./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e6399ca05df7547b7620299987a8a06e9e2c006b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e6399ca05df7547b7620299987a8a06e9e2c006b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_348 term size 35 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:43:59,960 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:43:59,962 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:43:59,969 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:43:59,969 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:43:59,969 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:43:59,970 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:43:59,971 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:43:59,972 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:43:59,973 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:43:59,973 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:43:59,974 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:43:59,974 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:43:59,975 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:43:59,976 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:43:59,976 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:43:59,977 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:43:59,979 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:43:59,980 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:43:59,981 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:43:59,982 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:43:59,983 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:43:59,984 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:43:59,985 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:43:59,985 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:43:59,985 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:43:59,986 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:43:59,987 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:43:59,987 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:43:59,988 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:43:59,988 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:43:59,989 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:43:59,989 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:43:59,989 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:43:59,990 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:43:59,990 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:43:59,991 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 13:44:00,000 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:44:00,001 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:44:00,001 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:44:00,001 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:44:00,002 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:44:00,002 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:44:00,002 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:44:00,002 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:44:00,002 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:44:00,002 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:44:00,003 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:44:00,003 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:44:00,003 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:44:00,003 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:44:00,003 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:44:00,003 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:44:00,003 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:44:00,004 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:44:00,004 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:44:00,004 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:44:00,004 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:44:00,004 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:44:00,004 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:44:00,004 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:44:00,005 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:44:00,005 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:44:00,005 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:44:00,005 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 13:44:00,005 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:44:00,005 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:44:00,005 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_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6399ca05df7547b7620299987a8a06e9e2c006b [2018-11-18 13:44:00,027 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:44:00,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:44:00,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:44:00,042 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:44:00,042 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:44:00,043 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 13:44:00,081 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/data/2bbe92712/2d841d7ad6bc4d68bca2cffd82552b0f/FLAGdb9f396bc [2018-11-18 13:44:00,490 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:44:00,490 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 13:44:00,501 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/data/2bbe92712/2d841d7ad6bc4d68bca2cffd82552b0f/FLAGdb9f396bc [2018-11-18 13:44:00,857 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/data/2bbe92712/2d841d7ad6bc4d68bca2cffd82552b0f [2018-11-18 13:44:00,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:44:00,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 13:44:00,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:44:00,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:44:00,864 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:44:00,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e6ce68e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00, skipping insertion in model container [2018-11-18 13:44:00,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:44:00,909 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:44:01,120 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:44:01,126 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:44:01,205 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:44:01,240 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:44:01,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:01 WrapperNode [2018-11-18 13:44:01,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:44:01,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:44:01,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:44:01,241 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:44:01,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:01" (1/1) ... [2018-11-18 13:44:01,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:01" (1/1) ... [2018-11-18 13:44:01,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:01" (1/1) ... [2018-11-18 13:44:01,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:01" (1/1) ... [2018-11-18 13:44:01,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:01" (1/1) ... [2018-11-18 13:44:01,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:01" (1/1) ... [2018-11-18 13:44:01,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:01" (1/1) ... [2018-11-18 13:44:01,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:44:01,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:44:01,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:44:01,283 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:44:01,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:44:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:44:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:44:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-18 13:44:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-18 13:44:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 13:44:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-11-18 13:44:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_pair [2018-11-18 13:44:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2018-11-18 13:44:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_before [2018-11-18 13:44:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_after [2018-11-18 13:44:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:44:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 13:44:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-18 13:44:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-18 13:44:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 13:44:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 13:44:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 13:44:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 13:44:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 13:44:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 13:44:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 13:44:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 13:44:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 13:44:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 13:44:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 13:44:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 13:44:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 13:44:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 13:44:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 13:44:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 13:44:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 13:44:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 13:44:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 13:44:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 13:44:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 13:44:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 13:44:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 13:44:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 13:44:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 13:44:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 13:44:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 13:44:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 13:44:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 13:44:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 13:44:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 13:44:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 13:44:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 13:44:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 13:44:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 13:44:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 13:44:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 13:44:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 13:44:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 13:44:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 13:44:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 13:44:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 13:44:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 13:44:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 13:44:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 13:44:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 13:44:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 13:44:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 13:44:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 13:44:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 13:44:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 13:44:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 13:44:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 13:44:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 13:44:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 13:44:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 13:44:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 13:44:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 13:44:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 13:44:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 13:44:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 13:44:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 13:44:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 13:44:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 13:44:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 13:44:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 13:44:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 13:44:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 13:44:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 13:44:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 13:44:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 13:44:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 13:44:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 13:44:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 13:44:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 13:44:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 13:44:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 13:44:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 13:44:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 13:44:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 13:44:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 13:44:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 13:44:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-11-18 13:44:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 13:44:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 13:44:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure merge_pair [2018-11-18 13:44:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:44:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 13:44:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:44:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sort_core [2018-11-18 13:44:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_before [2018-11-18 13:44:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_after [2018-11-18 13:44:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:44:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 13:44:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:44:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:44:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 13:44:01,810 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:44:01,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:44:01 BoogieIcfgContainer [2018-11-18 13:44:01,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:44:01,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:44:01,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:44:01,815 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:44:01,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:44:00" (1/3) ... [2018-11-18 13:44:01,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd652e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:44:01, skipping insertion in model container [2018-11-18 13:44:01,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:01" (2/3) ... [2018-11-18 13:44:01,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffd652e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:44:01, skipping insertion in model container [2018-11-18 13:44:01,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:44:01" (3/3) ... [2018-11-18 13:44:01,817 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 13:44:01,825 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:44:01,832 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:44:01,846 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:44:01,867 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:44:01,868 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:44:01,868 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:44:01,868 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:44:01,868 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:44:01,868 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:44:01,868 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:44:01,868 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:44:01,868 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:44:01,881 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2018-11-18 13:44:01,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:44:01,886 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:01,887 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:01,889 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:01,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:01,893 INFO L82 PathProgramCache]: Analyzing trace with hash 993254836, now seen corresponding path program 1 times [2018-11-18 13:44:01,894 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:01,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:01,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:01,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:01,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:01,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:01,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:44:01,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:44:02,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:44:02,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:44:02,007 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2018-11-18 13:44:02,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:02,035 INFO L93 Difference]: Finished difference Result 240 states and 391 transitions. [2018-11-18 13:44:02,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:44:02,037 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-18 13:44:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:02,045 INFO L225 Difference]: With dead ends: 240 [2018-11-18 13:44:02,045 INFO L226 Difference]: Without dead ends: 111 [2018-11-18 13:44:02,048 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:44:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-11-18 13:44:02,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-11-18 13:44:02,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-18 13:44:02,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 134 transitions. [2018-11-18 13:44:02,084 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 134 transitions. Word has length 14 [2018-11-18 13:44:02,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:02,084 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 134 transitions. [2018-11-18 13:44:02,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:44:02,085 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 134 transitions. [2018-11-18 13:44:02,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 13:44:02,085 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:02,085 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:02,085 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:02,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:02,086 INFO L82 PathProgramCache]: Analyzing trace with hash 213030440, now seen corresponding path program 1 times [2018-11-18 13:44:02,086 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:02,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:02,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:02,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:02,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:02,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:02,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:44:02,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:44:02,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:44:02,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:44:02,134 INFO L87 Difference]: Start difference. First operand 111 states and 134 transitions. Second operand 3 states. [2018-11-18 13:44:02,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:02,164 INFO L93 Difference]: Finished difference Result 216 states and 262 transitions. [2018-11-18 13:44:02,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:44:02,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-18 13:44:02,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:02,166 INFO L225 Difference]: With dead ends: 216 [2018-11-18 13:44:02,166 INFO L226 Difference]: Without dead ends: 118 [2018-11-18 13:44:02,167 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:44:02,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-18 13:44:02,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2018-11-18 13:44:02,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-11-18 13:44:02,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2018-11-18 13:44:02,176 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 16 [2018-11-18 13:44:02,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:02,176 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2018-11-18 13:44:02,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:44:02,176 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2018-11-18 13:44:02,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 13:44:02,177 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:02,177 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:02,180 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:02,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:02,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1390052738, now seen corresponding path program 1 times [2018-11-18 13:44:02,180 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:02,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:02,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:02,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:02,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:02,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:02,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:02,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:44:02,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:44:02,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:44:02,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:44:02,260 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand 6 states. [2018-11-18 13:44:02,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:02,390 INFO L93 Difference]: Finished difference Result 163 states and 196 transitions. [2018-11-18 13:44:02,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:44:02,391 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 13:44:02,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:02,393 INFO L225 Difference]: With dead ends: 163 [2018-11-18 13:44:02,393 INFO L226 Difference]: Without dead ends: 158 [2018-11-18 13:44:02,393 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:44:02,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-11-18 13:44:02,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 119. [2018-11-18 13:44:02,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-11-18 13:44:02,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 142 transitions. [2018-11-18 13:44:02,406 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 142 transitions. Word has length 23 [2018-11-18 13:44:02,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:02,406 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 142 transitions. [2018-11-18 13:44:02,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:44:02,406 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 142 transitions. [2018-11-18 13:44:02,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 13:44:02,407 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:02,407 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:02,407 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:02,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:02,408 INFO L82 PathProgramCache]: Analyzing trace with hash 310598650, now seen corresponding path program 1 times [2018-11-18 13:44:02,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:02,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:02,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:02,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:02,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:02,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:44:02,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:02,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:44:02,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:44:02,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:44:02,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:44:02,488 INFO L87 Difference]: Start difference. First operand 119 states and 142 transitions. Second operand 5 states. [2018-11-18 13:44:02,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:02,595 INFO L93 Difference]: Finished difference Result 121 states and 143 transitions. [2018-11-18 13:44:02,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:44:02,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-18 13:44:02,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:02,597 INFO L225 Difference]: With dead ends: 121 [2018-11-18 13:44:02,597 INFO L226 Difference]: Without dead ends: 118 [2018-11-18 13:44:02,598 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:44:02,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-18 13:44:02,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-11-18 13:44:02,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-11-18 13:44:02,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 140 transitions. [2018-11-18 13:44:02,607 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 140 transitions. Word has length 31 [2018-11-18 13:44:02,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:02,607 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 140 transitions. [2018-11-18 13:44:02,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:44:02,607 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 140 transitions. [2018-11-18 13:44:02,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 13:44:02,608 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:02,608 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:02,608 INFO L423 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:02,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:02,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1477891468, now seen corresponding path program 1 times [2018-11-18 13:44:02,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:02,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:02,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:02,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:02,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:02,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:44:02,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:02,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:44:02,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:44:02,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:44:02,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:44:02,668 INFO L87 Difference]: Start difference. First operand 118 states and 140 transitions. Second operand 5 states. [2018-11-18 13:44:02,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:02,773 INFO L93 Difference]: Finished difference Result 120 states and 141 transitions. [2018-11-18 13:44:02,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:44:02,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-18 13:44:02,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:02,776 INFO L225 Difference]: With dead ends: 120 [2018-11-18 13:44:02,776 INFO L226 Difference]: Without dead ends: 117 [2018-11-18 13:44:02,777 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:44:02,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-11-18 13:44:02,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-11-18 13:44:02,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-11-18 13:44:02,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 138 transitions. [2018-11-18 13:44:02,786 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 138 transitions. Word has length 31 [2018-11-18 13:44:02,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:02,786 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 138 transitions. [2018-11-18 13:44:02,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:44:02,786 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2018-11-18 13:44:02,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 13:44:02,787 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:02,787 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:02,787 INFO L423 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:02,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:02,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1496433235, now seen corresponding path program 1 times [2018-11-18 13:44:02,788 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:02,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:02,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:02,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:02,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:02,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:02,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 13:44:02,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 13:44:02,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 13:44:02,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:44:02,862 INFO L87 Difference]: Start difference. First operand 117 states and 138 transitions. Second operand 7 states. [2018-11-18 13:44:03,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:03,039 INFO L93 Difference]: Finished difference Result 153 states and 179 transitions. [2018-11-18 13:44:03,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:44:03,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-18 13:44:03,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:03,040 INFO L225 Difference]: With dead ends: 153 [2018-11-18 13:44:03,040 INFO L226 Difference]: Without dead ends: 150 [2018-11-18 13:44:03,041 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:44:03,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-18 13:44:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 123. [2018-11-18 13:44:03,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-11-18 13:44:03,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2018-11-18 13:44:03,048 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 34 [2018-11-18 13:44:03,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:03,049 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2018-11-18 13:44:03,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 13:44:03,049 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2018-11-18 13:44:03,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 13:44:03,050 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:03,050 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:03,050 INFO L423 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:03,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:03,050 INFO L82 PathProgramCache]: Analyzing trace with hash -408502051, now seen corresponding path program 1 times [2018-11-18 13:44:03,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:03,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:03,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:03,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:03,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:03,120 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:03,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 13:44:03,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 13:44:03,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 13:44:03,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:44:03,121 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand 7 states. [2018-11-18 13:44:03,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:03,264 INFO L93 Difference]: Finished difference Result 152 states and 177 transitions. [2018-11-18 13:44:03,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:44:03,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-18 13:44:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:03,266 INFO L225 Difference]: With dead ends: 152 [2018-11-18 13:44:03,266 INFO L226 Difference]: Without dead ends: 149 [2018-11-18 13:44:03,266 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:44:03,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-11-18 13:44:03,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 129. [2018-11-18 13:44:03,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-11-18 13:44:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2018-11-18 13:44:03,272 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 34 [2018-11-18 13:44:03,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:03,273 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2018-11-18 13:44:03,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 13:44:03,273 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2018-11-18 13:44:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 13:44:03,274 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:03,274 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:03,274 INFO L423 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:03,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:03,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1691091992, now seen corresponding path program 1 times [2018-11-18 13:44:03,274 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:03,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:03,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:03,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:03,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:03,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:03,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:03,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 13:44:03,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:44:03,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:44:03,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:44:03,391 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 8 states. [2018-11-18 13:44:03,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:03,679 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2018-11-18 13:44:03,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 13:44:03,679 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-11-18 13:44:03,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:03,680 INFO L225 Difference]: With dead ends: 151 [2018-11-18 13:44:03,680 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 13:44:03,681 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:44:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 13:44:03,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 132. [2018-11-18 13:44:03,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-11-18 13:44:03,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 153 transitions. [2018-11-18 13:44:03,687 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 153 transitions. Word has length 37 [2018-11-18 13:44:03,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:03,687 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 153 transitions. [2018-11-18 13:44:03,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:44:03,687 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 153 transitions. [2018-11-18 13:44:03,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 13:44:03,688 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:03,688 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:03,688 INFO L423 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:03,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:03,688 INFO L82 PathProgramCache]: Analyzing trace with hash 2014515298, now seen corresponding path program 1 times [2018-11-18 13:44:03,689 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:03,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:03,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:03,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:03,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:03,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:03,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 13:44:03,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:44:03,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:44:03,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:44:03,774 INFO L87 Difference]: Start difference. First operand 132 states and 153 transitions. Second operand 8 states. [2018-11-18 13:44:04,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:04,022 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2018-11-18 13:44:04,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 13:44:04,023 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-11-18 13:44:04,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:04,024 INFO L225 Difference]: With dead ends: 150 [2018-11-18 13:44:04,024 INFO L226 Difference]: Without dead ends: 147 [2018-11-18 13:44:04,024 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:44:04,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-11-18 13:44:04,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 135. [2018-11-18 13:44:04,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-11-18 13:44:04,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 156 transitions. [2018-11-18 13:44:04,030 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 156 transitions. Word has length 37 [2018-11-18 13:44:04,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:04,030 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 156 transitions. [2018-11-18 13:44:04,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:44:04,030 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 156 transitions. [2018-11-18 13:44:04,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 13:44:04,031 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:04,031 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:04,031 INFO L423 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:04,031 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:04,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1888998545, now seen corresponding path program 1 times [2018-11-18 13:44:04,031 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:04,032 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:04,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:04,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:04,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:44:04,072 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:44:04,072 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:44:04,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:04,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:44:04,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-18 13:44:04,200 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-18 13:44:04,200 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-11-18 13:44:04,234 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 13:44:04,234 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,248 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2018-11-18 