57:19,731 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:57:19,732 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:57:19,733 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:57:19,733 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:57:19,734 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:57:19,735 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:57:19,736 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:57:19,736 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:57:19,736 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:57:19,736 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:57:19,737 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:57:19,737 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:57:19,738 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:57:19,738 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:57:19,738 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:57:19,738 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:57:19,739 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:57:19,739 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:57:19,739 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:57:19,739 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:57:19,740 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 03:57:19,747 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:57:19,747 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:57:19,747 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 03:57:19,747 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 03:57:19,748 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 03:57:19,748 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 03:57:19,748 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 03:57:19,748 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 03:57:19,748 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 03:57:19,748 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 03:57:19,748 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:57:19,748 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 03:57:19,749 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:57:19,749 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 03:57:19,750 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 03:57:19,750 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 03:57:19,750 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:57:19,750 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:57:19,750 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 03:57:19,750 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 03:57:19,750 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 03:57:19,750 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 03:57:19,750 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 03:57:19,750 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 03:57:19,750 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_17829dd4-e803-4aa0-b03b-587a8c5346ca/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 -> 4aa4ae97046b46e050cb2478dec257c6a324dc09 [2018-12-02 03:57:19,768 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:57:19,775 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:57:19,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:57:19,779 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:57:19,779 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:57:19,779 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/../../sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-12-02 03:57:19,818 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/data/f293d9b85/0f674c6f25ad48ce90c2636f4abee083/FLAGdfc4d49c0 [2018-12-02 03:57:20,241 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:57:20,241 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-12-02 03:57:20,248 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/data/f293d9b85/0f674c6f25ad48ce90c2636f4abee083/FLAGdfc4d49c0 [2018-12-02 03:57:20,256 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/data/f293d9b85/0f674c6f25ad48ce90c2636f4abee083 [2018-12-02 03:57:20,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:57:20,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:57:20,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:57:20,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:57:20,261 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:57:20,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15605f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20, skipping insertion in model container [2018-12-02 03:57:20,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:57:20,287 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:57:20,449 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:57:20,457 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 03:57:20,523 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:57:20,546 INFO L195 MainTranslator]: Completed translation [2018-12-02 03:57:20,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20 WrapperNode [2018-12-02 03:57:20,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 03:57:20,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 03:57:20,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 03:57:20,548 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 03:57:20,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 03:57:20,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 03:57:20,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 03:57:20,566 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 03:57:20,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (1/1) ... [2018-12-02 03:57:20,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 03:57:20,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 03:57:20,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 03:57:20,588 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 03:57:20,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:57:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2018-12-02 03:57:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2018-12-02 03:57:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-12-02 03:57:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-12-02 03:57:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 03:57:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 03:57:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-12-02 03:57:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-12-02 03:57:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 03:57:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 03:57:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 03:57:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 03:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 03:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 03:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 03:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 03:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 03:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2018-12-02 03:57:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2018-12-02 03:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure dll_prepend [2018-12-02 03:57:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_prepend [2018-12-02 03:57:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 03:57:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 03:57:21,048 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 03:57:21,049 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-02 03:57:21,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:57:21 BoogieIcfgContainer [2018-12-02 03:57:21,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 03:57:21,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 03:57:21,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 03:57:21,051 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 03:57:21,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:57:20" (1/3) ... [2018-12-02 03:57:21,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a03929d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:57:21, skipping insertion in model container [2018-12-02 03:57:21,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:57:20" (2/3) ... [2018-12-02 03:57:21,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a03929d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:57:21, skipping insertion in model container [2018-12-02 03:57:21,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:57:21" (3/3) ... [2018-12-02 03:57:21,053 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-12-02 03:57:21,058 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 03:57:21,062 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 03:57:21,071 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 03:57:21,087 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 03:57:21,087 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 03:57:21,087 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 03:57:21,088 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 03:57:21,088 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 03:57:21,088 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 03:57:21,088 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 03:57:21,088 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 03:57:21,088 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 03:57:21,097 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-02 03:57:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 03:57:21,101 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:57:21,101 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] [2018-12-02 03:57:21,102 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:57:21,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:57:21,106 INFO L82 PathProgramCache]: Analyzing trace with hash 2094879456, now seen corresponding path program 1 times [2018-12-02 03:57:21,108 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:57:21,108 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:57:21,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:57:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:57:21,184 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:57:21,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:57:21,199 