13:44:04,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 13:44:04,257 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,261 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,266 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-18 13:44:04,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-18 13:44:04,271 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,286 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,294 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:44:04,294 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:59, output treesize:9 [2018-11-18 13:44:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:44:04,326 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:44:04,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-11-18 13:44:04,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:44:04,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:44:04,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:44:04,327 INFO L87 Difference]: Start difference. First operand 135 states and 156 transitions. Second operand 5 states. [2018-11-18 13:44:04,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:04,411 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2018-11-18 13:44:04,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:44:04,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2018-11-18 13:44:04,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:04,412 INFO L225 Difference]: With dead ends: 137 [2018-11-18 13:44:04,412 INFO L226 Difference]: Without dead ends: 133 [2018-11-18 13:44:04,413 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:44:04,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-11-18 13:44:04,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-11-18 13:44:04,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-11-18 13:44:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 152 transitions. [2018-11-18 13:44:04,420 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 152 transitions. Word has length 43 [2018-11-18 13:44:04,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:04,420 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 152 transitions. [2018-11-18 13:44:04,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:44:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 152 transitions. [2018-11-18 13:44:04,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 13:44:04,421 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:04,421 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:04,421 INFO L423 AbstractCegarLoop]: === Iteration 11 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:04,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:04,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1503200268, now seen corresponding path program 1 times [2018-11-18 13:44:04,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:04,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:04,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:04,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:04,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:04,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:04,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:44:04,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:44:04,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:44:04,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:44:04,459 INFO L87 Difference]: Start difference. First operand 133 states and 152 transitions. Second operand 6 states. [2018-11-18 13:44:04,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:04,503 INFO L93 Difference]: Finished difference Result 165 states and 189 transitions. [2018-11-18 13:44:04,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:44:04,504 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-11-18 13:44:04,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:04,504 INFO L225 Difference]: With dead ends: 165 [2018-11-18 13:44:04,505 INFO L226 Difference]: Without dead ends: 162 [2018-11-18 13:44:04,505 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:44:04,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-11-18 13:44:04,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 140. [2018-11-18 13:44:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-11-18 13:44:04,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 160 transitions. [2018-11-18 13:44:04,511 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 160 transitions. Word has length 47 [2018-11-18 13:44:04,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:04,511 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 160 transitions. [2018-11-18 13:44:04,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:44:04,511 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 160 transitions. [2018-11-18 13:44:04,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 13:44:04,512 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:04,512 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:04,512 INFO L423 AbstractCegarLoop]: === Iteration 12 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:04,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:04,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1924352114, now seen corresponding path program 1 times [2018-11-18 13:44:04,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:04,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:04,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:04,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:04,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:04,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:44:04,690 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:44:04,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:04,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:44:04,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:04,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:04,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:04,754 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,759 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,762 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:04,772 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:04,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:04,776 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,779 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,782 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,789 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:32, output treesize:18 [2018-11-18 13:44:04,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:44:04,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:44:04,856 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,858 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:44:04,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:44:04,867 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,869 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,872 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:04,872 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 13:44:04,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:04,902 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:44:04,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2018-11-18 13:44:04,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 13:44:04,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 13:44:04,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:44:04,903 INFO L87 Difference]: Start difference. First operand 140 states and 160 transitions. Second operand 11 states. [2018-11-18 13:44:05,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:05,193 INFO L93 Difference]: Finished difference Result 292 states and 339 transitions. [2018-11-18 13:44:05,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 13:44:05,194 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 50 [2018-11-18 13:44:05,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:05,195 INFO L225 Difference]: With dead ends: 292 [2018-11-18 13:44:05,195 INFO L226 Difference]: Without dead ends: 289 [2018-11-18 13:44:05,196 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:44:05,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2018-11-18 13:44:05,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 216. [2018-11-18 13:44:05,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-11-18 13:44:05,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 244 transitions. [2018-11-18 13:44:05,208 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 244 transitions. Word has length 50 [2018-11-18 13:44:05,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:05,208 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 244 transitions. [2018-11-18 13:44:05,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 13:44:05,208 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 244 transitions. [2018-11-18 13:44:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 13:44:05,209 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:05,209 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:05,209 INFO L423 AbstractCegarLoop]: === Iteration 13 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:05,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:05,209 INFO L82 PathProgramCache]: Analyzing trace with hash -566603171, now seen corresponding path program 1 times [2018-11-18 13:44:05,209 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:05,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:05,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:05,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:05,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:05,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:44:05,368 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:44:05,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:05,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:44:05,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:05,430 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:05,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:05,447 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,450 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,454 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:05,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:05,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:05,468 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,472 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,475 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,481 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,481 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:32, output treesize:18 [2018-11-18 13:44:05,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:44:05,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:44:05,506 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,508 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:44:05,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:44:05,514 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,516 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:05,518 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 13:44:05,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:05,546 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:44:05,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2018-11-18 13:44:05,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 13:44:05,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 13:44:05,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:44:05,547 INFO L87 Difference]: Start difference. First operand 216 states and 244 transitions. Second operand 11 states. [2018-11-18 13:44:05,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:05,740 INFO L93 Difference]: Finished difference Result 292 states and 334 transitions. [2018-11-18 13:44:05,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 13:44:05,741 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2018-11-18 13:44:05,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:05,742 INFO L225 Difference]: With dead ends: 292 [2018-11-18 13:44:05,742 INFO L226 Difference]: Without dead ends: 184 [2018-11-18 13:44:05,743 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 45 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:44:05,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-11-18 13:44:05,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 179. [2018-11-18 13:44:05,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-18 13:44:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 201 transitions. [2018-11-18 13:44:05,755 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 201 transitions. Word has length 49 [2018-11-18 13:44:05,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:05,755 INFO L480 AbstractCegarLoop]: Abstraction has 179 states and 201 transitions. [2018-11-18 13:44:05,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 13:44:05,755 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 201 transitions. [2018-11-18 13:44:05,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 13:44:05,756 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:05,756 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:05,756 INFO L423 AbstractCegarLoop]: === Iteration 14 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:05,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:05,756 INFO L82 PathProgramCache]: Analyzing trace with hash 725428058, now seen corresponding path program 1 times [2018-11-18 13:44:05,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:05,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:05,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:05,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:05,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:05,878 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:44:05,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:05,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 13:44:05,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:44:05,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:44:05,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:44:05,879 INFO L87 Difference]: Start difference. First operand 179 states and 201 transitions. Second operand 10 states. [2018-11-18 13:44:06,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:06,072 INFO L93 Difference]: Finished difference Result 210 states and 236 transitions. [2018-11-18 13:44:06,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 13:44:06,073 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2018-11-18 13:44:06,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:06,074 INFO L225 Difference]: With dead ends: 210 [2018-11-18 13:44:06,074 INFO L226 Difference]: Without dead ends: 207 [2018-11-18 13:44:06,074 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-11-18 13:44:06,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-11-18 13:44:06,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 195. [2018-11-18 13:44:06,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-11-18 13:44:06,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 219 transitions. [2018-11-18 13:44:06,083 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 219 transitions. Word has length 53 [2018-11-18 13:44:06,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:06,083 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 219 transitions. [2018-11-18 13:44:06,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:44:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 219 transitions. [2018-11-18 13:44:06,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 13:44:06,084 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:06,084 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:06,085 INFO L423 AbstractCegarLoop]: === Iteration 15 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:06,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:06,085 INFO L82 PathProgramCache]: Analyzing trace with hash 2133323910, now seen corresponding path program 1 times [2018-11-18 13:44:06,085 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:06,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:06,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:06,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:06,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:06,148 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:06,148 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:06,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:44:06,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:44:06,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:44:06,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:44:06,149 INFO L87 Difference]: Start difference. First operand 195 states and 219 transitions. Second operand 6 states. [2018-11-18 13:44:06,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:06,243 INFO L93 Difference]: Finished difference Result 262 states and 304 transitions. [2018-11-18 13:44:06,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:44:06,244 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2018-11-18 13:44:06,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:06,245 INFO L225 Difference]: With dead ends: 262 [2018-11-18 13:44:06,245 INFO L226 Difference]: Without dead ends: 208 [2018-11-18 13:44:06,245 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:44:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-11-18 13:44:06,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 201. [2018-11-18 13:44:06,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-11-18 13:44:06,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 227 transitions. [2018-11-18 13:44:06,260 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 227 transitions. Word has length 58 [2018-11-18 13:44:06,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:06,260 INFO L480 AbstractCegarLoop]: Abstraction has 201 states and 227 transitions. [2018-11-18 13:44:06,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:44:06,261 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 227 transitions. [2018-11-18 13:44:06,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 13:44:06,264 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:06,264 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:06,264 INFO L423 AbstractCegarLoop]: === Iteration 16 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:06,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:06,264 INFO L82 PathProgramCache]: Analyzing trace with hash 216813672, now seen corresponding path program 2 times [2018-11-18 13:44:06,264 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:06,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:06,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:06,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:06,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:06,476 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:06,476 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:44:06,476 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:44:06,486 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 13:44:06,505 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 13:44:06,506 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:44:06,508 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:44:06,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 13:44:06,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-18 13:44:06,582 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:06,584 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:06,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 13:44:06,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-18 13:44:06,589 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:06,590 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:06,592 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:06,592 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:37, output treesize:7 [2018-11-18 13:44:06,605 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 13:44:06,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:44:06,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2018-11-18 13:44:06,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 13:44:06,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 13:44:06,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2018-11-18 13:44:06,622 INFO L87 Difference]: Start difference. First operand 201 states and 227 transitions. Second operand 17 states. [2018-11-18 13:44:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:07,071 INFO L93 Difference]: Finished difference Result 272 states and 313 transitions. [2018-11-18 13:44:07,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 13:44:07,072 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 57 [2018-11-18 13:44:07,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:07,073 INFO L225 Difference]: With dead ends: 272 [2018-11-18 13:44:07,073 INFO L226 Difference]: Without dead ends: 181 [2018-11-18 13:44:07,074 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2018-11-18 13:44:07,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-11-18 13:44:07,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2018-11-18 13:44:07,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-11-18 13:44:07,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 193 transitions. [2018-11-18 13:44:07,086 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 193 transitions. Word has length 57 [2018-11-18 13:44:07,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:07,086 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 193 transitions. [2018-11-18 13:44:07,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 13:44:07,087 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 193 transitions. [2018-11-18 13:44:07,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 13:44:07,087 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:07,087 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:07,087 INFO L423 AbstractCegarLoop]: === Iteration 17 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:07,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:07,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1580676675, now seen corresponding path program 2 times [2018-11-18 13:44:07,088 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:07,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:07,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:07,089 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:44:07,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:07,513 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:44:07,513 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:44:07,521 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 13:44:07,541 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 13:44:07,541 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:44:07,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:44:07,570 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:44:07,570 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,573 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 13:44:07,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:07,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:07,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:07,607 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,610 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,622 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,633 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,633 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:27, output treesize:17 [2018-11-18 13:44:07,642 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:07,643 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:07,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:44:07,644 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,651 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,651 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:26 [2018-11-18 13:44:07,677 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:07,682 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:07,682 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:07,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:44:07,684 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 13:44:07,697 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:44:07,697 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,701 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,709 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,709 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:34 [2018-11-18 13:44:07,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2018-11-18 13:44:07,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:07,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:07,754 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,764 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,790 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:07,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:07,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:07,796 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,799 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,802 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,812 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,812 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:59, output treesize:66 [2018-11-18 13:44:07,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-11-18 13:44:07,913 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-11-18 13:44:07,913 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:44:07,916 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:44:07,924 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. [2018-11-18 13:44:07,924 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:62 [2018-11-18 13:44:07,965 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-11-18 13:44:07,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 13:44:07,969 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:44:07,975 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:44:07,980 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,982 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:07,983 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:63, output treesize:4 [2018-11-18 13:44:08,002 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:08,018 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:44:08,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 23 [2018-11-18 13:44:08,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-18 13:44:08,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-18 13:44:08,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2018-11-18 13:44:08,018 INFO L87 Difference]: Start difference. First operand 172 states and 193 transitions. Second operand 23 states. [2018-11-18 13:44:08,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:08,745 INFO L93 Difference]: Finished difference Result 212 states and 238 transitions. [2018-11-18 13:44:08,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 13:44:08,746 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 56 [2018-11-18 13:44:08,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:08,747 INFO L225 Difference]: With dead ends: 212 [2018-11-18 13:44:08,747 INFO L226 Difference]: Without dead ends: 209 [2018-11-18 13:44:08,748 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 50 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=789, Unknown=0, NotChecked=0, Total=930 [2018-11-18 13:44:08,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-11-18 13:44:08,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 184. [2018-11-18 13:44:08,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-11-18 13:44:08,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 206 transitions. [2018-11-18 13:44:08,757 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 206 transitions. Word has length 56 [2018-11-18 13:44:08,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:08,757 INFO L480 AbstractCegarLoop]: Abstraction has 184 states and 206 transitions. [2018-11-18 13:44:08,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-18 13:44:08,758 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 206 transitions. [2018-11-18 13:44:08,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 13:44:08,758 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:08,758 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:08,759 INFO L423 AbstractCegarLoop]: === Iteration 18 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:08,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:08,759 INFO L82 PathProgramCache]: Analyzing trace with hash -324258611, now seen corresponding path program 1 times [2018-11-18 13:44:08,759 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:08,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:08,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:08,760 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:44:08,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:09,025 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:09,025 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:44:09,026 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:44:09,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:09,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:44:09,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:44:09,087 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,091 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 13:44:09,111 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:09,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:09,117 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:09,117 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,121 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,127 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:09,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:09,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:09,142 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,146 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,149 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,157 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2018-11-18 13:44:09,181 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:09,182 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:09,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-18 13:44:09,183 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,189 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,189 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:25 [2018-11-18 13:44:09,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 13:44:09,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:44:09,257 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,261 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,275 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 13:44:09,277 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:44:09,277 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,283 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,294 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,294 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:54, output treesize:46 [2018-11-18 13:44:09,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 60 [2018-11-18 13:44:09,357 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-18 13:44:09,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2018-11-18 13:44:09,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:09,402 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,408 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,430 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,454 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:09,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 70 [2018-11-18 13:44:09,484 INFO L477 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-18 13:44:09,552 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:09,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 40 [2018-11-18 13:44:09,553 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,579 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:44:09,579 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,595 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2018-11-18 13:44:09,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:09,664 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,670 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2018-11-18 13:44:09,707 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:09,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-18 13:44:09,708 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,716 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:09,767 INFO L267 ElimStorePlain]: Start of recursive call 6: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:44:09,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:44:09,805 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 4 variables, input treesize:68, output treesize:220 [2018-11-18 13:44:10,152 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:10,153 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:44:10,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 81 [2018-11-18 13:44:10,163 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:44:10,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-11-18 13:44:10,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,179 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,228 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:10,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 70 [2018-11-18 13:44:10,232 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:44:10,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-18 13:44:10,233 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 3 [2018-11-18 13:44:10,246 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,253 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,284 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:10,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 111 treesize of output 119 [2018-11-18 13:44:10,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 98 [2018-11-18 13:44:10,293 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,331 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:44:10,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 74 [2018-11-18 13:44:10,332 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,357 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:44:10,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 72 [2018-11-18 13:44:10,358 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,373 INFO L267 ElimStorePlain]: Start of recursive call 7: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 13:44:10,398 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 6 variables, input treesize:276, output treesize:153 [2018-11-18 13:44:10,531 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:10,531 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:10,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2018-11-18 13:44:10,541 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2018-11-18 13:44:10,543 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 13:44:10,556 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:44:10,556 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,559 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:10,562 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:42, output treesize:4 [2018-11-18 13:44:10,578 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:10,593 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:44:10,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 26 [2018-11-18 13:44:10,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-18 13:44:10,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-18 13:44:10,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2018-11-18 13:44:10,594 INFO L87 Difference]: Start difference. First operand 184 states and 206 transitions. Second operand 26 states. [2018-11-18 13:44:11,427 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2018-11-18 13:44:11,801 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2018-11-18 13:44:11,987 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2018-11-18 13:44:12,415 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 131 [2018-11-18 13:44:12,634 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 73 [2018-11-18 13:44:12,883 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 77 [2018-11-18 13:44:13,112 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 76 [2018-11-18 13:44:13,453 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 78 [2018-11-18 13:44:13,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:13,578 INFO L93 Difference]: Finished difference Result 354 states and 402 transitions. [2018-11-18 13:44:13,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-18 13:44:13,579 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 56 [2018-11-18 13:44:13,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:13,580 INFO L225 Difference]: With dead ends: 354 [2018-11-18 13:44:13,580 INFO L226 Difference]: Without dead ends: 275 [2018-11-18 13:44:13,580 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=315, Invalid=2235, Unknown=0, NotChecked=0, Total=2550 [2018-11-18 13:44:13,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-11-18 13:44:13,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 251. [2018-11-18 13:44:13,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2018-11-18 13:44:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 277 transitions. [2018-11-18 13:44:13,597 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 277 transitions. Word has length 56 [2018-11-18 13:44:13,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:13,597 INFO L480 AbstractCegarLoop]: Abstraction has 251 states and 277 transitions. [2018-11-18 13:44:13,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-18 13:44:13,598 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 277 transitions. [2018-11-18 13:44:13,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 13:44:13,598 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:13,598 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:13,599 INFO L423 AbstractCegarLoop]: === Iteration 19 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:13,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:13,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1386217535, now seen corresponding path program 1 times [2018-11-18 13:44:13,599 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:13,599 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:13,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:13,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:13,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:44:13,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:13,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 13:44:13,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:44:13,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:44:13,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:44:13,671 INFO L87 Difference]: Start difference. First operand 251 states and 277 transitions. Second operand 10 states. [2018-11-18 13:44:13,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:13,857 INFO L93 Difference]: Finished difference Result 293 states and 333 transitions. [2018-11-18 13:44:13,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:44:13,858 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2018-11-18 13:44:13,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:13,859 INFO L225 Difference]: With dead ends: 293 [2018-11-18 13:44:13,859 INFO L226 Difference]: Without dead ends: 290 [2018-11-18 13:44:13,860 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-11-18 13:44:13,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2018-11-18 13:44:13,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 268. [2018-11-18 13:44:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-11-18 13:44:13,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 302 transitions. [2018-11-18 13:44:13,880 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 302 transitions. Word has length 59 [2018-11-18 13:44:13,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:13,881 INFO L480 AbstractCegarLoop]: Abstraction has 268 states and 302 transitions. [2018-11-18 13:44:13,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:44:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 302 transitions. [2018-11-18 13:44:13,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 13:44:13,884 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:13,884 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:13,884 INFO L423 AbstractCegarLoop]: === Iteration 20 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:13,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:13,884 INFO L82 PathProgramCache]: Analyzing trace with hash 87686023, now seen corresponding path program 1 times [2018-11-18 13:44:13,885 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:13,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:13,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:13,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:13,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:44:14,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:14,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 13:44:14,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:44:14,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:44:14,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:44:14,014 INFO L87 Difference]: Start difference. First operand 268 states and 302 transitions. Second operand 10 states. [2018-11-18 13:44:14,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:14,268 INFO L93 Difference]: Finished difference Result 285 states and 322 transitions. [2018-11-18 13:44:14,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 13:44:14,268 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2018-11-18 13:44:14,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:14,269 INFO L225 Difference]: With dead ends: 285 [2018-11-18 13:44:14,269 INFO L226 Difference]: Without dead ends: 280 [2018-11-18 13:44:14,270 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-11-18 13:44:14,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2018-11-18 13:44:14,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 272. [2018-11-18 13:44:14,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2018-11-18 13:44:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 306 transitions. [2018-11-18 13:44:14,282 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 306 transitions. Word has length 59 [2018-11-18 13:44:14,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:14,282 INFO L480 AbstractCegarLoop]: Abstraction has 272 states and 306 transitions. [2018-11-18 13:44:14,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:44:14,283 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 306 transitions. [2018-11-18 13:44:14,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 13:44:14,283 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:14,283 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:14,284 INFO L423 AbstractCegarLoop]: === Iteration 21 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:14,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:14,284 INFO L82 PathProgramCache]: Analyzing trace with hash -255671816, now seen corresponding path program 1 times [2018-11-18 13:44:14,284 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:14,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:14,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:14,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:14,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:15,054 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 35 [2018-11-18 13:44:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:15,286 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:44:15,286 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:44:15,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:15,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:44:15,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:44:15,317 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,322 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,322 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 13:44:15,328 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,329 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:44:15,329 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:44:15,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:44:15,345 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,347 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:44:15,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:44:15,357 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,359 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,365 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:45, output treesize:35 [2018-11-18 13:44:15,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:44:15,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:44:15,409 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,410 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:44:15,410 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,414 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,419 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,433 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:44:15,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:44:15,436 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:44:15,437 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,441 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,444 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,454 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,454 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:90, output treesize:55 [2018-11-18 13:44:15,478 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,479 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,479 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,480 INFO L477 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 26 treesize of output 46 [2018-11-18 13:44:15,480 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,490 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:66, output treesize:72 [2018-11-18 13:44:15,519 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,520 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,521 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,522 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,522 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 37 [2018-11-18 13:44:15,523 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2018-11-18 13:44:15,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:44:15,550 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,561 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 47 [2018-11-18 13:44:15,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:44:15,588 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,602 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,616 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,616 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:102, output treesize:86 [2018-11-18 13:44:15,658 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,659 INFO L477 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 92 [2018-11-18 13:44:15,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-18 13:44:15,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-18 13:44:15,664 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,669 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,681 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,701 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 81 [2018-11-18 13:44:15,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:15,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:15,713 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,717 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,727 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,743 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,743 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:111, output treesize:146 [2018-11-18 13:44:15,912 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,912 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,913 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,914 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:44:15,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,919 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:15,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 190 [2018-11-18 13:44:15,924 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:44:15,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 13:44:15,925 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-11-18 13:44:15,948 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:15,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 48 [2018-11-18 13:44:15,963 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:44:15,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 65 [2018-11-18 13:44:15,981 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:44:15,994 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-18 13:44:16,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 63 [2018-11-18 13:44:16,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 13:44:16,013 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:16,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-11-18 13:44:16,024 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:16,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-18 13:44:16,030 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:16,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-11-18 13:44:16,035 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:16,038 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:16,045 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:16,045 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:205, output treesize:7 [2018-11-18 13:44:16,078 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:16,094 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:44:16,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 22 [2018-11-18 13:44:16,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-18 13:44:16,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-18 13:44:16,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2018-11-18 13:44:16,095 INFO L87 Difference]: Start difference. First operand 272 states and 306 transitions. Second operand 22 states. [2018-11-18 13:44:16,283 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2018-11-18 13:44:16,731 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 100 [2018-11-18 13:44:16,911 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 92 [2018-11-18 13:44:17,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:17,749 INFO L93 Difference]: Finished difference Result 301 states and 339 transitions. [2018-11-18 13:44:17,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 13:44:17,750 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 59 [2018-11-18 13:44:17,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:17,751 INFO L225 Difference]: With dead ends: 301 [2018-11-18 13:44:17,752 INFO L226 Difference]: Without dead ends: 298 [2018-11-18 13:44:17,752 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 51 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=140, Invalid=790, Unknown=0, NotChecked=0, Total=930 [2018-11-18 13:44:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2018-11-18 13:44:17,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 275. [2018-11-18 13:44:17,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-11-18 13:44:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 308 transitions. [2018-11-18 13:44:17,766 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 308 transitions. Word has length 59 [2018-11-18 13:44:17,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:17,766 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 308 transitions. [2018-11-18 13:44:17,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-18 13:44:17,766 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 308 transitions. [2018-11-18 13:44:17,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 13:44:17,767 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:17,767 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:17,767 INFO L423 AbstractCegarLoop]: === Iteration 22 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:17,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:17,768 INFO L82 PathProgramCache]: Analyzing trace with hash -845031822, now seen corresponding path program 1 times [2018-11-18 13:44:17,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:17,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:17,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:17,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:17,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:18,425 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:18,425 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:44:18,425 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:44:18,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:18,459 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:44:18,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:44:18,496 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,500 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,500 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 13:44:18,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:18,531 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:18,533 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:18,534 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,536 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:18,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:18,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:18,551 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,553 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,556 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,563 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,563 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2018-11-18 13:44:18,583 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:18,584 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:18,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:44:18,584 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,591 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:32 [2018-11-18 13:44:18,614 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:18,615 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:18,615 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:18,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:44:18,616 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 13:44:18,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:44:18,633 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,636 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 13:44:18,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:44:18,652 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,656 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,666 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,666 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:62, output treesize:47 [2018-11-18 13:44:18,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2018-11-18 13:44:18,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:18,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:18,714 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,717 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,723 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 46 [2018-11-18 13:44:18,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:18,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:18,744 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,747 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,753 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,765 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,765 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:72, output treesize:91 [2018-11-18 13:44:18,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 93 [2018-11-18 13:44:18,905 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:44:18,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 13:44:18,906 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 44 [2018-11-18 13:44:18,917 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:44:18,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-11-18 13:44:18,925 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,932 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:44:18,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2018-11-18 13:44:18,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 13:44:18,944 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-18 13:44:18,949 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:44:18,953 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,955 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,959 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:18,959 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:122, output treesize:7 [2018-11-18 13:44:18,990 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:19,005 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:44:19,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 25 [2018-11-18 13:44:19,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-18 13:44:19,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-18 13:44:19,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=544, Unknown=2, NotChecked=0, Total=600 [2018-11-18 13:44:19,006 INFO L87 Difference]: Start difference. First operand 275 states and 308 transitions. Second operand 25 states. [2018-11-18 13:44:19,676 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 96 [2018-11-18 13:44:21,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:21,558 INFO L93 Difference]: Finished difference Result 293 states and 330 transitions. [2018-11-18 13:44:21,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 13:44:21,559 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 59 [2018-11-18 13:44:21,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:21,560 INFO L225 Difference]: With dead ends: 293 [2018-11-18 13:44:21,560 INFO L226 Difference]: Without dead ends: 275 [2018-11-18 13:44:21,561 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 53 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=244, Invalid=1916, Unknown=2, NotChecked=0, Total=2162 [2018-11-18 13:44:21,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-11-18 13:44:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 263. [2018-11-18 13:44:21,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-11-18 13:44:21,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 294 transitions. [2018-11-18 13:44:21,582 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 294 transitions. Word has length 59 [2018-11-18 13:44:21,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:21,582 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 294 transitions. [2018-11-18 13:44:21,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-18 13:44:21,583 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 294 transitions. [2018-11-18 13:44:21,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 13:44:21,583 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:21,583 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:21,583 INFO L423 AbstractCegarLoop]: === Iteration 23 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:21,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:21,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1567420891, now seen corresponding path program 1 times [2018-11-18 13:44:21,584 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:21,584 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:21,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:21,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:21,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:44:21,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:44:21,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 13:44:21,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:44:21,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:44:21,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:44:21,678 INFO L87 Difference]: Start difference. First operand 263 states and 294 transitions. Second operand 10 states. [2018-11-18 13:44:21,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:44:21,906 INFO L93 Difference]: Finished difference Result 272 states and 305 transitions. [2018-11-18 13:44:21,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 13:44:21,906 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2018-11-18 13:44:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:44:21,907 INFO L225 Difference]: With dead ends: 272 [2018-11-18 13:44:21,907 INFO L226 Difference]: Without dead ends: 250 [2018-11-18 13:44:21,908 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-11-18 13:44:21,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-11-18 13:44:21,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2018-11-18 13:44:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-11-18 13:44:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 276 transitions. [2018-11-18 13:44:21,920 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 276 transitions. Word has length 62 [2018-11-18 13:44:21,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:44:21,921 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 276 transitions. [2018-11-18 13:44:21,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:44:21,921 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 276 transitions. [2018-11-18 13:44:21,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 13:44:21,921 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:44:21,922 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:44:21,922 INFO L423 AbstractCegarLoop]: === Iteration 24 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:44:21,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:21,922 INFO L82 PathProgramCache]: Analyzing trace with hash 895731535, now seen corresponding path program 1 times [2018-11-18 13:44:21,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:44:21,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:44:21,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:21,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:21,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:44:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:22,122 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:22,122 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:44:22,122 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:44:22,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:44:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:22,152 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:44:22,173 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:44:22,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:44:22,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:44:22,177 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:22,180 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:22,183 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:22,188 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:22,188 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:22, output treesize:12 [2018-11-18 13:44:28,766 WARN L180 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-18 13:44:31,221 WARN L180 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-18 13:44:31,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-11-18 13:44:31,227 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:44:31,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-11-18 13:44:31,229 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:31,232 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:31,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:31,237 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:12 [2018-11-18 13:44:31,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-18 13:44:31,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:44:31,293 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:44:31,294 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:31,295 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:44:31,295 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-18 13:44:31,311 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:44:31,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:44:31,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 22 [2018-11-18 13:44:31,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-18 13:44:31,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-18 13:44:31,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=405, Unknown=4, NotChecked=0, Total=462 [2018-11-18 13:44:31,331 INFO L87 Difference]: Start difference. First operand 246 states and 276 transitions. Second operand 22 states. [2018-11-18 13:44:44,978 WARN L180 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2018-11-18 13:45:00,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:45:00,254 INFO L93 Difference]: Finished difference Result 312 states and 359 transitions. [2018-11-18 13:45:00,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-18 13:45:00,255 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2018-11-18 13:45:00,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:45:00,256 INFO L225 Difference]: With dead ends: 312 [2018-11-18 13:45:00,256 INFO L226 Difference]: Without dead ends: 309 [2018-11-18 13:45:00,257 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 58 SyntacticMatches, 9 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=144, Invalid=973, Unknown=5, NotChecked=0, Total=1122 [2018-11-18 13:45:00,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2018-11-18 13:45:00,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 275. [2018-11-18 13:45:00,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-11-18 13:45:00,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 317 transitions. [2018-11-18 13:45:00,281 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 317 transitions. Word has length 65 [2018-11-18 13:45:00,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:45:00,282 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 317 transitions. [2018-11-18 13:45:00,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-18 13:45:00,282 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 317 transitions. [2018-11-18 13:45:00,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 13:45:00,283 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:45:00,283 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:45:00,283 INFO L423 AbstractCegarLoop]: === Iteration 25 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:45:00,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:45:00,284 INFO L82 PathProgramCache]: Analyzing trace with hash -782237263, now seen corresponding path program 1 times [2018-11-18 13:45:00,284 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:45:00,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:45:00,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:00,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:45:00,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:45:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 13:45:00,364 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:45:00,364 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:45:00,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:45:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:45:00,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:45:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 13:45:00,487 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:45:00,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 10 [2018-11-18 13:45:00,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:45:00,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:45:00,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:45:00,488 INFO L87 Difference]: Start difference. First operand 275 states and 317 transitions. Second operand 10 states. [2018-11-18 13:45:00,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:45:00,634 INFO L93 Difference]: Finished difference Result 354 states and 413 transitions. [2018-11-18 13:45:00,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 13:45:00,636 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2018-11-18 13:45:00,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:45:00,637 INFO L225 Difference]: With dead ends: 354 [2018-11-18 13:45:00,637 INFO L226 Difference]: Without dead ends: 271 [2018-11-18 13:45:00,638 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 66 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-11-18 13:45:00,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2018-11-18 13:45:00,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 266. [2018-11-18 13:45:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2018-11-18 13:45:00,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 298 transitions. [2018-11-18 13:45:00,657 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 298 transitions. Word has length 70 [2018-11-18 13:45:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:45:00,657 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 298 transitions. [2018-11-18 13:45:00,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:45:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 298 transitions. [2018-11-18 13:45:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-18 13:45:00,658 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:45:00,659 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:45:00,659 INFO L423 AbstractCegarLoop]: === Iteration 26 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:45:00,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:45:00,659 INFO L82 PathProgramCache]: Analyzing trace with hash -100397124, now seen corresponding path program 1 times [2018-11-18 13:45:00,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:45:00,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:45:00,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:00,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:45:00,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:45:00,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 13:45:00,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:45:00,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:45:00,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:45:00,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:45:00,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:45:00,705 INFO L87 Difference]: Start difference. First operand 266 states and 298 transitions. Second operand 5 states. [2018-11-18 13:45:00,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:45:00,784 INFO L93 Difference]: Finished difference Result 268 states and 299 transitions. [2018-11-18 13:45:00,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:45:00,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2018-11-18 13:45:00,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:45:00,787 INFO L225 Difference]: With dead ends: 268 [2018-11-18 13:45:00,787 INFO L226 Difference]: Without dead ends: 248 [2018-11-18 13:45:00,787 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:45:00,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-11-18 13:45:00,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 245. [2018-11-18 13:45:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2018-11-18 13:45:00,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 274 transitions. [2018-11-18 13:45:00,806 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 274 transitions. Word has length 71 [2018-11-18 13:45:00,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:45:00,807 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 274 transitions. [2018-11-18 13:45:00,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:45:00,807 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 274 transitions. [2018-11-18 13:45:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-18 13:45:00,808 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:45:00,808 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:45:00,808 INFO L423 AbstractCegarLoop]: === Iteration 27 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:45:00,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:45:00,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1478485260, now seen corresponding path program 1 times [2018-11-18 13:45:00,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:45:00,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:45:00,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:00,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:45:00,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:45:00,900 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 13:45:00,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:45:00,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 13:45:00,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 13:45:00,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 13:45:00,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:45:00,901 INFO L87 Difference]: Start difference. First operand 245 states and 274 transitions. Second operand 9 states. [2018-11-18 13:45:01,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:45:01,042 INFO L93 Difference]: Finished difference Result 269 states and 306 transitions. [2018-11-18 13:45:01,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 13:45:01,047 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2018-11-18 13:45:01,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:45:01,048 INFO L225 Difference]: With dead ends: 269 [2018-11-18 13:45:01,048 INFO L226 Difference]: Without dead ends: 266 [2018-11-18 13:45:01,049 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-11-18 13:45:01,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-11-18 13:45:01,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 249. [2018-11-18 13:45:01,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2018-11-18 13:45:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 279 transitions. [2018-11-18 13:45:01,072 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 279 transitions. Word has length 72 [2018-11-18 13:45:01,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:45:01,073 INFO L480 AbstractCegarLoop]: Abstraction has 249 states and 279 transitions. [2018-11-18 13:45:01,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 13:45:01,073 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 279 transitions. [2018-11-18 13:45:01,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-18 13:45:01,074 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:45:01,074 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:45:01,074 INFO L423 AbstractCegarLoop]: === Iteration 28 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:45:01,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:45:01,075 INFO L82 PathProgramCache]: Analyzing trace with hash -503104255, now seen corresponding path program 1 times [2018-11-18 13:45:01,075 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:45:01,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:45:01,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:01,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:45:01,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:45:01,183 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:45:01,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:45:01,183 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/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 [2018-11-18 13:45:01,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:45:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:45:01,244 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:45:01,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:45:01,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:01,275 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:01,275 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,279 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,283 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:45:01,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:01,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:01,296 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,299 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,302 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,309 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,309 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:32, output treesize:18 [2018-11-18 13:45:01,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:45:01,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:45:01,362 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,366 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:45:01,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:45:01,373 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,375 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:01,377 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 13:45:01,398 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:45:01,419 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:45:01,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 17 [2018-11-18 13:45:01,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 13:45:01,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 13:45:01,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2018-11-18 13:45:01,420 INFO L87 Difference]: Start difference. First operand 249 states and 279 transitions. Second operand 17 states. [2018-11-18 13:45:02,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:45:02,038 INFO L93 Difference]: Finished difference Result 384 states and 471 transitions. [2018-11-18 13:45:02,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 