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:57:21,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:57:21,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 03:57:21,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 03:57:21,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 03:57:21,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 03:57:21,214 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-12-02 03:57:21,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:57:21,231 INFO L93 Difference]: Finished difference Result 86 states and 105 transitions. [2018-12-02 03:57:21,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 03:57:21,232 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2018-12-02 03:57:21,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:57:21,237 INFO L225 Difference]: With dead ends: 86 [2018-12-02 03:57:21,237 INFO L226 Difference]: Without dead ends: 36 [2018-12-02 03:57:21,240 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 03:57:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-02 03:57:21,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-12-02 03:57:21,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-02 03:57:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-12-02 03:57:21,264 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 30 [2018-12-02 03:57:21,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:57:21,264 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-12-02 03:57:21,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 03:57:21,265 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-12-02 03:57:21,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 03:57:21,265 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:57:21,265 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] [2018-12-02 03:57:21,266 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:57:21,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:57:21,266 INFO L82 PathProgramCache]: Analyzing trace with hash 2094870807, now seen corresponding path program 1 times [2018-12-02 03:57:21,266 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:57:21,267 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:57:21,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:57:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:57:21,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:57:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:57:21,364 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:57:21,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:57:21,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 03:57:21,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 03:57:21,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 03:57:21,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 03:57:21,367 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 5 states. [2018-12-02 03:57:21,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:57:21,407 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2018-12-02 03:57:21,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 03:57:21,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-12-02 03:57:21,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:57:21,409 INFO L225 Difference]: With dead ends: 64 [2018-12-02 03:57:21,409 INFO L226 Difference]: Without dead ends: 41 [2018-12-02 03:57:21,410 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 03:57:21,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-02 03:57:21,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2018-12-02 03:57:21,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-02 03:57:21,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-12-02 03:57:21,415 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 30 [2018-12-02 03:57:21,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:57:21,416 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-12-02 03:57:21,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 03:57:21,416 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-12-02 03:57:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-02 03:57:21,417 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:57:21,417 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, 1, 1, 1, 1, 1] [2018-12-02 03:57:21,417 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:57:21,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:57:21,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1504376275, now seen corresponding path program 1 times [2018-12-02 03:57:21,418 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:57:21,418 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:57:21,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:57:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:57:21,483 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:57:21,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:57:21,493 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:57:21,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:57:21,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 03:57:21,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 03:57:21,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 03:57:21,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 03:57:21,495 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 3 states. [2018-12-02 03:57:21,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:57:21,688 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2018-12-02 03:57:21,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 03:57:21,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2018-12-02 03:57:21,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:57:21,688 INFO L225 Difference]: With dead ends: 69 [2018-12-02 03:57:21,689 INFO L226 Difference]: Without dead ends: 41 [2018-12-02 03:57:21,689 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 03:57:21,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-02 03:57:21,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-12-02 03:57:21,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-02 03:57:21,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2018-12-02 03:57:21,692 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 35 [2018-12-02 03:57:21,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:57:21,693 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2018-12-02 03:57:21,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 03:57:21,693 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-12-02 03:57:21,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-02 03:57:21,693 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:57:21,693 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, 1, 1, 1, 1, 1] [2018-12-02 03:57:21,693 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:57:21,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:57:21,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1370362769, now seen corresponding path program 1 times [2018-12-02 03:57:21,694 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:57:21,694 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:57:21,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:57:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:57:21,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:57:21,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:57:21,800 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 03:57:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:57:21,941 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 03:57:21,941 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/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 [2018-12-02 03:57:21,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:57:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:57:21,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:57:22,118 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 11 treesize of output 8 [2018-12-02 03:57:22,121 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:57:22,121 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:22,123 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:22,128 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:22,128 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2018-12-02 03:57:22,174 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 16 treesize of output 12 [2018-12-02 03:57:22,177 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 12 treesize of output 4 [2018-12-02 03:57:22,177 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:22,178 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:22,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:22,180 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2018-12-02 03:57:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 03:57:22,202 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:57:22,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 03:57:22,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6, 6] total 17 [2018-12-02 03:57:22,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-02 03:57:22,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-02 03:57:22,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2018-12-02 03:57:22,218 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 17 states. [2018-12-02 03:57:23,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:57:23,141 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2018-12-02 03:57:23,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 03:57:23,142 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2018-12-02 03:57:23,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:57:23,143 INFO L225 Difference]: With dead ends: 73 [2018-12-02 03:57:23,143 INFO L226 Difference]: Without dead ends: 50 [2018-12-02 03:57:23,144 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2018-12-02 03:57:23,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-02 03:57:23,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2018-12-02 03:57:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-02 03:57:23,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2018-12-02 03:57:23,149 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 35 [2018-12-02 03:57:23,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:57:23,149 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2018-12-02 03:57:23,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-02 03:57:23,149 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2018-12-02 