13:45:02,039 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 77 [2018-11-18 13:45:02,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:45:02,040 INFO L225 Difference]: With dead ends: 384 [2018-11-18 13:45:02,040 INFO L226 Difference]: Without dead ends: 277 [2018-11-18 13:45:02,041 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2018-11-18 13:45:02,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2018-11-18 13:45:02,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 262. [2018-11-18 13:45:02,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-11-18 13:45:02,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 313 transitions. [2018-11-18 13:45:02,069 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 313 transitions. Word has length 77 [2018-11-18 13:45:02,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:45:02,069 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 313 transitions. [2018-11-18 13:45:02,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 13:45:02,069 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 313 transitions. [2018-11-18 13:45:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-18 13:45:02,070 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:45:02,070 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:45:02,070 INFO L423 AbstractCegarLoop]: === Iteration 29 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:45:02,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:45:02,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1282462675, now seen corresponding path program 3 times [2018-11-18 13:45:02,071 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:45:02,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:45:02,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:02,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:45:02,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:45:02,876 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:45:02,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:45:02,876 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:45:02,884 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 13:45:02,919 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-18 13:45:02,919 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:45:02,922 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:45:02,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:45:02,949 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:02,953 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:02,953 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 13:45:02,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:45:02,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:02,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:02,977 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:02,980 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:02,982 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:02,987 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:02,987 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:27, output treesize:17 [2018-11-18 13:45:02,992 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:02,993 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:02,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:45:02,994 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,000 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:26 [2018-11-18 13:45:03,023 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,023 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,024 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,025 INFO L477 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 22 treesize of output 34 [2018-11-18 13:45:03,025 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 13:45:03,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:03,042 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,045 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,055 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:51, output treesize:49 [2018-11-18 13:45:03,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2018-11-18 13:45:03,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:03,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:03,096 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,100 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,108 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:45:03,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:03,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:03,130 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,135 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,138 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,152 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,152 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:74, output treesize:89 [2018-11-18 13:45:03,185 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,186 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,187 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,188 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 83 [2018-11-18 13:45:03,189 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,206 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:114 [2018-11-18 13:45:03,248 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,250 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,254 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,255 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,256 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 73 [2018-11-18 13:45:03,258 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 35 [2018-11-18 13:45:03,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:03,301 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,308 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 106 [2018-11-18 13:45:03,350 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:03,350 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,366 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,392 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:144, output treesize:127 [2018-11-18 13:45:03,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 53 [2018-11-18 13:45:03,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:03,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:03,478 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,484 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,495 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,541 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,543 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 136 [2018-11-18 13:45:03,546 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-18 13:45:03,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-18 13:45:03,550 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,556 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,579 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,612 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,613 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:152, output treesize:219 [2018-11-18 13:45:03,937 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:03,944 INFO L477 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 100 [2018-11-18 13:45:03,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 13:45:03,949 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:03,967 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:03,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-18 13:45:03,969 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:03,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2018-11-18 13:45:03,978 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:03,983 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:04,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:04,000 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:250, output treesize:185 [2018-11-18 13:45:04,071 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:04,079 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:04,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 118 [2018-11-18 13:45:04,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:45:04,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:04,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2018-11-18 13:45:04,106 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:04,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 13:45:04,115 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:04,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:45:04,120 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:04,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:45:04,124 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:04,126 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:04,127 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:04,127 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:186, output treesize:4 [2018-11-18 13:45:04,173 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:45:04,198 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:45:04,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 31 [2018-11-18 13:45:04,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-11-18 13:45:04,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-11-18 13:45:04,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2018-11-18 13:45:04,199 INFO L87 Difference]: Start difference. First operand 262 states and 313 transitions. Second operand 31 states. [2018-11-18 13:45:04,974 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 87 [2018-11-18 13:45:05,146 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 89 [2018-11-18 13:45:05,500 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 107 [2018-11-18 13:45:06,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:45:06,574 INFO L93 Difference]: Finished difference Result 308 states and 366 transitions. [2018-11-18 13:45:06,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 13:45:06,576 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 78 [2018-11-18 13:45:06,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:45:06,577 INFO L225 Difference]: With dead ends: 308 [2018-11-18 13:45:06,577 INFO L226 Difference]: Without dead ends: 305 [2018-11-18 13:45:06,577 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 69 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=257, Invalid=1635, Unknown=0, NotChecked=0, Total=1892 [2018-11-18 13:45:06,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2018-11-18 13:45:06,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 274. [2018-11-18 13:45:06,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2018-11-18 13:45:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 326 transitions. [2018-11-18 13:45:06,598 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 326 transitions. Word has length 78 [2018-11-18 13:45:06,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:45:06,599 INFO L480 AbstractCegarLoop]: Abstraction has 274 states and 326 transitions. [2018-11-18 13:45:06,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-11-18 13:45:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 326 transitions. [2018-11-18 13:45:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-18 13:45:06,599 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:45:06,600 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:45:06,600 INFO L423 AbstractCegarLoop]: === Iteration 30 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:45:06,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:45:06,600 INFO L82 PathProgramCache]: Analyzing trace with hash -622472611, now seen corresponding path program 2 times [2018-11-18 13:45:06,600 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:45:06,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:45:06,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:06,601 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:45:06,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:45:07,232 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 9 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:45:07,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:45:07,232 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:45:07,239 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 13:45:07,267 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 13:45:07,267 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:45:07,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:45:07,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:45:07,288 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,292 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,292 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 13:45:07,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:45:07,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:07,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:07,318 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,321 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,325 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:45:07,334 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:07,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:07,337 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,340 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,343 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,349 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,349 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2018-11-18 13:45:07,380 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,381 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:45:07,382 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,389 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,389 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:35 [2018-11-18 13:45:07,452 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,453 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,454 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-18 13:45:07,455 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,479 INFO L477 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 19 treesize of output 20 [2018-11-18 13:45:07,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:07,481 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,485 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,505 INFO L477 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 19 treesize of output 20 [2018-11-18 13:45:07,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:07,507 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,511 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,526 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,526 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:75, output treesize:69 [2018-11-18 13:45:07,575 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 50 [2018-11-18 13:45:07,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-18 13:45:07,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-18 13:45:07,581 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,586 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,596 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,622 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,629 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 46 [2018-11-18 13:45:07,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:07,634 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:07,634 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,638 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,647 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,668 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:91, output treesize:113 [2018-11-18 13:45:07,717 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,719 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,720 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,722 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,723 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 35 treesize of output 83 [2018-11-18 13:45:07,724 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,752 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:124, output treesize:138 [2018-11-18 13:45:07,814 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,816 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,818 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,820 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,821 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,823 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,824 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 73 [2018-11-18 13:45:07,824 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,866 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,868 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 139 [2018-11-18 13:45:07,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:07,880 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,902 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,932 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:07,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 93 [2018-11-18 13:45:07,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:07,944 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,957 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:07,987 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:165, output treesize:148 [2018-11-18 13:45:08,060 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,066 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 159 [2018-11-18 13:45:08,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:45:08,087 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:45:08,089 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:08,095 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:08,126 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:08,167 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 145 [2018-11-18 13:45:08,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:45:08,185 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:45:08,186 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:08,191 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:08,209 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:08,239 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:08,239 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:177, output treesize:288 [2018-11-18 13:45:08,824 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,825 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,826 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,827 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,827 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,828 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:08,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 218 [2018-11-18 13:45:08,842 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:08,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-18 13:45:08,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:08,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-11-18 13:45:08,872 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:08,884 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:08,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2018-11-18 13:45:08,886 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:08,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:45:08,897 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:08,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:08,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:08,933 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:348, output treesize:230 [2018-11-18 13:45:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:45:09,145 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:45:09,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17] total 35 [2018-11-18 13:45:09,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-11-18 13:45:09,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-11-18 13:45:09,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1100, Unknown=0, NotChecked=0, Total=1190 [2018-11-18 13:45:09,146 INFO L87 Difference]: Start difference. First operand 274 states and 326 transitions. Second operand 35 states. [2018-11-18 13:45:16,186 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2018-11-18 13:45:20,524 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 90 [2018-11-18 13:45:25,286 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 86 [2018-11-18 13:45:25,673 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2018-11-18 13:45:28,291 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 127 [2018-11-18 13:45:35,674 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 136 [2018-11-18 13:45:35,877 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 138 [2018-11-18 13:45:36,792 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2018-11-18 13:45:37,274 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 136 [2018-11-18 13:45:38,409 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 142 [2018-11-18 13:45:41,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:45:41,103 INFO L93 Difference]: Finished difference Result 539 states and 652 transitions. [2018-11-18 13:45:41,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-18 13:45:41,105 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 78 [2018-11-18 13:45:41,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:45:41,107 INFO L225 Difference]: With dead ends: 539 [2018-11-18 13:45:41,107 INFO L226 Difference]: Without dead ends: 384 [2018-11-18 13:45:41,109 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 68 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=362, Invalid=3420, Unknown=0, NotChecked=0, Total=3782 [2018-11-18 13:45:41,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-11-18 13:45:41,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 352. [2018-11-18 13:45:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2018-11-18 13:45:41,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 407 transitions. [2018-11-18 13:45:41,150 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 407 transitions. Word has length 78 [2018-11-18 13:45:41,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:45:41,150 INFO L480 AbstractCegarLoop]: Abstraction has 352 states and 407 transitions. [2018-11-18 13:45:41,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-11-18 13:45:41,150 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 407 transitions. [2018-11-18 13:45:41,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-18 13:45:41,151 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:45:41,151 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:45:41,152 INFO L423 AbstractCegarLoop]: === Iteration 31 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:45:41,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:45:41,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1938389608, now seen corresponding path program 2 times [2018-11-18 13:45:41,152 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:45:41,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:45:41,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:41,153 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:45:41,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:45:41,751 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2018-11-18 13:45:41,879 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2018-11-18 13:45:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:45:42,933 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:45:42,933 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:45:42,940 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 13:45:42,971 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 13:45:42,971 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:45:42,975 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:45:42,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:45:42,982 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:42,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:42,991 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 13:45:42,996 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:42,997 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:42,997 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:45:42,997 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:45:43,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:43,013 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,015 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:45:43,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:43,027 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,028 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,036 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,036 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:45, output treesize:35 [2018-11-18 13:45:43,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:45:43,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:45:43,090 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:45:43,092 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,097 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,102 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,128 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2018-11-18 13:45:43,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:45:43,132 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:45:43,134 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,140 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,146 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,158 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:90, output treesize:55 [2018-11-18 13:45:43,202 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,203 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,204 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,204 INFO L477 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 26 treesize of output 46 [2018-11-18 13:45:43,205 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,223 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,224 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:75 [2018-11-18 13:45:43,277 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,278 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,279 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,280 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 71 [2018-11-18 13:45:43,281 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 47 [2018-11-18 13:45:43,321 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:43,321 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,328 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 71 [2018-11-18 13:45:43,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:43,362 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,375 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,399 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,400 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:111, output treesize:113 [2018-11-18 13:45:43,579 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 101 [2018-11-18 13:45:43,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-18 13:45:43,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-18 13:45:43,588 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,593 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,608 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,639 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,640 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,649 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 81 [2018-11-18 13:45:43,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:43,654 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:43,654 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,659 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,671 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,697 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:139, output treesize:177 [2018-11-18 13:45:43,772 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,773 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,774 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,775 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,777 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,778 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,779 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 160 [2018-11-18 13:45:43,780 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,821 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:191, output treesize:217 [2018-11-18 13:45:43,915 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,916 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,918 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,919 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,920 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,922 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,923 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,924 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 141 [2018-11-18 13:45:43,926 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:43,994 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:43,995 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 164 [2018-11-18 13:45:44,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:44,016 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,036 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,082 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,083 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,085 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 197 [2018-11-18 13:45:44,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:44,100 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,127 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,168 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:247, output treesize:229 [2018-11-18 13:45:44,268 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,269 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 210 [2018-11-18 13:45:44,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:44,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:44,298 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,303 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,332 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,381 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,382 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,387 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,388 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,401 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:44,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 239 [2018-11-18 13:45:44,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2018-11-18 13:45:44,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-11-18 13:45:44,409 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,415 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,450 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,492 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:44,492 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:251, output treesize:341 [2018-11-18 13:45:45,835 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:45,836 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,838 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,839 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,840 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,840 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:45,841 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,842 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,843 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,851 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,852 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,853 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,854 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,855 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:45,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 539 treesize of output 458 [2018-11-18 13:45:45,871 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 15 [2018-11-18 13:45:45,872 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:45,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:45:45,954 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:46,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 225 treesize of output 187 [2018-11-18 13:45:46,011 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:46,061 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:46,062 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:46,064 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 126 [2018-11-18 13:45:46,065 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:46,114 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:46,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 100 [2018-11-18 13:45:46,116 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:46,160 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:46,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 35 [2018-11-18 13:45:46,161 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:46,204 INFO L267 ElimStorePlain]: Start of recursive call 2: 6 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:46,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 129 [2018-11-18 13:45:46,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-11-18 13:45:46,274 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:46,302 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:46,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 17 [2018-11-18 13:45:46,303 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:46,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-18 13:45:46,312 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:46,318 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-11-18 13:45:46,318 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:46,321 INFO L267 ElimStorePlain]: Start of recursive call 9: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:46,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:46,341 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:553, output treesize:7 [2018-11-18 13:45:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 20 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:45:46,460 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:45:46,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 22] total 42 [2018-11-18 13:45:46,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-11-18 13:45:46,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-11-18 13:45:46,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1549, Unknown=0, NotChecked=0, Total=1722 [2018-11-18 13:45:46,461 INFO L87 Difference]: Start difference. First operand 352 states and 407 transitions. Second operand 42 states. [2018-11-18 13:45:46,793 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2018-11-18 13:45:47,199 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 92 [2018-11-18 13:45:47,561 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2018-11-18 13:45:48,019 WARN L180 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 120 [2018-11-18 13:45:48,286 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2018-11-18 13:45:48,659 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2018-11-18 13:45:49,130 WARN L180 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 141 [2018-11-18 13:45:49,671 WARN L180 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 144 [2018-11-18 13:45:50,049 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2018-11-18 13:45:50,490 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 146 [2018-11-18 13:45:50,977 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 143 [2018-11-18 13:45:53,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:45:53,140 INFO L93 Difference]: Finished difference Result 377 states and 436 transitions. [2018-11-18 13:45:53,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-18 13:45:53,141 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 81 [2018-11-18 13:45:53,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:45:53,142 INFO L225 Difference]: With dead ends: 377 [2018-11-18 13:45:53,143 INFO L226 Difference]: Without dead ends: 374 [2018-11-18 13:45:53,144 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 63 SyntacticMatches, 12 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=424, Invalid=3236, Unknown=0, NotChecked=0, Total=3660 [2018-11-18 13:45:53,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2018-11-18 13:45:53,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 333. [2018-11-18 13:45:53,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2018-11-18 13:45:53,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 387 transitions. [2018-11-18 13:45:53,170 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 387 transitions. Word has length 81 [2018-11-18 13:45:53,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:45:53,170 INFO L480 AbstractCegarLoop]: Abstraction has 333 states and 387 transitions. [2018-11-18 13:45:53,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-11-18 13:45:53,170 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 387 transitions. [2018-11-18 13:45:53,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-18 13:45:53,171 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:45:53,171 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:45:53,171 INFO L423 AbstractCegarLoop]: === Iteration 32 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:45:53,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:45:53,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1005345480, now seen corresponding path program 2 times [2018-11-18 13:45:53,172 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:45:53,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:45:53,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:53,173 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:45:53,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:45:53,764 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2018-11-18 13:45:53,945 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 54 [2018-11-18 13:45:54,537 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 52 [2018-11-18 13:45:54,756 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 62 [2018-11-18 13:45:54,910 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 51 [2018-11-18 13:45:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 24 proven. 