03:57:23,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-02 03:57:23,150 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:57:23,150 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, 1, 1, 1, 1, 1] [2018-12-02 03:57:23,150 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 03:57:23,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:57:23,151 INFO L82 PathProgramCache]: Analyzing trace with hash 2118555171, now seen corresponding path program 1 times [2018-12-02 03:57:23,151 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:57:23,151 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:57:23,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:57:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:57:23,386 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:57:23,389 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 [2018-12-02 03:57:23,390 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:23,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:23,398 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-02 03:57:23,898 WARN L854 $PredicateComparison]: unable to prove that (exists ((|dll_create_#t~malloc3.base| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |dll_create_#t~malloc3.base| (_ bv1 1))) (= (select |c_old(#valid)| |dll_create_#t~malloc3.base|) (_ bv0 1)))) is different from true [2018-12-02 03:57:24,768 WARN L180 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-02 03:57:26,788 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 17 [2018-12-02 03:57:26,814 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:26,816 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:26,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 29 [2018-12-02 03:57:26,823 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-12-02 03:57:26,823 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:26,831 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:26,841 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:26,842 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:31 [2018-12-02 03:57:26,996 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 11 treesize of output 8 [2018-12-02 03:57:27,001 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:57:27,001 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:27,006 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:27,028 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:27,029 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2018-12-02 03:57:27,251 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:27,269 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:27,403 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 27 treesize of output 22 [2018-12-02 03:57:27,413 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:57:27,429 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-12-02 03:57:27,429 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:27,447 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:27,515 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:27,515 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:83, output treesize:70 [2018-12-02 03:57:29,669 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 38 [2018-12-02 03:57:29,695 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 290 treesize of output 280 [2018-12-02 03:57:29,707 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 280 treesize of output 270 [2018-12-02 03:57:29,708 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:29,796 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:57:30,137 INFO L303 Elim1Store]: Index analysis took 124 ms [2018-12-02 03:57:30,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 137 [2018-12-02 03:57:30,212 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 126 treesize of output 12 [2018-12-02 03:57:30,213 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:30,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 123 treesize of output 66 [2018-12-02 03:57:30,517 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-12-02 03:57:30,625 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-02 03:57:30,822 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-02 03:57:30,822 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:311, output treesize:346 [2018-12-02 03:57:35,680 WARN L180 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 63 [2018-12-02 03:57:35,738 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 245 treesize of output 242 [2018-12-02 03:57:35,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:57:35,751 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:35,897 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:35,955 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 288 treesize of output 285 [2018-12-02 03:57:35,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:57:35,971 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:36,140 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:37,722 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 241 treesize of output 238 [2018-12-02 03:57:37,731 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-02 03:57:37,731 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:37,820 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:57:38,919 INFO L303 Elim1Store]: Index analysis took 152 ms [2018-12-02 03:57:39,087 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 284 treesize of output 308 [2018-12-02 03:57:39,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 286 treesize of output 280 [2018-12-02 03:57:39,262 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-12-02 03:57:41,980 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 285 treesize of output 273 [2018-12-02 03:57:41,980 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-02 03:57:42,480 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-02 03:57:43,819 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-12-02 03:57:43,820 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:534, output treesize:1033 [2018-12-02 03:57:59,391 WARN L180 SmtUtils]: Spent 14.41 s on a formula simplification that was a NOOP. DAG size: 86 [2018-12-02 03:58:19,949 WARN L180 SmtUtils]: Spent 20.55 s on a formula simplification. DAG size of input: 312 DAG size of output: 66 [2018-12-02 03:58:20,030 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:20,054 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:20,089 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:20,090 INFO L303 Elim1Store]: Index analysis took 139 ms [2018-12-02 03:58:20,090 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 [2018-12-02 03:58:20,091 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:20,997 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:20,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 151 [2018-12-02 03:58:21,238 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2018-12-02 03:58:21,245 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 83 treesize of output 79 [2018-12-02 03:58:21,254 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 79 treesize of output 75 [2018-12-02 03:58:21,272 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 75 treesize of output 92 [2018-12-02 03:58:21,273 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,329 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,385 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,492 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 69 [2018-12-02 03:58:21,520 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 70 [2018-12-02 03:58:21,521 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,592 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 59 treesize of output 64 [2018-12-02 03:58:21,592 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,635 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,693 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:21,703 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 69 [2018-12-02 03:58:21,710 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:21,711 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:21,712 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:21,714 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:21,723 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 95 [2018-12-02 03:58:21,724 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2018-12-02 03:58:21,762 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:58:21,762 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,775 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,786 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,799 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:21,985 INFO L303 Elim1Store]: Index analysis took 184 ms [2018-12-02 03:58:21,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 88 [2018-12-02 03:58:21,996 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 25 treesize of output 28 [2018-12-02 03:58:22,005 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 28 treesize of output 30 [2018-12-02 03:58:22,040 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2018-12-02 03:58:22,079 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 49 [2018-12-02 03:58:22,079 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:22,106 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:22,127 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:22,150 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:22,291 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 3 case distinctions, treesize of input 88 treesize of output 99 [2018-12-02 03:58:22,298 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 94 treesize of output 93 [2018-12-02 03:58:22,298 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:22,738 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:22,739 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 69 treesize of output 129 [2018-12-02 03:58:22,739 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,199 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:23,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 90 [2018-12-02 03:58:23,226 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:23,227 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 150 [2018-12-02 03:58:23,227 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,300 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-02 03:58:23,437 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:23,463 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 89 [2018-12-02 03:58:23,470 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 94 [2018-12-02 03:58:23,470 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,513 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,563 INFO L267 ElimStorePlain]: Start of recursive call 19: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,583 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,637 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:58:23,637 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 14 variables, input treesize:1123, output treesize:82 [2018-12-02 03:58:23,812 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 31 [2018-12-02 03:58:23,816 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 18 treesize of output 5 [2018-12-02 03:58:23,816 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,828 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-02 03:58:23,828 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,831 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,844 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 27 treesize of output 21 [2018-12-02 03:58:23,846 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 21 treesize of output 12 [2018-12-02 03:58:23,847 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,851 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,858 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:23,859 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:76, output treesize:16 [2018-12-02 03:58:24,019 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 [2018-12-02 03:58:24,021 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-02 03:58:24,021 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:24,022 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:24,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:24,025 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2018-12-02 03:58:24,155 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2018-12-02 03:58:24,155 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 03:58:25,190 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-12-02 03:58:25,329 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-12-02 03:58:31,684 WARN L180 SmtUtils]: Spent 6.35 s on a formula simplification that was a NOOP. DAG size: 113 [2018-12-02 03:58:34,154 WARN L180 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 78 [2018-12-02 03:58:37,180 WARN L180 SmtUtils]: Spent 3.02 s on a formula simplification that was a NOOP. DAG size: 92 [2018-12-02 03:58:40,123 WARN L180 SmtUtils]: Spent 2.94 s on a formula simplification that was a NOOP. DAG size: 88 [2018-12-02 03:58:40,297 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-12-02 03:58:40,298 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:58:40,325 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:58:40,480 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:58:40,523 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:58:40,637 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:58:40,651 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:58:40,749 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 101 [2018-12-02 03:58:40,758 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 12 treesize of output 16 [2018-12-02 03:58:40,778 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 [2018-12-02 03:58:40,778 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:40,808 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:40,982 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 89 [2018-12-02 03:58:41,107 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 4 case distinctions, treesize of input 70 treesize of output 131 [2018-12-02 03:58:41,108 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 4 xjuncts. [2018-12-02 03:58:41,954 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 73 treesize of output 72 [2018-12-02 03:58:41,955 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:42,778 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:42,820 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:42,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 68 treesize of output 97 [2018-12-02 03:58:42,891 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:42,893 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:42,972 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 156 [2018-12-02 03:58:42,973 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 4 xjuncts. [2018-12-02 03:58:43,394 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:43,403 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:43,420 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:43,449 INFO L478 Elim1Store]: Elim1 did not use 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 0 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 128 [2018-12-02 03:58:43,450 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 3 xjuncts. [2018-12-02 03:58:43,892 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-12-02 03:58:44,913 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:44,951 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:45,014 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 65 treesize of output 96 [2018-12-02 03:58:45,020 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:45,022 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:45,033 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 78 [2018-12-02 03:58:45,033 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:45,263 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:45,271 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:45,286 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:45,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 128 [2018-12-02 03:58:45,314 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 3 xjuncts. [2018-12-02 03:58:45,617 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-12-02 03:58:46,371 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 109 [2018-12-02 03:58:46,375 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 84 [2018-12-02 03:58:46,376 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:46,514 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:46,515 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:46,541 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 128 [2018-12-02 03:58:46,541 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-12-02 03:58:46,652 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-02 03:58:46,662 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:46,663 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:46,663 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 93 treesize of output 99 [2018-12-02 03:58:46,668 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:46,671 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:46,681 INFO L478 Elim1Store]: Elim1 did not use 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 83 [2018-12-02 03:58:46,681 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:46,716 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:47,032 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-12-02 03:58:47,243 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-12-02 03:58:47,439 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 73 treesize of output 69 [2018-12-02 03:58:47,441 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 13 treesize of output 4 [2018-12-02 03:58:47,441 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:47,463 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:47,471 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 77 treesize of output 71 [2018-12-02 03:58:47,475 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 47 treesize of output 37 [2018-12-02 03:58:47,475 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:47,500 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:47,503 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 77 treesize of output 71 [2018-12-02 03:58:47,506 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 43 treesize of output 33 [2018-12-02 03:58:47,506 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:47,526 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:47,529 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 49 treesize of output 47 [2018-12-02 03:58:47,533 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-12-02 03:58:47,533 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:58:47,565 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:58:47,783 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 54 [2018-12-02 03:58:47,787 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 49 treesize of output 23 [2018-12-02 03:58:47,787 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:47,843 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 23 treesize of output 15 [2018-12-02 03:58:47,843 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:47,915 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 68 [2018-12-02 03:58:47,916 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 4 xjuncts. [2018-12-02 03:58:48,009 INFO L267 ElimStorePlain]: Start of recursive call 33: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-12-02 03:58:48,011 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 64 [2018-12-02 03:58:48,016 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 [2018-12-02 03:58:48,016 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:48,033 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:48,035 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 68 treesize of output 64 [2018-12-02 03:58:48,038 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:48,041 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 32 treesize of output 27 [2018-12-02 03:58:48,042 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:48,053 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:48,056 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 68 treesize of output 62 [2018-12-02 03:58:48,061 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:58:48,062 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:58:48,067 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 51 [2018-12-02 03:58:48,068 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:48,085 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:48,193 