68 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:45:55,851 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:45:55,851 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:45:55,858 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 13:45:55,908 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 13:45:55,908 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:45:55,915 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:45:55,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:45:55,922 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:55,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:55,927 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 13:45:55,938 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:55,939 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:55,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:45:55,941 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:55,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:45:55,960 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:55,960 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:55,964 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:55,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:45:55,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:55,993 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:55,999 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,019 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:45, output treesize:35 [2018-11-18 13:45:56,078 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:45:56,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:45:56,083 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:45:56,085 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,089 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,095 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:45:56,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:45:56,118 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:45:56,119 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,124 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,129 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,142 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,142 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:90, output treesize:55 [2018-11-18 13:45:56,190 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,191 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,192 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,193 INFO L477 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 26 treesize of output 46 [2018-11-18 13:45:56,193 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,206 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,206 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:66, output treesize:72 [2018-11-18 13:45:56,262 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,263 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,264 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,265 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 67 [2018-11-18 13:45:56,266 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 71 [2018-11-18 13:45:56,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:56,306 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,316 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 47 [2018-11-18 13:45:56,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:56,350 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,357 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,379 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,379 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:108, output treesize:110 [2018-11-18 13:45:56,457 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,464 INFO L477 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 101 [2018-11-18 13:45:56,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-18 13:45:56,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-18 13:45:56,470 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,475 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,492 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,524 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 81 [2018-11-18 13:45:56,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:56,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:56,540 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,544 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,556 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,583 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,583 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:135, output treesize:182 [2018-11-18 13:45:56,660 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,661 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,662 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,663 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,664 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,665 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 160 [2018-11-18 13:45:56,666 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,703 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,703 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:196, output treesize:222 [2018-11-18 13:45:56,801 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,802 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,803 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,804 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,805 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,807 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,808 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,809 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 141 [2018-11-18 13:45:56,810 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,864 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,865 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 205 [2018-11-18 13:45:56,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:56,884 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,914 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,958 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:56,971 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 176 [2018-11-18 13:45:56,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:45:56,974 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:56,993 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:57,032 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:57,032 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:252, output treesize:234 [2018-11-18 13:45:57,138 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:57,143 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:57,146 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:57,163 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:57,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 247 [2018-11-18 13:45:57,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2018-11-18 13:45:57,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-11-18 13:45:57,172 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:57,179 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:57,220 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:57,268 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:57,269 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:57,270 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:57,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 238 [2018-11-18 13:45:57,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:45:57,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:45:57,297 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:57,301 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:57,329 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:57,368 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:57,368 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:256, output treesize:354 [2018-11-18 13:45:58,311 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:58,312 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,313 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,314 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,315 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,316 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,317 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,318 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,319 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:58,320 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,322 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,323 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,324 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,327 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 515 treesize of output 502 [2018-11-18 13:45:58,346 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 15 [2018-11-18 13:45:58,346 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:58,418 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:58,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 158 [2018-11-18 13:45:58,420 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:58,470 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:58,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 39 [2018-11-18 13:45:58,471 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:58,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 1 [2018-11-18 13:45:58,510 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:58,545 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:45:58,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 74 [2018-11-18 13:45:58,546 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:58,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 123 [2018-11-18 13:45:58,582 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:58,613 INFO L267 ElimStorePlain]: Start of recursive call 2: 6 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:58,658 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 132 [2018-11-18 13:45:58,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-18 13:45:58,661 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:58,685 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:45:58,687 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 29 [2018-11-18 13:45:58,687 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:45:58,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-11-18 13:45:58,697 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:58,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-11-18 13:45:58,704 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:58,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:45:58,711 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 13:45:58,717 INFO L267 ElimStorePlain]: Start of recursive call 9: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:58,735 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:45:58,736 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 3 variables, input treesize:529, output treesize:7 [2018-11-18 13:45:58,842 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 32 proven. 60 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:45:58,859 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:45:58,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 18] total 41 [2018-11-18 13:45:58,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-11-18 13:45:58,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-11-18 13:45:58,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1499, Unknown=0, NotChecked=0, Total=1640 [2018-11-18 13:45:58,860 INFO L87 Difference]: Start difference. First operand 333 states and 387 transitions. Second operand 41 states. [2018-11-18 13:45:59,293 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 87 [2018-11-18 13:46:00,066 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 102 [2018-11-18 13:46:00,340 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 86 [2018-11-18 13:46:00,838 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 120 [2018-11-18 13:46:01,452 WARN L180 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 151 [2018-11-18 13:46:01,833 WARN L180 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 121 [2018-11-18 13:46:02,544 WARN L180 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 152 [2018-11-18 13:46:03,184 WARN L180 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 154 [2018-11-18 13:46:03,743 WARN L180 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 156 [2018-11-18 13:46:04,071 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 151 [2018-11-18 13:46:04,724 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 155 [2018-11-18 13:46:05,053 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 154 [2018-11-18 13:46:06,113 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 162 [2018-11-18 13:46:06,379 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 158 [2018-11-18 13:46:06,648 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 162 [2018-11-18 13:46:06,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:46:06,933 INFO L93 Difference]: Finished difference Result 376 states and 433 transitions. [2018-11-18 13:46:06,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-18 13:46:06,934 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 88 [2018-11-18 13:46:06,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:46:06,936 INFO L225 Difference]: With dead ends: 376 [2018-11-18 13:46:06,936 INFO L226 Difference]: Without dead ends: 373 [2018-11-18 13:46:06,937 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 76 SyntacticMatches, 9 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=395, Invalid=3027, Unknown=0, NotChecked=0, Total=3422 [2018-11-18 13:46:06,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2018-11-18 13:46:06,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 336. [2018-11-18 13:46:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2018-11-18 13:46:06,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 390 transitions. [2018-11-18 13:46:06,968 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 390 transitions. Word has length 88 [2018-11-18 13:46:06,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:46:06,968 INFO L480 AbstractCegarLoop]: Abstraction has 336 states and 390 transitions. [2018-11-18 13:46:06,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-11-18 13:46:06,969 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 390 transitions. [2018-11-18 13:46:06,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-18 13:46:06,970 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:46:06,970 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:46:06,970 INFO L423 AbstractCegarLoop]: === Iteration 33 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:46:06,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:46:06,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1605987334, now seen corresponding path program 1 times [2018-11-18 13:46:06,970 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:46:06,970 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:46:06,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:46:06,971 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:46:06,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:46:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:46:07,349 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 13:46:07,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:46:07,349 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:46:07,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:46:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:46:07,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:46:07,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:46:07,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:46:07,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:46:07,478 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:07,484 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:07,487 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:07,492 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:07,492 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:22, output treesize:12 [2018-11-18 13:46:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 13:46:11,628 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:46:11,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12] total 26 [2018-11-18 13:46:11,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-18 13:46:11,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-18 13:46:11,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=588, Unknown=2, NotChecked=0, Total=650 [2018-11-18 13:46:11,629 INFO L87 Difference]: Start difference. First operand 336 states and 390 transitions. Second operand 26 states. [2018-11-18 13:46:22,256 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 32 [2018-11-18 13:46:24,325 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 43 [2018-11-18 13:46:57,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:46:57,089 INFO L93 Difference]: Finished difference Result 491 states and 606 transitions. [2018-11-18 13:46:57,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-18 13:46:57,089 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 111 [2018-11-18 13:46:57,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:46:57,090 INFO L225 Difference]: With dead ends: 491 [2018-11-18 13:46:57,090 INFO L226 Difference]: Without dead ends: 364 [2018-11-18 13:46:57,091 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 111 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=239, Invalid=2304, Unknown=7, NotChecked=0, Total=2550 [2018-11-18 13:46:57,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-11-18 13:46:57,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 335. [2018-11-18 13:46:57,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2018-11-18 13:46:57,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 383 transitions. [2018-11-18 13:46:57,130 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 383 transitions. Word has length 111 [2018-11-18 13:46:57,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:46:57,130 INFO L480 AbstractCegarLoop]: Abstraction has 335 states and 383 transitions. [2018-11-18 13:46:57,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-18 13:46:57,130 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 383 transitions. [2018-11-18 13:46:57,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-18 13:46:57,131 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:46:57,131 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:46:57,131 INFO L423 AbstractCegarLoop]: === Iteration 34 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:46:57,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:46:57,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1935068221, now seen corresponding path program 4 times [2018-11-18 13:46:57,131 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:46:57,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:46:57,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:46:57,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:46:57,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:46:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:46:57,966 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 45 [2018-11-18 13:46:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:46:59,411 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:46:59,411 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:46:59,418 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 13:46:59,473 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-18 13:46:59,473 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:46:59,477 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:46:59,543 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:46:59,543 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,547 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 13:46:59,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:46:59,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:46:59,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:46:59,587 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,591 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,595 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,601 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:27, output treesize:17 [2018-11-18 13:46:59,607 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,607 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:46:59,608 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,615 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:26 [2018-11-18 13:46:59,652 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,653 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,654 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,654 INFO L477 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 22 treesize of output 34 [2018-11-18 13:46:59,654 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 13:46:59,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:46:59,674 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,678 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,689 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:51, output treesize:49 [2018-11-18 13:46:59,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:46:59,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:46:59,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:46:59,741 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,745 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,748 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,767 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2018-11-18 13:46:59,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:46:59,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:46:59,770 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,773 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,780 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,793 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,793 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:74, output treesize:89 [2018-11-18 13:46:59,838 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,838 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,839 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,840 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 83 [2018-11-18 13:46:59,841 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,857 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,857 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:100, output treesize:114 [2018-11-18 13:46:59,911 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,912 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,913 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:46:59,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 112 [2018-11-18 13:46:59,915 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,957 INFO L477 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 34 treesize of output 35 [2018-11-18 13:46:59,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:46:59,959 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:46:59,964 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 124 [2018-11-18 13:47:00,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:47:00,007 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,021 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,049 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,050 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:154, output treesize:164 [2018-11-18 13:47:00,135 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 53 [2018-11-18 13:47:00,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:47:00,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:47:00,140 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,144 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,153 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,200 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 154 [2018-11-18 13:47:00,206 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-18 13:47:00,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-18 13:47:00,208 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,212 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,231 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,266 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,266 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:189, output treesize:272 [2018-11-18 13:47:00,345 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,346 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,347 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,348 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,349 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,350 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,351 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 249 [2018-11-18 13:47:00,352 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,402 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,402 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:286, output treesize:324 [2018-11-18 13:47:00,501 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,502 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,503 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,504 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,504 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,505 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,506 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,507 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 23 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 229 [2018-11-18 13:47:00,508 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,571 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 128 [2018-11-18 13:47:00,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:47:00,583 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,598 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,653 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,655 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,662 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 24 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 300 treesize of output 286 [2018-11-18 13:47:00,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-11-18 13:47:00,674 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,711 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,757 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,757 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:354, output treesize:323 [2018-11-18 13:47:00,870 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 162 [2018-11-18 13:47:00,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:47:00,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:47:00,890 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,894 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,915 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:00,973 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,974 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,982 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,982 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:00,996 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:01,003 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:01,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 26 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 298 treesize of output 327 [2018-11-18 13:47:01,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2018-11-18 13:47:01,008 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-11-18 13:47:01,008 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:01,014 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:01,058 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:01,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:01,107 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:345, output treesize:487 [2018-11-18 13:47:02,585 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,586 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,587 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,588 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,589 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,590 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,590 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,591 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:02,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 594 treesize of output 675 [2018-11-18 13:47:02,604 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:02,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 80 [2018-11-18 13:47:02,606 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:02,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2018-11-18 13:47:02,672 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:02,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:47:02,713 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:02,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 32 [2018-11-18 13:47:02,752 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:02,785 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:02,882 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,883 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,884 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:02,885 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,886 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,887 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,889 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 578 treesize of output 545 [2018-11-18 13:47:02,899 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:02,903 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 55 [2018-11-18 13:47:02,904 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 13:47:02,965 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 47 [2018-11-18 13:47:02,965 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:03,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:47:03,013 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:03,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 27 [2018-11-18 13:47:03,055 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:03,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:47:03,095 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:03,131 INFO L267 ElimStorePlain]: Start of recursive call 7: 5 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:03,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-11-18 13:47:03,208 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 4 variables, input treesize:1189, output treesize:821 [2018-11-18 13:47:03,769 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,786 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,787 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,788 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,789 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,800 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,802 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,804 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,804 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,810 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,810 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:03,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 428 treesize of output 254 [2018-11-18 13:47:03,847 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 103 treesize of output 155 [2018-11-18 13:47:03,847 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-11-18 13:47:04,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:04,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:47:04,105 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:04,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:47:04,132 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:04,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 41 [2018-11-18 13:47:04,158 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:04,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 13:47:04,169 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:04,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-11-18 13:47:04,178 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:04,184 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:47:04,184 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:04,187 INFO L267 ElimStorePlain]: Start of recursive call 2: 7 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:04,201 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:04,201 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:861, output treesize:4 [2018-11-18 13:47:04,392 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 13 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:47:04,407 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:47:04,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25] total 48 [2018-11-18 13:47:04,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-11-18 13:47:04,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-11-18 13:47:04,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=2109, Unknown=0, NotChecked=0, Total=2256 [2018-11-18 13:47:04,408 INFO L87 Difference]: Start difference. First operand 335 states and 383 transitions. Second operand 48 states. [2018-11-18 13:47:04,891 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 81 [2018-11-18 13:47:05,065 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 83 [2018-11-18 13:47:05,560 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 101 [2018-11-18 13:47:05,818 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 105 [2018-11-18 13:47:06,151 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 120 [2018-11-18 13:47:06,516 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 129 [2018-11-18 13:47:06,896 WARN L180 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 135 [2018-11-18 13:47:07,200 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2018-11-18 13:47:07,729 WARN L180 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 172 [2018-11-18 13:47:08,489 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 174 [2018-11-18 13:47:09,559 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 177 [2018-11-18 13:47:09,989 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2018-11-18 13:47:10,315 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2018-11-18 13:47:10,629 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2018-11-18 13:47:10,955 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2018-11-18 13:47:11,459 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2018-11-18 13:47:11,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:47:11,819 INFO L93 Difference]: Finished difference Result 399 states and 455 transitions. [2018-11-18 13:47:11,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-18 13:47:11,819 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 100 [2018-11-18 13:47:11,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:47:11,821 INFO L225 Difference]: With dead ends: 399 [2018-11-18 13:47:11,821 INFO L226 Difference]: Without dead ends: 396 [2018-11-18 13:47:11,822 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 80 SyntacticMatches, 15 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1180 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=476, Invalid=4494, Unknown=0, NotChecked=0, Total=4970 [2018-11-18 13:47:11,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2018-11-18 13:47:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 347. [2018-11-18 13:47:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2018-11-18 13:47:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 396 transitions. [2018-11-18 13:47:11,847 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 396 transitions. Word has length 100 [2018-11-18 13:47:11,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:47:11,847 INFO L480 AbstractCegarLoop]: Abstraction has 347 states and 396 transitions. [2018-11-18 13:47:11,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-11-18 13:47:11,847 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 396 transitions. [2018-11-18 13:47:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-18 13:47:11,848 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:47:11,848 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:47:11,849 INFO L423 AbstractCegarLoop]: === Iteration 35 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:47:11,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:47:11,849 INFO L82 PathProgramCache]: Analyzing trace with hash 454963789, now seen corresponding path program 3 times [2018-11-18 13:47:11,849 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:47:11,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:47:11,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:47:11,850 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:47:11,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:47:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:47:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 22 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:47:13,788 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:47:13,788 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:47:13,796 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 13:47:13,898 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-18 13:47:13,898 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:47:13,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:47:13,934 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:47:13,934 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:13,938 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:13,938 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 13:47:13,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:47:13,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:47:13,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:47:13,973 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:13,975 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:13,978 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:13,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 13:47:13,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 13:47:13,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:47:13,988 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:13,991 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:13,993 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:13,999 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:13,999 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2018-11-18 13:47:14,031 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:14,032 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:14,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-18 13:47:14,033 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,039 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:29 [2018-11-18 13:47:14,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:47:14,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,090 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 13:47:14,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:47:14,092 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,096 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 13:47:14,111 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:47:14,111 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,115 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,124 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:60, output treesize:51 [2018-11-18 13:47:14,185 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:14,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 70 [2018-11-18 13:47:14,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-11-18 13:47:14,204 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:14,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2018-11-18 13:47:14,206 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,214 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2018-11-18 13:47:14,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:47:14,280 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,285 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2018-11-18 13:47:14,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:47:14,348 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,353 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,375 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:47:14,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 60 [2018-11-18 13:47:14,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2018-11-18 13:47:14,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 13:47:14,424 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,430 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2018-11-18 13:47:14,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 13:47:14,468 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,472 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,490 INFO L267 ElimStorePlain]: Start of recursive call 9: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,516 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:47:14,516 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 4 variables, input treesize:73, output treesize:220 [2018-11-18 13:47:14,632 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:14,633 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:14,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 78 [2018-11-18 13:47:14,633 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,683 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:14,684 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:14,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 105 [2018-11-18 13:47:14,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,734 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:14,734 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:14,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 74 [2018-11-18 13:47:14,735 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:14,780 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:47:14,780 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:246, output treesize:240 [2018-11-18 13:47:15,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 133 [2018-11-18 13:47:15,027 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:15,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2018-11-18 13:47:15,249 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:15,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 102 [2018-11-18 13:47:15,473 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:15,690 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:15,694 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:15,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 134 [2018-11-18 13:47:15,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 122 [2018-11-18 13:47:15,707 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:15,804 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:15,964 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:15,967 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:15,970 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:15,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 140 [2018-11-18 13:47:15,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 138 [2018-11-18 13:47:15,982 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:16,025 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:16,145 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:16,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 133 treesize of output 176 [2018-11-18 13:47:16,174 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:16,175 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 152 [2018-11-18 13:47:16,175 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:16,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 129 [2018-11-18 13:47:16,305 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:16,351 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:16,448 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:16,454 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:16,455 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:16,472 INFO L477 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 5 new quantified variables, introduced 7 case distinctions, treesize of input 129 treesize of output 181 [2018-11-18 13:47:16,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 169 [2018-11-18 13:47:16,476 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:16,630 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:16,708 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:16,709 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:16,722 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 126 [2018-11-18 13:47:16,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 110 [2018-11-18 13:47:16,724 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:16,816 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:16,890 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:16,891 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:16,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 122 [2018-11-18 13:47:16,905 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 114 [2018-11-18 13:47:16,905 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:16,959 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:47:17,041 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, 6 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:47:17,041 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 9 variables, input treesize:345, output treesize:306 [2018-11-18 13:47:17,180 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,183 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,189 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,190 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,192 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,194 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 120 treesize of output 201 [2018-11-18 13:47:17,219 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-18 13:47:17,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 193 [2018-11-18 13:47:17,234 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,234 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2018-11-18 13:47:17,234 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:17,269 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:17,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 91 [2018-11-18 13:47:17,582 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,583 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-11-18 13:47:17,584 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:17,603 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:17,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 115 [2018-11-18 13:47:17,783 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,784 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-11-18 13:47:17,785 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:17,810 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:17,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 110 [2018-11-18 13:47:17,959 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,960 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:17,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-11-18 13:47:17,962 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:17,983 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:18,201 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 13:47:18,649 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:18,657 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:18,661 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:18,663 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:18,670 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:18,672 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:18,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 147 treesize of output 240 [2018-11-18 13:47:18,711 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-18 13:47:18,762 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:18,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 225 treesize of output 225 [2018-11-18 13:47:18,767 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:18,767 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:18,769 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:18,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 59 [2018-11-18 13:47:18,779 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:18,833 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:20,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 126 [2018-11-18 13:47:20,514 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:20,515 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:20,516 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:20,518 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 54 [2018-11-18 13:47:20,518 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:20,547 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:22,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 110 [2018-11-18 13:47:22,467 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:22,468 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:22,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-11-18 13:47:22,469 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:22,490 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:23,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 138 [2018-11-18 13:47:23,351 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:23,352 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:23,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-11-18 13:47:23,353 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:23,379 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:24,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 145 [2018-11-18 13:47:24,175 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:24,176 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:24,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-11-18 13:47:24,177 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:24,206 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:24,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 146 [2018-11-18 13:47:24,865 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:24,866 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:24,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-11-18 13:47:24,867 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:24,895 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:26,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 130 [2018-11-18 13:47:26,152 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:26,153 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:26,153 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:26,156 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:26,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 47 [2018-11-18 13:47:26,157 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:26,185 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:26,526 INFO L267 ElimStorePlain]: Start of recursive call 26: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:26,864 INFO L267 ElimStorePlain]: Start of recursive call 11: 11 dim-1 vars, End of recursive call: 4 dim-0 vars, and 8 xjuncts. [2018-11-18 13:47:27,932 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:27,936 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:27,942 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:27,944 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:27,944 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:27,947 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:27,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 207 [2018-11-18 13:47:27,977 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-18 13:47:28,026 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 178 treesize of output 208 [2018-11-18 13:47:28,905 WARN L180 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 150 [2018-11-18 13:47:28,909 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:28,910 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:28,911 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:28,911 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:28,912 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:28,913 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:28,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:28,916 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:28,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 172 [2018-11-18 13:47:28,917 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:29,330 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:29,331 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:29,332 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:29,333 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:29,333 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:29,335 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:29,335 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:29,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 167 [2018-11-18 13:47:29,337 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:29,711 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:29,711 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:29,713 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:29,716 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:29,718 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:29,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 121 treesize of output 166 [2018-11-18 13:47:29,730 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 13:47:30,341 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:30,342 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:30,342 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:30,344 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:30,345 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:30,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 126 [2018-11-18 13:47:30,346 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:30,921 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:30,922 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:30,922 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:30,924 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:30,925 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:30,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 131 [2018-11-18 13:47:30,926 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:31,503 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:31,504 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:31,506 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:31,509 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:31,511 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:31,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 161 [2018-11-18 13:47:31,521 INFO L267 ElimStorePlain]: Start of recursive call 34: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 13:47:32,371 INFO L267 ElimStorePlain]: Start of recursive call 28: 7 dim-0 vars, 6 dim-1 vars, End of recursive call: 14 dim-0 vars, and 10 xjuncts. [2018-11-18 13:47:35,615 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 115 [2018-11-18 13:47:35,617 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:35,618 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:35,619 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:35,619 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 39 [2018-11-18 13:47:35,620 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:35,644 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:38,297 INFO L267 ElimStorePlain]: Start of recursive call 37: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:47:40,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 106 [2018-11-18 13:47:40,974 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:40,975 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:40,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-11-18 13:47:40,975 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:40,996 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:43,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 115 [2018-11-18 13:47:43,423 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:43,424 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:43,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-11-18 13:47:43,425 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:43,454 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:47,139 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:47,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 120 [2018-11-18 13:47:47,142 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:47,142 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:47,143 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:47,144 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:47,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 47 [2018-11-18 13:47:47,144 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:47,170 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:48,405 INFO L267 ElimStorePlain]: Start of recursive call 27: 7 dim-1 vars, End of recursive call: 16 dim-0 vars, and 15 xjuncts. [2018-11-18 13:47:51,714 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,715 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,716 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,717 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 170 [2018-11-18 13:47:51,731 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 29 [2018-11-18 13:47:51,734 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,735 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:51,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 39 [2018-11-18 13:47:51,735 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:51,741 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:51,767 INFO L267 ElimStorePlain]: Start of recursive call 44: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:51,769 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,770 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,772 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 138 treesize of output 188 [2018-11-18 13:47:51,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 178 [2018-11-18 13:47:51,798 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,798 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 31 [2018-11-18 13:47:51,799 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:51,825 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:51,887 INFO L267 ElimStorePlain]: Start of recursive call 47: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:47:51,889 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,890 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,891 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:51,893 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:47:51,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 165 [2018-11-18 13:47:52,101 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:47:52,102 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_282 term size 23 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.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:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 13:47:52,104 INFO L168 Benchmark]: Toolchain (without parser) took 231245.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 956.6 MB in the beginning and 851.8 MB in the end (delta: 104.7 MB). Peak memory consumption was 435.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:47:52,105 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:47:52,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:47:52,105 INFO L168 Benchmark]: Boogie Preprocessor took 42.46 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:47:52,105 INFO L168 Benchmark]: RCFGBuilder took 527.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:47:52,105 INFO L168 Benchmark]: TraceAbstraction took 230292.67 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 92.3 MB). Free memory was 1.0 GB in the beginning and 851.8 MB in the end (delta: 169.7 MB). Peak memory consumption was 393.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:47:52,107 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 380.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.46 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 527.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 230292.67 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 92.3 MB). Free memory was 1.0 GB in the beginning and 851.8 MB in the end (delta: 169.7 MB). Peak memory consumption was 393.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_282 term size 23 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_282 term size 23: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 13:47:53,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:47:53,516 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:47:53,524 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:47:53,525 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:47:53,525 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:47:53,526 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:47:53,527 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:47:53,528 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:47:53,529 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:47:53,530 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:47:53,530 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:47:53,531 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:47:53,531 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:47:53,532 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:47:53,532 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:47:53,533 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:47:53,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:47:53,536 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:47:53,537 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:47:53,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:47:53,539 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:47:53,541 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:47:53,541 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:47:53,541 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:47:53,542 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:47:53,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:47:53,543 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:47:53,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:47:53,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:47:53,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:47:53,546 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:47:53,546 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:47:53,546 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:47:53,547 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:47:53,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:47:53,547 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 13:47:53,558 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:47:53,558 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:47:53,558 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:47:53,559 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:47:53,559 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:47:53,559 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:47:53,559 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:47:53,559 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:47:53,560 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:47:53,560 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:47:53,560 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:47:53,560 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:47:53,560 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:47:53,560 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:47:53,560 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 13:47:53,560 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 13:47:53,561 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:47:53,561 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:47:53,561 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:47:53,561 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:47:53,561 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:47:53,561 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:47:53,561 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:47:53,562 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:47:53,562 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:47:53,562 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:47:53,562 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:47:53,562 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:47:53,562 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 13:47:53,562 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:47:53,562 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 13:47:53,563 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 13:47:53,563 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_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6399ca05df7547b7620299987a8a06e9e2c006b [2018-11-18 13:47:53,592 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:47:53,602 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:47:53,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:47:53,606 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:47:53,606 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:47:53,607 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 13:47:53,644 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/data/28779cef8/0d663e960f0841529dfbdc672fbc92fb/FLAGa2ab6b0ca [2018-11-18 13:47:54,074 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:47:54,074 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 13:47:54,081 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/data/28779cef8/0d663e960f0841529dfbdc672fbc92fb/FLAGa2ab6b0ca [2018-11-18 13:47:54,090 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/data/28779cef8/0d663e960f0841529dfbdc672fbc92fb [2018-11-18 13:47:54,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:47:54,094 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 13:47:54,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:47:54,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:47:54,098 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:47:54,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:47:54" (1/1) ... [2018-11-18 13:47:54,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc2ba1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54, skipping insertion in model container [2018-11-18 13:47:54,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:47:54" (1/1) ... [2018-11-18 13:47:54,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:47:54,141 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:47:54,392 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:47:54,402 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:47:54,443 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:47:54,516 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:47:54,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54 WrapperNode [2018-11-18 13:47:54,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:47:54,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:47:54,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:47:54,517 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:47:54,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54" (1/1) ... [2018-11-18 13:47:54,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54" (1/1) ... [2018-11-18 13:47:54,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54" (1/1) ... [2018-11-18 13:47:54,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54" (1/1) ... [2018-11-18 13:47:54,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54" (1/1) ... [2018-11-18 13:47:54,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54" (1/1) ... [2018-11-18 13:47:54,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54" (1/1) ... [2018-11-18 13:47:54,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:47:54,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:47:54,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:47:54,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:47:54,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:47:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:47:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:47:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-18 13:47:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-18 13:47:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 13:47:54,616 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-11-18 13:47:54,617 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_pair [2018-11-18 13:47:54,617 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2018-11-18 13:47:54,617 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_before [2018-11-18 13:47:54,617 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_after [2018-11-18 13:47:54,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:47:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 13:47:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-18 13:47:54,617 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-18 13:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-18 13:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-18 13:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-18 13:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-18 13:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-18 13:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-18 13:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-18 13:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-18 13:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-18 13:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-18 13:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-18 13:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 13:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-18 13:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-18 13:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-18 13:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-18 13:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-18 13:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-18 13:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-18 13:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-18 13:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-18 13:47:54,621 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-18 13:47:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-18 13:47:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-18 13:47:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-18 13:47:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-18 13:47:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-18 13:47:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-18 13:47:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-18 13:47:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-18 13:47:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-18 13:47:54,622 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-18 13:47:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 13:47:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-18 13:47:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-18 13:47:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-18 13:47:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-18 13:47:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-18 13:47:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-18 13:47:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-18 13:47:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-18 13:47:54,623 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-18 13:47:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-18 13:47:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-18 13:47:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-18 13:47:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-18 13:47:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-18 13:47:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-18 13:47:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-18 13:47:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-18 13:47:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-18 13:47:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-18 13:47:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-11-18 13:47:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure merge_pair [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sort_core [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_before [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_after [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 13:47:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:47:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:47:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 13:47:55,187 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:47:55,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:47:55 BoogieIcfgContainer [2018-11-18 13:47:55,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:47:55,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:47:55,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:47:55,192 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:47:55,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:47:54" (1/3) ... [2018-11-18 13:47:55,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670f31cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:47:55, skipping insertion in model container [2018-11-18 13:47:55,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:47:54" (2/3) ... [2018-11-18 13:47:55,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670f31cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:47:55, skipping insertion in model container [2018-11-18 13:47:55,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:47:55" (3/3) ... [2018-11-18 13:47:55,194 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 13:47:55,200 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:47:55,207 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:47:55,219 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:47:55,240 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:47:55,241 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:47:55,241 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:47:55,241 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:47:55,241 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:47:55,241 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:47:55,241 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:47:55,242 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:47:55,242 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:47:55,254 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2018-11-18 13:47:55,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:47:55,258 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:47:55,259 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:47:55,260 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:47:55,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:47:55,264 INFO L82 PathProgramCache]: Analyzing trace with hash 833335127, now seen corresponding path program 1 times [2018-11-18 13:47:55,266 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:47:55,267 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:47:55,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:47:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:47:55,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:47:55,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:47:55,372 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:47:55,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:47:55,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:47:55,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:47:55,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:47:55,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:47:55,391 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 2 states. [2018-11-18 13:47:55,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:47:55,423 INFO L93 Difference]: Finished difference Result 238 states and 389 transitions. [2018-11-18 13:47:55,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:47:55,424 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-18 13:47:55,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:47:55,434 INFO L225 Difference]: With dead ends: 238 [2018-11-18 13:47:55,434 INFO L226 Difference]: Without dead ends: 110 [2018-11-18 13:47:55,438 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:47:55,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-11-18 13:47:55,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-11-18 13:47:55,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-11-18 13:47:55,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2018-11-18 13:47:55,477 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 14 [2018-11-18 13:47:55,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:47:55,477 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2018-11-18 13:47:55,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:47:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2018-11-18 13:47:55,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:47:55,478 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:47:55,478 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:47:55,479 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:47:55,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:47:55,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1339618600, now seen corresponding path program 1 times [2018-11-18 13:47:55,479 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:47:55,479 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:47:55,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:47:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:47:55,511 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:47:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:47:55,532 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:47:55,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:47:55,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:47:55,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:47:55,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:47:55,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:47:55,535 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand 3 states. [2018-11-18 13:47:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:47:55,580 INFO L93 Difference]: Finished difference Result 214 states and 260 transitions. [2018-11-18 13:47:55,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:47:55,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 13:47:55,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:47:55,582 INFO L225 Difference]: With dead ends: 214 [2018-11-18 13:47:55,583 INFO L226 Difference]: Without dead ends: 116 [2018-11-18 13:47:55,584 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:47:55,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-11-18 13:47:55,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2018-11-18 13:47:55,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-11-18 13:47:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2018-11-18 13:47:55,595 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 15 [2018-11-18 13:47:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:47:55,595 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2018-11-18 13:47:55,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:47:55,595 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2018-11-18 13:47:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 13:47:55,596 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:47:55,596 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:47:55,596 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:47:55,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:47:55,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1498299314, now seen corresponding path program 1 times [2018-11-18 13:47:55,597 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:47:55,597 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:47:55,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:47:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:47:55,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:47:55,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:47:55,677 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:47:55,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:47:55,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:47:55,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:47:55,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:47:55,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:47:55,680 INFO L87 Difference]: Start difference. First operand 112 states and 135 transitions. Second operand 6 states. [2018-11-18 13:47:55,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:47:55,841 INFO L93 Difference]: Finished difference Result 161 states and 194 transitions. [2018-11-18 13:47:55,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:47:55,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-18 13:47:55,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:47:55,844 INFO L225 Difference]: With dead ends: 161 [2018-11-18 13:47:55,844 INFO L226 Difference]: Without dead ends: 156 [2018-11-18 13:47:55,844 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:47:55,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-11-18 13:47:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 117. [2018-11-18 13:47:55,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-11-18 13:47:55,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 140 transitions. [2018-11-18 13:47:55,862 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 140 transitions. Word has length 21 [2018-11-18 13:47:55,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:47:55,863 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 140 transitions. [2018-11-18 13:47:55,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:47:55,863 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 140 transitions. [2018-11-18 13:47:55,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 13:47:55,864 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:47:55,864 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:47:55,864 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:47:55,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:47:55,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1292795846, now seen corresponding path program 1 times [2018-11-18 13:47:55,865 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:47:55,866 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:47:55,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:47:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:47:55,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:47:55,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 13:47:55,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-18 13:47:55,970 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:55,974 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:55,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 13:47:55,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-18 13:47:55,989 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:55,991 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:55,996 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:55,996 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:37, output treesize:7 [2018-11-18 13:47:56,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:47:56,009 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:47:56,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:47:56,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:47:56,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:47:56,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:47:56,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:47:56,011 INFO L87 Difference]: Start difference. First operand 117 states and 140 transitions. Second operand 5 states. [2018-11-18 13:47:56,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:47:56,450 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2018-11-18 13:47:56,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:47:56,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-18 13:47:56,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:47:56,454 INFO L225 Difference]: With dead ends: 119 [2018-11-18 13:47:56,454 INFO L226 Difference]: Without dead ends: 116 [2018-11-18 13:47:56,454 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:47:56,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-11-18 13:47:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-11-18 13:47:56,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-11-18 13:47:56,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 138 transitions. [2018-11-18 13:47:56,462 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 138 transitions. Word has length 29 [2018-11-18 13:47:56,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:47:56,462 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 138 transitions. [2018-11-18 13:47:56,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:47:56,462 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 138 transitions. [2018-11-18 13:47:56,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 13:47:56,463 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:47:56,463 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:47:56,463 INFO L423 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:47:56,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:47:56,463 INFO L82 PathProgramCache]: Analyzing trace with hash -495694272, now seen corresponding path program 1 times [2018-11-18 13:47:56,464 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:47:56,464 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:47:56,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:47:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:47:56,505 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:47:56,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-18 13:47:56,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-18 13:47:56,539 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:56,550 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:56,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-11-18 13:47:56,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 13:47:56,596 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:56,599 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:56,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2018-11-18 13:47:56,629 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 13:47:56,629 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:56,637 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:56,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-18 13:47:56,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-18 13:47:56,659 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:56,660 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:56,663 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:47:56,664 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:59, output treesize:9 [2018-11-18 13:47:56,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:47:56,676 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:47:56,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:47:56,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:47:56,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:47:56,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:47:56,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:47:56,679 INFO L87 Difference]: Start difference. First operand 116 states and 138 transitions. Second operand 5 states. [2018-11-18 13:47:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:47:57,429 INFO L93 Difference]: Finished difference Result 118 states and 139 transitions. [2018-11-18 13:47:57,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:47:57,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-18 13:47:57,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:47:57,434 INFO L225 Difference]: With dead ends: 118 [2018-11-18 13:47:57,435 INFO L226 Difference]: Without dead ends: 115 [2018-11-18 13:47:57,435 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:47:57,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-11-18 13:47:57,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-11-18 13:47:57,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-18 13:47:57,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2018-11-18 13:47:57,442 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 29 [2018-11-18 13:47:57,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:47:57,442 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2018-11-18 13:47:57,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:47:57,443 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2018-11-18 13:47:57,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 13:47:57,443 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:47:57,443 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:47:57,444 INFO L423 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:47:57,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:47:57,444 INFO L82 PathProgramCache]: Analyzing trace with hash 521835113, now seen corresponding path program 1 times [2018-11-18 13:47:57,444 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:47:57,444 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:47:57,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:47:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:47:57,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:47:57,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:47:57,521 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:47:57,526 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:57,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:47:57,529 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:57,537 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:57,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:57,552 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:57,552 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:24, output treesize:12 [2018-11-18 13:47:57,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-18 13:47:57,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:47:57,600 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:57,601 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:57,602 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:57,603 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-18 13:47:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:47:57,617 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:47:57,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:47:57,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 13:47:57,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:47:57,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:47:57,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:47:57,619 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand 8 states. [2018-11-18 13:47:58,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:47:58,303 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2018-11-18 13:47:58,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 13:47:58,306 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-18 13:47:58,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:47:58,307 INFO L225 Difference]: With dead ends: 151 [2018-11-18 13:47:58,307 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 13:47:58,307 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:47:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 13:47:58,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2018-11-18 13:47:58,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-11-18 13:47:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2018-11-18 13:47:58,315 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 32 [2018-11-18 13:47:58,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:47:58,316 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2018-11-18 13:47:58,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:47:58,316 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2018-11-18 13:47:58,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 13:47:58,316 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:47:58,316 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:47:58,317 INFO L423 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:47:58,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:47:58,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1383100173, now seen corresponding path program 1 times [2018-11-18 13:47:58,317 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:47:58,317 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:47:58,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:47:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:47:58,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:47:58,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:47:58,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:47:58,410 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:58,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:47:58,415 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,432 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,447 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:47:58,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:47:58,482 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:47:58,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:47:58,487 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,498 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,510 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,525 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,525 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:36, output treesize:22 [2018-11-18 13:47:58,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:47:58,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:47:58,582 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,584 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:47:58,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:47:58,592 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,593 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:47:58,596 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 13:47:58,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:47:58,609 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:47:58,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:47:58,691 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:47:58,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2018-11-18 13:47:58,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 13:47:58,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 13:47:58,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:47:58,692 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 11 states. [2018-11-18 13:48:00,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:00,903 INFO L93 Difference]: Finished difference Result 253 states and 298 transitions. [2018-11-18 13:48:00,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 13:48:00,908 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2018-11-18 13:48:00,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:00,909 INFO L225 Difference]: With dead ends: 253 [2018-11-18 13:48:00,909 INFO L226 Difference]: Without dead ends: 159 [2018-11-18 13:48:00,910 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:48:00,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-11-18 13:48:00,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 149. [2018-11-18 13:48:00,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-18 13:48:00,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 172 transitions. [2018-11-18 13:48:00,918 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 172 transitions. Word has length 32 [2018-11-18 13:48:00,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:00,918 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 172 transitions. [2018-11-18 13:48:00,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 13:48:00,918 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 172 transitions. [2018-11-18 13:48:00,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 13:48:00,918 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:00,919 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:00,919 INFO L423 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:00,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:00,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1963900044, now seen corresponding path program 1 times [2018-11-18 13:48:00,919 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:00,919 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:00,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:00,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:00,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:48:00,985 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:00,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:00,991 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 13:48:01,003 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:01,005 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:01,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 13:48:01,006 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:48:01,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:48:01,038 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,041 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:48:01,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:48:01,060 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,063 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,072 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:41, output treesize:25 [2018-11-18 13:48:01,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:48:01,116 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:01,121 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:01,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:01,126 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,141 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,157 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:48:01,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:01,219 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:01,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:01,225 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,233 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,243 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,266 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,266 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:54, output treesize:41 [2018-11-18 13:48:01,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2018-11-18 13:48:01,335 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2018-11-18 13:48:01,335 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:48:01,346 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,351 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-18 13:48:01,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:48:01,369 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2018-11-18 13:48:01,378 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,380 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,386 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:01,386 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:68, output treesize:7 [2018-11-18 13:48:01,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:01,416 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:48:01,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:01,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 13:48:01,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:48:01,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:48:01,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:48:01,420 INFO L87 Difference]: Start difference. First operand 149 states and 172 transitions. Second operand 8 states. [2018-11-18 13:48:02,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:02,934 INFO L93 Difference]: Finished difference Result 176 states and 203 transitions. [2018-11-18 13:48:02,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 13:48:02,934 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-11-18 13:48:02,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:02,935 INFO L225 Difference]: With dead ends: 176 [2018-11-18 13:48:02,935 INFO L226 Difference]: Without dead ends: 173 [2018-11-18 13:48:02,935 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:48:02,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-11-18 13:48:02,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 152. [2018-11-18 13:48:02,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-11-18 13:48:02,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 174 transitions. [2018-11-18 13:48:02,944 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 174 transitions. Word has length 35 [2018-11-18 13:48:02,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:02,945 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 174 transitions. [2018-11-18 13:48:02,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:48:02,945 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 174 transitions. [2018-11-18 13:48:02,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 13:48:02,946 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:02,946 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:02,946 INFO L423 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:02,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:02,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1676423741, now seen corresponding path program 2 times [2018-11-18 13:48:02,946 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:02,946 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:02,961 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 13:48:03,020 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 13:48:03,020 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:48:03,024 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:03,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:48:03,049 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:03,055 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:03,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:03,059 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,067 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,073 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,087 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:24, output treesize:12 [2018-11-18 13:48:03,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-18 13:48:03,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:48:03,124 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,125 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,126 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,126 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-18 13:48:03,136 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:48:03,136 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:48:03,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:03,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 13:48:03,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:48:03,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:48:03,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:48:03,139 INFO L87 Difference]: Start difference. First operand 152 states and 174 transitions. Second operand 8 states. [2018-11-18 13:48:03,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:03,826 INFO L93 Difference]: Finished difference Result 175 states and 200 transitions. [2018-11-18 13:48:03,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 13:48:03,826 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2018-11-18 13:48:03,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:03,827 INFO L225 Difference]: With dead ends: 175 [2018-11-18 13:48:03,827 INFO L226 Difference]: Without dead ends: 172 [2018-11-18 13:48:03,827 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:48:03,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-11-18 13:48:03,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 158. [2018-11-18 13:48:03,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-11-18 13:48:03,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 180 transitions. [2018-11-18 13:48:03,838 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 180 transitions. Word has length 38 [2018-11-18 13:48:03,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:03,839 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 180 transitions. [2018-11-18 13:48:03,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:48:03,839 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 180 transitions. [2018-11-18 13:48:03,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 13:48:03,840 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:03,840 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:03,840 INFO L423 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:03,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:03,840 INFO L82 PathProgramCache]: Analyzing trace with hash 222673508, now seen corresponding path program 1 times [2018-11-18 13:48:03,840 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:03,841 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:03,864 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:48:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:03,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:03,931 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:48:03,931 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,935 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,935 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 13:48:03,948 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:03,950 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:03,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 13:48:03,951 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:48:03,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:48:03,982 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,984 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:03,999 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:48:04,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:48:04,001 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,003 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,011 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,011 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:41, output treesize:25 [2018-11-18 13:48:04,049 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:48:04,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:04,058 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:04,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:04,063 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,078 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,093 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2018-11-18 13:48:04,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:04,146 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:04,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:04,150 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,158 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,168 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,191 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:54, output treesize:41 [2018-11-18 13:48:04,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2018-11-18 13:48:04,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2018-11-18 13:48:04,259 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:48:04,269 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,274 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-18 13:48:04,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:48:04,286 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2018-11-18 13:48:04,291 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,293 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,295 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:04,295 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:68, output treesize:7 [2018-11-18 13:48:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:48:04,316 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:48:04,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:04,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 13:48:04,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:48:04,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:48:04,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:48:04,318 INFO L87 Difference]: Start difference. First operand 158 states and 180 transitions. Second operand 8 states. [2018-11-18 13:48:05,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:05,804 INFO L93 Difference]: Finished difference Result 174 states and 198 transitions. [2018-11-18 13:48:05,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 13:48:05,804 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-11-18 13:48:05,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:05,805 INFO L225 Difference]: With dead ends: 174 [2018-11-18 13:48:05,805 INFO L226 Difference]: Without dead ends: 171 [2018-11-18 13:48:05,805 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:48:05,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-11-18 13:48:05,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 161. [2018-11-18 13:48:05,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-11-18 13:48:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 183 transitions. [2018-11-18 13:48:05,812 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 183 transitions. Word has length 41 [2018-11-18 13:48:05,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:05,812 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 183 transitions. [2018-11-18 13:48:05,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:48:05,812 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 183 transitions. [2018-11-18 13:48:05,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 13:48:05,813 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:05,814 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:05,814 INFO L423 AbstractCegarLoop]: === Iteration 11 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:05,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:05,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1013108985, now seen corresponding path program 1 times [2018-11-18 13:48:05,814 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:05,814 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:05,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:05,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:05,877 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:48:05,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:05,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:48:05,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:48:05,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:48:05,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:48:05,879 INFO L87 Difference]: Start difference. First operand 161 states and 183 transitions. Second operand 6 states. [2018-11-18 13:48:05,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:05,946 INFO L93 Difference]: Finished difference Result 189 states and 216 transitions. [2018-11-18 13:48:05,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:48:05,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-11-18 13:48:05,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:05,948 INFO L225 Difference]: With dead ends: 189 [2018-11-18 13:48:05,948 INFO L226 Difference]: Without dead ends: 186 [2018-11-18 13:48:05,948 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:48:05,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-11-18 13:48:05,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 168. [2018-11-18 13:48:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-11-18 13:48:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 191 transitions. [2018-11-18 13:48:05,957 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 191 transitions. Word has length 45 [2018-11-18 13:48:05,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:05,957 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 191 transitions. [2018-11-18 13:48:05,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:48:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 191 transitions. [2018-11-18 13:48:05,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 13:48:05,958 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:05,958 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:05,958 INFO L423 AbstractCegarLoop]: === Iteration 12 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:05,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:05,958 INFO L82 PathProgramCache]: Analyzing trace with hash 655965923, now seen corresponding path program 1 times [2018-11-18 13:48:05,959 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:05,960 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:05,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:06,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:06,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:48:06,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:06,050 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:06,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:06,054 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,065 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,074 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:48:06,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:06,105 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:06,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:06,110 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,118 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,124 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,137 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:36, output treesize:22 [2018-11-18 13:48:06,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:48:06,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:48:06,222 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,224 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:48:06,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:48:06,232 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,233 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:06,236 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 13:48:06,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:06,253 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:48:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:06,332 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:48:06,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2018-11-18 13:48:06,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 13:48:06,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 13:48:06,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-11-18 13:48:06,333 INFO L87 Difference]: Start difference. First operand 168 states and 191 transitions. Second operand 12 states. [2018-11-18 13:48:09,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:09,308 INFO L93 Difference]: Finished difference Result 250 states and 293 transitions. [2018-11-18 13:48:09,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 13:48:09,309 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2018-11-18 13:48:09,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:09,310 INFO L225 Difference]: With dead ends: 250 [2018-11-18 13:48:09,310 INFO L226 Difference]: Without dead ends: 247 [2018-11-18 13:48:09,310 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-18 13:48:09,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-11-18 13:48:09,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 178. [2018-11-18 13:48:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-18 13:48:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 202 transitions. [2018-11-18 13:48:09,324 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 202 transitions. Word has length 48 [2018-11-18 13:48:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:09,324 INFO L480 AbstractCegarLoop]: Abstraction has 178 states and 202 transitions. [2018-11-18 13:48:09,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 13:48:09,324 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 202 transitions. [2018-11-18 13:48:09,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 13:48:09,325 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:09,325 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:09,325 INFO L423 AbstractCegarLoop]: === Iteration 13 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:09,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:09,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1407125327, now seen corresponding path program 1 times [2018-11-18 13:48:09,325 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:09,326 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:09,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:09,377 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:09,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:48:09,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:09,399 