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 6 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-12-02 03:58:48,193 INFO L202 ElimStorePlain]: Needed 42 recursive calls to eliminate 7 variables, input treesize:135, output treesize:86 [2018-12-02 03:58:48,407 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 03:58:48,407 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 03:58:48,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:58:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:58:48,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:58:48,460 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 [2018-12-02 03:58:48,461 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:58:48,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:58:48,462 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-02 03:59:01,766 WARN L180 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-12-02 03:59:12,718 WARN L180 SmtUtils]: Spent 2.00 s on a formula simplification that was a NOOP. DAG size: 15 [2018-12-02 03:59:23,369 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:59:23,370 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:59:23,371 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:59:23,371 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 40 [2018-12-02 03:59:23,374 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 34 [2018-12-02 03:59:23,374 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:23,383 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:23,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:59:23,393 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:29 [2018-12-02 03:59:32,080 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 11 treesize of output 8 [2018-12-02 03:59:32,084 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:59:32,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:32,089 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:32,111 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:32,111 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2018-12-02 03:59:38,595 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 27 treesize of output 22 [2018-12-02 03:59:38,611 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:59:38,624 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-12-02 03:59:38,624 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:38,660 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:38,757 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:59:38,767 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:59:38,834 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:59:38,834 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:79, output treesize:62 [2018-12-02 03:59:51,195 WARN L180 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 37 [2018-12-02 03:59:51,319 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 158 treesize of output 211 [2018-12-02 03:59:51,327 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 159 treesize of output 53 [2018-12-02 03:59:51,327 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:51,441 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 156 treesize of output 103 [2018-12-02 03:59:51,441 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-12-02 03:59:51,487 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-02 03:59:51,567 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 54 treesize of output 52 [2018-12-02 03:59:51,571 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 7 treesize of output 1 [2018-12-02 03:59:51,571 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:51,577 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:51,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-02 03:59:51,620 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:172, output treesize:82 [2018-12-02 03:59:56,034 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 85 treesize of output 82 [2018-12-02 03:59:56,042 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-02 03:59:56,042 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:56,104 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:56,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 62 [2018-12-02 03:59:56,394 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 51 treesize of output 39 [2018-12-02 03:59:56,395 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:56,534 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 42 [2018-12-02 03:59:56,534 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-12-02 03:59:56,605 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-02 03:59:56,814 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 35 treesize of output 32 [2018-12-02 03:59:56,817 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:59:56,817 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:56,830 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:56,836 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 34 treesize of output 31 [2018-12-02 03:59:56,838 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:59:56,838 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:56,850 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:56,868 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 70 treesize of output 67 [2018-12-02 03:59:56,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:59:56,875 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:56,929 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:57,106 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 66 treesize of output 63 [2018-12-02 03:59:57,110 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:59:57,110 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:57,140 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:57,143 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 30 treesize of output 27 [2018-12-02 03:59:57,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:59:57,145 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:57,153 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:57,157 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 31 treesize of output 28 [2018-12-02 03:59:57,159 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 03:59:57,160 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:57,169 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:57,304 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-12-02 03:59:57,304 INFO L202 ElimStorePlain]: Needed 18 recursive calls to eliminate 6 variables, input treesize:136, output treesize:135 [2018-12-02 03:59:59,825 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2018-12-02 03:59:59,891 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:59:59,893 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:59:59,895 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:59:59,895 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 03:59:59,896 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 49 [2018-12-02 03:59:59,896 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:59,926 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 29 treesize of output 23 [2018-12-02 03:59:59,932 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2018-12-02 03:59:59,932 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-02 03:59:59,934 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:59,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:59:59,949 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:188, output treesize:27 [2018-12-02 04:00:03,511 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 [2018-12-02 04:00:03,513 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-02 04:00:03,513 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:03,515 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:00:03,526 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 27 treesize of output 21 [2018-12-02 04:00:03,530 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 21 treesize of output 12 [2018-12-02 04:00:03,530 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:03,534 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:00:03,540 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:00:03,541 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:41, output treesize:11 [2018-12-02 04:00:07,114 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 [2018-12-02 04:00:07,116 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-02 04:00:07,116 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:07,118 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:00:07,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:00:07,119 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-02 04:00:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2018-12-02 04:00:07,124 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 04:00:07,405 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-12-02 04:00:07,519 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-12-02 04:00:11,772 WARN L180 SmtUtils]: Spent 4.25 s on a formula simplification that was a NOOP. DAG size: 109 [2018-12-02 04:00:12,557 WARN L180 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2018-12-02 04:00:13,927 WARN L180 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 91 [2018-12-02 04:00:15,238 WARN L180 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 87 [2018-12-02 04:00:15,422 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-12-02 04:00:15,423 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:00:15,442 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:00:15,550 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 82 treesize of output 78 [2018-12-02 04:00:15,559 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 74 [2018-12-02 04:00:15,559 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:00:15,580 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:00:15,713 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 19 treesize of output 16 [2018-12-02 04:00:15,731 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 16 treesize of output 20 [2018-12-02 04:00:15,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2018-12-02 04:00:15,757 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:15,770 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:00:15,783 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:00:15,842 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:00:15,850 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:00:15,896 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:00:15,906 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:00:16,029 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 106 [2018-12-02 04:00:16,281 WARN L180 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-12-02 04:00:16,285 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 70 treesize of output 69 [2018-12-02 04:00:16,286 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:16,510 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 95 [2018-12-02 04:00:16,511 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-12-02 04:00:16,516 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:00:16,516 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 04:00:16,517 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 68 treesize of output 70 [2018-12-02 04:00:16,517 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:16,525 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:00:16,526 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 04:00:16,526 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 68 treesize of output 70 [2018-12-02 04:00:16,527 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:16,743 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 53 [2018-12-02 04:00:16,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2018-12-02 04:00:16,755 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-12-02 04:00:16,799 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 39 treesize of output 33 [2018-12-02 04:00:16,799 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:16,841 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-12-02 04:00:16,977 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 40 treesize of output 20 [2018-12-02 04:00:16,980 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 8 treesize of output 1 [2018-12-02 04:00:16,980 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:16,986 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:00:16,989 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2018-12-02 04:00:16,993 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:00:16,994 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 14 treesize of output 10 [2018-12-02 04:00:16,994 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:17,009 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:00:17,012 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2018-12-02 04:00:17,017 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:00:17,018 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 14 treesize of output 10 [2018-12-02 04:00:17,018 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-12-02 04:00:17,037 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:00:17,148 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-02 04:00:17,202 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 6 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-12-02 04:00:17,203 INFO L202 ElimStorePlain]: Needed 26 recursive calls to eliminate 8 variables, input treesize:147, output treesize:76 [2018-12-02 04:00:17,547 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 04:00:17,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 38 [2018-12-02 04:00:17,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-12-02 04:00:17,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-12-02 04:00:17,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1501, Unknown=38, NotChecked=78, Total=1722 [2018-12-02 04:00:17,549 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 38 states. [2018-12-02 04:00:38,389 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 27 DAG size of output: 19 [2018-12-02 04:00:56,694 WARN L180 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 36 DAG size of output: 28 [2018-12-02 04:01:10,463 WARN L180 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2018-12-02 04:01:36,908 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2018-12-02 04:02:00,442 WARN L180 SmtUtils]: Spent 8.38 s on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-12-02 04:02:26,451 WARN L180 SmtUtils]: Spent 5.75 s on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2018-12-02 04:03:22,739 WARN L180 SmtUtils]: Spent 37.29 s on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2018-12-02 04:03:34,802 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-12-02 04:04:03,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:04:03,220 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2018-12-02 04:04:03,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-02 04:04:03,222 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 40 [2018-12-02 04:04:03,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:04:03,224 INFO L225 Difference]: With dead ends: 75 [2018-12-02 04:04:03,224 INFO L226 Difference]: Without dead ends: 73 [2018-12-02 04:04:03,225 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 228.9s TimeCoverageRelationStatistics Valid=226, Invalid=3253, Unknown=65, NotChecked=116, Total=3660 [2018-12-02 04:04:03,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-02 04:04:03,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2018-12-02 04:04:03,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-12-02 04:04:03,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2018-12-02 04:04:03,233 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 40 [2018-12-02 04:04:03,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:04:03,233 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2018-12-02 04:04:03,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-12-02 04:04:03,233 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2018-12-02 04:04:03,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-02 04:04:03,234 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:04:03,234 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:04:03,235 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:04:03,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:04:03,235 INFO L82 PathProgramCache]: Analyzing trace with hash 390225691, now seen corresponding path program 2 times [2018-12-02 04:04:03,235 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 04:04:03,235 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 04:04:03,249 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-02 04:04:03,407 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-02 04:04:03,407 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 04:04:03,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:04:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:04:03,452 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 04:04:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:04:03,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:04:03,601 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 04:04:03,607 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-02 04:04:04,778 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-02 04:04:04,778 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 04:04:04,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:04:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:04:04,873 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 04:04:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:04:05,386 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-02 04:04:05,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9, 9] total 20 [2018-12-02 04:04:05,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-02 04:04:05,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-02 04:04:05,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2018-12-02 04:04:05,387 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand 20 states. [2018-12-02 04:04:06,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:04:06,222 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2018-12-02 04:04:06,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 04:04:06,224 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 45 [2018-12-02 04:04:06,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:04:06,224 INFO L225 Difference]: With dead ends: 85 [2018-12-02 04:04:06,224 INFO L226 Difference]: Without dead ends: 44 [2018-12-02 04:04:06,225 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 159 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2018-12-02 04:04:06,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-02 04:04:06,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-02 04:04:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-02 04:04:06,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2018-12-02 04:04:06,228 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 45 [2018-12-02 04:04:06,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:04:06,229 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2018-12-02 04:04:06,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-02 04:04:06,229 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2018-12-02 04:04:06,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-02 04:04:06,229 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:04:06,229 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, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:04:06,229 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:04:06,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:04:06,229 INFO L82 PathProgramCache]: Analyzing trace with hash 117064084, now seen corresponding path program 1 times [2018-12-02 04:04:06,229 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 04:04:06,230 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 04:04:06,243 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 04:04:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:04:06,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:04:06,482 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 [2018-12-02 04:04:06,482 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:06,485 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:06,486 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-02 04:04:07,751 WARN L854 $PredicateComparison]: unable to prove that (exists ((|dll_create_#t~malloc3.base| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |dll_create_#t~malloc3.base| (_ bv1 1))) (= (select |c_old(#valid)| |dll_create_#t~malloc3.base|) (_ bv0 1)))) is different from true [2018-12-02 04:04:09,396 WARN L180 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 17 [2018-12-02 04:04:10,985 WARN L180 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-12-02 04:04:13,100 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 17 [2018-12-02 04:04:13,105 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:13,107 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:13,107 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 29 [2018-12-02 04:04:13,112 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 25 treesize of output 20 [2018-12-02 04:04:13,113 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:13,119 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:13,128 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:13,129 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:27 [2018-12-02 04:04:15,756 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:15,764 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:15,817 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:15,817 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:57, output treesize:63 [2018-12-02 04:04:19,957 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 33 [2018-12-02 04:04:19,970 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 205 treesize of output 203 [2018-12-02 04:04:19,980 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 201 [2018-12-02 04:04:19,981 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:20,004 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:20,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:20,119 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:220, output treesize:216 [2018-12-02 04:04:26,413 WARN L180 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 40 [2018-12-02 04:04:26,472 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 11 treesize of output 8 [2018-12-02 04:04:26,484 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 04:04:26,484 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:26,502 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:26,641 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:26,641 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:344, output treesize:340 [2018-12-02 04:04:31,013 WARN L180 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 40 [2018-12-02 04:04:32,005 WARN L180 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 55 [2018-12-02 04:04:32,028 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:32,049 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:32,069 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:32,081 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:32,082 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-12-02 04:04:32,082 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:32,258 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:32,432 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:32,438 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:32,438 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 04:04:32,439 INFO L303 Elim1Store]: Index analysis took 207 ms [2018-12-02 04:04:32,441 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 176 treesize of output 204 [2018-12-02 04:04:32,973 WARN L180 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2018-12-02 04:04:32,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 98 [2018-12-02 04:04:32,994 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 98 treesize of output 85 [2018-12-02 04:04:33,085 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 83 [2018-12-02 04:04:33,086 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:33,191 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:33,302 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:33,564 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 67 [2018-12-02 04:04:33,597 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:33,634 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 04:04:33,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 65 [2018-12-02 04:04:33,635 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:33,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-12-02 04:04:33,693 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:33,733 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:33,938 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 109 [2018-12-02 04:04:33,946 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 97 [2018-12-02 04:04:33,946 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:34,706 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 81 [2018-12-02 04:04:34,706 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-12-02 04:04:35,346 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 04:04:35,347 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 73 [2018-12-02 04:04:35,351 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 21 treesize of output 13 [2018-12-02 04:04:35,352 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:35,377 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:35,394 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:35,395 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2018-12-02 04:04:35,399 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 31 [2018-12-02 04:04:35,399 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:35,434 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:35,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 99 [2018-12-02 04:04:35,897 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 76 treesize of output 71 [2018-12-02 04:04:35,906 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-12-02 04:04:35,907 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:35,939 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:36,014 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:36,116 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:36,186 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 114 [2018-12-02 04:04:36,192 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 104 [2018-12-02 04:04:36,192 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:36,367 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:36,376 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:36,389 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 101 [2018-12-02 04:04:36,395 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2018-12-02 04:04:36,395 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:36,432 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:36,539 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:36,577 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:04:36,619 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 88 treesize of output 129 [2018-12-02 04:04:36,697 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 103 [2018-12-02 04:04:36,698 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-12-02 04:04:36,964 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 81 [2018-12-02 04:04:36,964 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:37,120 INFO L267 ElimStorePlain]: Start of recursive call 24: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-12-02 04:04:37,258 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-02 04:04:37,464 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2018-12-02 04:04:37,469 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 12 treesize of output 4 [2018-12-02 04:04:37,469 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:37,494 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:37,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 86 [2018-12-02 04:04:37,507 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 12 treesize of output 4 [2018-12-02 04:04:37,507 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-12-02 04:04:37,536 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:04:37,545 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2018-12-02 04:04:37,554 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 31 treesize of output 25 [2018-12-02 04:04:37,554 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:37,585 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:37,593 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2018-12-02 04:04:37,598 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 24 treesize of output 20 [2018-12-02 04:04:37,598 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:37,623 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:04:37,833 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-12-02 04:04:38,044 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-12-02 04:04:38,045 INFO L202 ElimStorePlain]: Needed 34 recursive calls to eliminate 6 variables, input treesize:376, output treesize:330 [2018-12-02 04:06:02,511 WARN L180 SmtUtils]: Spent 1.41 m on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2018-12-02 04:06:02,518 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 105 treesize of output 101 [2018-12-02 04:06:02,522 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-02 04:06:02,522 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:02,564 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:02,718 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 113 treesize of output 109 [2018-12-02 04:06:02,727 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-02 04:06:02,727 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:02,759 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:02,903 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 88 treesize of output 84 [2018-12-02 04:06:02,905 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-02 04:06:02,905 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:02,918 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:03,047 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 3 dim-2 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2018-12-02 04:06:03,047 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 9 variables, input treesize:307, output treesize:274 [2018-12-02 04:06:15,930 WARN L180 SmtUtils]: Spent 12.08 s on a formula simplification that was a NOOP. DAG size: 80 [2018-12-02 04:06:15,955 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:15,960 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:15,960 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 62 [2018-12-02 04:06:15,965 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2018-12-02 04:06:15,966 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:15,990 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:15,991 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:15,991 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 15 treesize of output 13 [2018-12-02 04:06:15,991 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,005 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 [2018-12-02 04:06:16,005 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,010 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,140 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 95 treesize of output 76 [2018-12-02 04:06:16,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 39 [2018-12-02 04:06:16,145 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,321 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-12-02 04:06:16,322 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-12-02 04:06:16,462 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,568 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2018-12-02 04:06:16,568 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,671 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2018-12-02 04:06:16,672 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,770 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2018-12-02 04:06:16,770 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,866 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 29 treesize of output 21 [2018-12-02 04:06:16,866 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,937 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2018-12-02 04:06:16,937 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,973 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 21 treesize of output 9 [2018-12-02 04:06:16,974 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:16,993 INFO L267 ElimStorePlain]: Start of recursive call 6: 10 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:17,067 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 51 [2018-12-02 04:06:17,070 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 31 treesize of output 27 [2018-12-02 04:06:17,070 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:17,101 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2018-12-02 04:06:17,101 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:17,129 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 17 treesize of output 4 [2018-12-02 04:06:17,129 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:17,137 INFO L267 ElimStorePlain]: Start of recursive call 16: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:17,141 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:17,141 INFO L202 ElimStorePlain]: Needed 19 recursive calls to eliminate 9 variables, input treesize:277, output treesize:4 [2018-12-02 04:06:19,210 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2018-12-02 04:06:19,210 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 04:06:21,265 WARN L180 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2018-12-02 04:06:21,608 WARN L180 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-12-02 04:06:22,071 WARN L180 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-12-02 04:06:22,611 WARN L180 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-12-02 04:06:22,680 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:22,700 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:22,749 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 256 treesize of output 252 [2018-12-02 04:06:22,763 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 248 [2018-12-02 04:06:22,763 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:22,780 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:22,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:22,848 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:185, output treesize:255 [2018-12-02 04:06:27,279 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 04:06:27,279 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17829dd4-e803-4aa0-b03b-587a8c5346ca/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 04:06:27,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:06:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:06:27,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:06:27,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 04:06:27,326 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:27,327 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:27,327 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-02 04:06:30,913 WARN L854 $PredicateComparison]: unable to prove that (exists ((dll_create_~head~0.base (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| dll_create_~head~0.base (_ bv1 1))) (= (_ bv0 1) (select |c_old(#valid)| dll_create_~head~0.base)))) is different from true [2018-12-02 04:06:31,159 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:31,160 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:31,161 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-12-02 04:06:31,164 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 20 [2018-12-02 04:06:31,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:31,171 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:31,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:31,179 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:24 [2018-12-02 04:06:31,433 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:31,443 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:31,489 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:31,489 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:53, output treesize:55 [2018-12-02 04:06:33,606 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 205 treesize of output 203 [2018-12-02 04:06:33,616 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 201 [2018-12-02 04:06:33,616 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:33,637 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:33,745 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:33,745 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:220, output treesize:216 [2018-12-02 04:06:39,958 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 11 treesize of output 8 [2018-12-02 04:06:39,975 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-02 04:06:39,975 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:40,023 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:40,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-12-02 04:06:40,163 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:344, output treesize:340 [2018-12-02 04:06:41,531 WARN L180 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 121 DAG size of output: 56 [2018-12-02 04:06:41,573 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:41,600 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:41,609 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:41,618 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:41,619 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-12-02 04:06:41,619 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:41,802 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:41,982 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:41,987 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:41,988 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 04:06:41,988 INFO L303 Elim1Store]: Index analysis took 224 ms [2018-12-02 04:06:41,991 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 176 treesize of output 196 [2018-12-02 04:06:42,458 WARN L180 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2018-12-02 04:06:42,471 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 92 treesize of output 82 [2018-12-02 04:06:42,490 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 82 treesize of output 72 [2018-12-02 04:06:42,539 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2018-12-02 04:06:42,539 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:42,644 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:42,751 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:43,043 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2018-12-02 04:06:43,068 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 04:06:43,110 INFO L683 Elim1Store]: detected equality via solver [2018-12-02 04:06:43,110 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 57 [2018-12-02 04:06:43,111 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:43,188 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-12-02 04:06:43,188 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-02 04:06:43,229 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 04:06:43,374 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 68 [2018-12-02 04:06:43,380 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-02 04:06:43,585 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 04:06:43,586 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_34 input size 13 context size 13 output size 13 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-12-02 04:06:43,588 INFO L168 Benchmark]: Toolchain (without parser) took 563330.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 325.1 MB. Max. memory is 11.5 GB. [2018-12-02 04:06:43,589 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:06:43,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2018-12-02 04:06:43,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:06:43,589 INFO L168 Benchmark]: Boogie Preprocessor took 21.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 04:06:43,589 INFO L168 Benchmark]: RCFGBuilder took 460.68 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-12-02 04:06:43,589 INFO L168 Benchmark]: TraceAbstraction took 562538.45 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 32.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -33.7 MB). Peak memory consumption was 332.4 MB. Max. memory is 11.5 GB. [2018-12-02 04:06:43,590 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -178.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 460.68 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 562538.45 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 32.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -33.7 MB). Peak memory consumption was 332.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_34 input size 13 context size 13 output size 13 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_34 input size 13 context size 13 output size 13: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...