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:09,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:09,401 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:09,407 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:09,412 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:09,420 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:09,420 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-11-18 13:48:09,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-18 13:48:09,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:48:09,463 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:09,464 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:09,466 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:09,466 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-18 13:48:09,477 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:09,477 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:48:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:09,544 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:48:09,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2018-11-18 13:48:09,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 13:48:09,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 13:48:09,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-11-18 13:48:09,545 INFO L87 Difference]: Start difference. First operand 178 states and 202 transitions. Second operand 12 states. [2018-11-18 13:48:11,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:11,266 INFO L93 Difference]: Finished difference Result 226 states and 258 transitions. [2018-11-18 13:48:11,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 13:48:11,266 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-11-18 13:48:11,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:11,267 INFO L225 Difference]: With dead ends: 226 [2018-11-18 13:48:11,267 INFO L226 Difference]: Without dead ends: 222 [2018-11-18 13:48:11,267 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-11-18 13:48:11,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-11-18 13:48:11,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 186. [2018-11-18 13:48:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-11-18 13:48:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 211 transitions. [2018-11-18 13:48:11,277 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 211 transitions. Word has length 47 [2018-11-18 13:48:11,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:11,277 INFO L480 AbstractCegarLoop]: Abstraction has 186 states and 211 transitions. [2018-11-18 13:48:11,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 13:48:11,277 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 211 transitions. [2018-11-18 13:48:11,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 13:48:11,278 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:11,278 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:11,278 INFO L423 AbstractCegarLoop]: === Iteration 14 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:11,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:11,278 INFO L82 PathProgramCache]: Analyzing trace with hash -343671993, now seen corresponding path program 1 times [2018-11-18 13:48:11,278 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:11,278 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:11,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:11,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:11,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:48:11,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:11,384 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:11,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:11,393 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,407 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,417 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:48:11,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:11,450 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:11,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:11,455 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,464 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,471 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,484 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,484 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:36, output treesize:3 [2018-11-18 13:48:11,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-11-18 13:48:11,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:48:11,600 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,620 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-18 13:48:11,640 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:48:11,640 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,642 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-18 13:48:11,655 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:48:11,655 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,661 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,670 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-11-18 13:48:11,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:48:11,672 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,673 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:11,676 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:48:11,677 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:47, output treesize:9 [2018-11-18 13:48:11,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:11,696 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:48:11,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:11,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 13:48:11,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 13:48:11,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 13:48:11,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-11-18 13:48:11,699 INFO L87 Difference]: Start difference. First operand 186 states and 211 transitions. Second operand 12 states. [2018-11-18 13:48:12,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:12,767 INFO L93 Difference]: Finished difference Result 217 states and 247 transitions. [2018-11-18 13:48:12,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:48:12,768 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2018-11-18 13:48:12,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:12,769 INFO L225 Difference]: With dead ends: 217 [2018-11-18 13:48:12,769 INFO L226 Difference]: Without dead ends: 214 [2018-11-18 13:48:12,770 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2018-11-18 13:48:12,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-11-18 13:48:12,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 202. [2018-11-18 13:48:12,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-11-18 13:48:12,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 229 transitions. [2018-11-18 13:48:12,784 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 229 transitions. Word has length 51 [2018-11-18 13:48:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:12,785 INFO L480 AbstractCegarLoop]: Abstraction has 202 states and 229 transitions. [2018-11-18 13:48:12,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 13:48:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 229 transitions. [2018-11-18 13:48:12,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 13:48:12,786 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:12,786 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:12,786 INFO L423 AbstractCegarLoop]: === Iteration 15 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:12,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:12,787 INFO L82 PathProgramCache]: Analyzing trace with hash -886174675, now seen corresponding path program 2 times [2018-11-18 13:48:12,787 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:12,787 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:12,804 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 13:48:12,831 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 13:48:12,831 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:48:12,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:12,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 13:48:12,912 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-18 13:48:12,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:12,915 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:12,924 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 13:48:12,926 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-18 13:48:12,926 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:12,928 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:12,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:12,931 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:37, output treesize:7 [2018-11-18 13:48:12,950 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 13:48:12,950 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:48:12,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:12,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 13:48:12,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 13:48:12,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 13:48:12,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:48:12,952 INFO L87 Difference]: Start difference. First operand 202 states and 229 transitions. Second operand 7 states. [2018-11-18 13:48:13,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:13,904 INFO L93 Difference]: Finished difference Result 204 states and 230 transitions. [2018-11-18 13:48:13,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:48:13,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2018-11-18 13:48:13,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:13,905 INFO L225 Difference]: With dead ends: 204 [2018-11-18 13:48:13,905 INFO L226 Difference]: Without dead ends: 201 [2018-11-18 13:48:13,905 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:48:13,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-11-18 13:48:13,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 191. [2018-11-18 13:48:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-11-18 13:48:13,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 215 transitions. [2018-11-18 13:48:13,916 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 215 transitions. Word has length 54 [2018-11-18 13:48:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:13,917 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 215 transitions. [2018-11-18 13:48:13,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 13:48:13,917 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 215 transitions. [2018-11-18 13:48:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 13:48:13,917 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:13,917 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:13,918 INFO L423 AbstractCegarLoop]: === Iteration 16 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:13,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:13,918 INFO L82 PathProgramCache]: Analyzing trace with hash -106835233, now seen corresponding path program 1 times [2018-11-18 13:48:13,918 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:13,918 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:13,933 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:48:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:14,014 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:14,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:48:14,019 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,025 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 13:48:14,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:48:14,039 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:14,042 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:14,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:14,044 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,050 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,055 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,064 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,065 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:29, output treesize:17 [2018-11-18 13:48:14,075 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:14,076 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:14,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:48:14,077 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,086 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2018-11-18 13:48:14,103 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:14,104 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:14,104 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:14,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-11-18 13:48:14,105 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 13:48:14,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:48:14,143 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,149 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,166 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,166 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:48, output treesize:34 [2018-11-18 13:48:14,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2018-11-18 13:48:14,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:14,249 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:14,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:14,250 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,261 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,281 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:48:14,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:14,335 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:14,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:14,339 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,352 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,360 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,386 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,386 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:63, output treesize:74 [2018-11-18 13:48:14,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-11-18 13:48:14,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-11-18 13:48:14,498 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:48:14,505 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:48:14,521 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. [2018-11-18 13:48:14,521 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:62 [2018-11-18 13:48:14,571 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-11-18 13:48:14,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:48:14,575 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:48:14,592 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 13:48:14,601 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,602 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,603 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:14,603 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:63, output treesize:4 [2018-11-18 13:48:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:14,630 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:48:29,033 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 36 [2018-11-18 13:48:29,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 62 [2018-11-18 13:48:29,218 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-11-18 13:48:29,220 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 13:48:29,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:29,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 48 [2018-11-18 13:48:29,228 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:29,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 51 [2018-11-18 13:48:29,232 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:29,251 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:29,278 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:29,318 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 57 [2018-11-18 13:48:29,468 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2018-11-18 13:48:29,471 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:29,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 59 [2018-11-18 13:48:29,528 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 13:48:29,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-18 13:48:29,673 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:29,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 20 [2018-11-18 13:48:29,684 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-11-18 13:48:29,710 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:48:29,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-18 13:48:29,715 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:29,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2018-11-18 13:48:29,716 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:29,726 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:29,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-18 13:48:29,731 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:29,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-18 13:48:29,734 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:29,740 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:29,805 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:29,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-18 13:48:29,814 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:29,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 47 [2018-11-18 13:48:29,961 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-11-18 13:48:29,965 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:29,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 12 [2018-11-18 13:48:29,967 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:30,029 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:30,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-18 13:48:30,044 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-11-18 13:48:30,047 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:30,047 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:30,056 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:30,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2018-11-18 13:48:30,061 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:30,115 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:30,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-18 13:48:30,118 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:30,135 INFO L267 ElimStorePlain]: Start of recursive call 15: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:48:30,155 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:48:30,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2018-11-18 13:48:30,175 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:30,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-11-18 13:48:30,178 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:30,212 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:30,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 23 [2018-11-18 13:48:30,225 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-11-18 13:48:30,263 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:48:30,305 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-18 13:48:30,340 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 13:48:30,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 5 xjuncts. [2018-11-18 13:48:30,381 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 5 variables, input treesize:103, output treesize:110 [2018-11-18 13:48:30,533 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:30,534 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:48:30,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2018-11-18 13:48:30,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-18 13:48:30,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 13:48:30,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=331, Unknown=1, NotChecked=0, Total=380 [2018-11-18 13:48:30,535 INFO L87 Difference]: Start difference. First operand 191 states and 215 transitions. Second operand 20 states. [2018-11-18 13:48:34,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:34,938 INFO L93 Difference]: Finished difference Result 228 states and 258 transitions. [2018-11-18 13:48:34,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:48:34,939 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 53 [2018-11-18 13:48:34,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:34,940 INFO L225 Difference]: With dead ends: 228 [2018-11-18 13:48:34,940 INFO L226 Difference]: Without dead ends: 225 [2018-11-18 13:48:34,940 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=114, Invalid=587, Unknown=1, NotChecked=0, Total=702 [2018-11-18 13:48:34,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-11-18 13:48:34,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 197. [2018-11-18 13:48:34,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-11-18 13:48:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 221 transitions. [2018-11-18 13:48:34,957 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 221 transitions. Word has length 53 [2018-11-18 13:48:34,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:34,957 INFO L480 AbstractCegarLoop]: Abstraction has 197 states and 221 transitions. [2018-11-18 13:48:34,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-18 13:48:34,957 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 221 transitions. [2018-11-18 13:48:34,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 13:48:34,958 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:34,958 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:34,958 INFO L423 AbstractCegarLoop]: === Iteration 17 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:34,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:34,959 INFO L82 PathProgramCache]: Analyzing trace with hash -2011770519, now seen corresponding path program 1 times [2018-11-18 13:48:34,959 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:34,959 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:34,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:35,059 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:35,064 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:48:35,064 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,072 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 13:48:35,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:48:35,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:35,090 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:35,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:35,093 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,099 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,104 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,114 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:29, output treesize:17 [2018-11-18 13:48:35,124 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:35,125 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:35,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:48:35,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,134 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2018-11-18 13:48:35,152 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:35,153 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:35,153 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:35,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-11-18 13:48:35,154 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,183 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 13:48:35,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:48:35,187 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,193 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,210 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,210 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:48, output treesize:34 [2018-11-18 13:48:35,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:48:35,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:35,262 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:35,267 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:35,267 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,288 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,300 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2018-11-18 13:48:35,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:35,372 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:35,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:35,373 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,382 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,397 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,423 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,423 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:63, output treesize:74 [2018-11-18 13:48:35,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-11-18 13:48:35,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-11-18 13:48:35,547 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:48:35,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:48:35,590 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. [2018-11-18 13:48:35,591 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:62 [2018-11-18 13:48:35,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-11-18 13:48:35,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 13:48:35,667 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:48:35,675 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:48:35,680 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,681 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,682 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:35,682 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:63, output treesize:4 [2018-11-18 13:48:35,718 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:35,719 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:48:44,087 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 26 [2018-11-18 13:48:51,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 62 [2018-11-18 13:48:51,507 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-11-18 13:48:51,508 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 13:48:51,509 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:51,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 48 [2018-11-18 13:48:51,517 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:51,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 51 [2018-11-18 13:48:51,523 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:51,544 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:51,571 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:51,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 57 [2018-11-18 13:48:51,768 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2018-11-18 13:48:51,772 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:51,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 59 [2018-11-18 13:48:51,839 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 13:48:51,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-18 13:48:51,989 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:51,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2018-11-18 13:48:51,990 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:52,007 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:52,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-18 13:48:52,020 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 20 [2018-11-18 13:48:52,030 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-11-18 13:48:52,055 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:48:52,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-18 13:48:52,061 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,064 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-18 13:48:52,064 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:52,071 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:52,154 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-18 13:48:52,162 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,192 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 47 [2018-11-18 13:48:52,328 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-11-18 13:48:52,330 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,330 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,331 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,335 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2018-11-18 13:48:52,336 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:52,338 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-18 13:48:52,353 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-11-18 13:48:52,436 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-18 13:48:52,439 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:52,495 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 12 [2018-11-18 13:48:52,497 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:52,538 INFO L267 ElimStorePlain]: Start of recursive call 15: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 13:48:52,567 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:48:52,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2018-11-18 13:48:52,603 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 23 [2018-11-18 13:48:52,612 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-11-18 13:48:52,661 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:52,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-11-18 13:48:52,663 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:52,690 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:48:52,733 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-18 13:48:52,766 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 13:48:52,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 5 xjuncts. [2018-11-18 13:48:52,804 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 5 variables, input treesize:103, output treesize:110 [2018-11-18 13:48:52,951 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:52,952 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:48:52,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2018-11-18 13:48:52,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-18 13:48:52,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 13:48:52,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=328, Unknown=4, NotChecked=0, Total=380 [2018-11-18 13:48:52,953 INFO L87 Difference]: Start difference. First operand 197 states and 221 transitions. Second operand 20 states. [2018-11-18 13:48:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:57,484 INFO L93 Difference]: Finished difference Result 227 states and 256 transitions. [2018-11-18 13:48:57,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:48:57,485 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 53 [2018-11-18 13:48:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:57,486 INFO L225 Difference]: With dead ends: 227 [2018-11-18 13:48:57,486 INFO L226 Difference]: Without dead ends: 224 [2018-11-18 13:48:57,486 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=114, Invalid=584, Unknown=4, NotChecked=0, Total=702 [2018-11-18 13:48:57,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-11-18 13:48:57,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 203. [2018-11-18 13:48:57,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-11-18 13:48:57,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 227 transitions. [2018-11-18 13:48:57,504 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 227 transitions. Word has length 53 [2018-11-18 13:48:57,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:57,505 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 227 transitions. [2018-11-18 13:48:57,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-18 13:48:57,505 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 227 transitions. [2018-11-18 13:48:57,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 13:48:57,506 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:57,506 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:57,506 INFO L423 AbstractCegarLoop]: === Iteration 18 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:57,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:57,506 INFO L82 PathProgramCache]: Analyzing trace with hash 51458716, now seen corresponding path program 1 times [2018-11-18 13:48:57,507 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:57,507 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:57,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:57,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:57,614 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:57,614 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:48:57,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:57,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:48:57,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:48:57,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:48:57,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:48:57,617 INFO L87 Difference]: Start difference. First operand 203 states and 227 transitions. Second operand 6 states. [2018-11-18 13:48:57,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:57,795 INFO L93 Difference]: Finished difference Result 269 states and 310 transitions. [2018-11-18 13:48:57,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:48:57,796 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-11-18 13:48:57,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:57,797 INFO L225 Difference]: With dead ends: 269 [2018-11-18 13:48:57,797 INFO L226 Difference]: Without dead ends: 216 [2018-11-18 13:48:57,798 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:48:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-11-18 13:48:57,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 209. [2018-11-18 13:48:57,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-11-18 13:48:57,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2018-11-18 13:48:57,817 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 56 [2018-11-18 13:48:57,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:57,817 INFO L480 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2018-11-18 13:48:57,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:48:57,817 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2018-11-18 13:48:57,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 13:48:57,818 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:57,818 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:57,818 INFO L423 AbstractCegarLoop]: === Iteration 19 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:57,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:57,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1528157330, now seen corresponding path program 1 times [2018-11-18 13:48:57,819 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:57,819 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:57,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:57,875 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:57,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:48:57,956 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:48:57,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:57,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 13:48:57,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:48:57,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:48:57,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:48:57,958 INFO L87 Difference]: Start difference. First operand 209 states and 235 transitions. Second operand 10 states. [2018-11-18 13:48:58,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:58,379 INFO L93 Difference]: Finished difference Result 251 states and 291 transitions. [2018-11-18 13:48:58,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:48:58,382 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-11-18 13:48:58,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:58,384 INFO L225 Difference]: With dead ends: 251 [2018-11-18 13:48:58,384 INFO L226 Difference]: Without dead ends: 248 [2018-11-18 13:48:58,384 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-11-18 13:48:58,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-11-18 13:48:58,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 222. [2018-11-18 13:48:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-18 13:48:58,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 256 transitions. [2018-11-18 13:48:58,401 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 256 transitions. Word has length 57 [2018-11-18 13:48:58,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:58,401 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 256 transitions. [2018-11-18 13:48:58,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:48:58,401 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 256 transitions. [2018-11-18 13:48:58,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 13:48:58,402 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:58,402 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:58,403 INFO L423 AbstractCegarLoop]: === Iteration 20 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:58,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:58,403 INFO L82 PathProgramCache]: Analyzing trace with hash 484218484, now seen corresponding path program 1 times [2018-11-18 13:48:58,403 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:58,403 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:58,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:58,468 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:58,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:48:58,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:48:58,504 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:58,506 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:58,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:48:58,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:48:58,514 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:58,515 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:58,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:58,518 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-11-18 13:48:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:48:58,527 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:48:58,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:48:58,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:48:58,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:48:58,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:48:58,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:48:58,530 INFO L87 Difference]: Start difference. First operand 222 states and 256 transitions. Second operand 5 states. [2018-11-18 13:48:58,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:48:58,988 INFO L93 Difference]: Finished difference Result 224 states and 257 transitions. [2018-11-18 13:48:58,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:48:58,994 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2018-11-18 13:48:58,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:48:58,995 INFO L225 Difference]: With dead ends: 224 [2018-11-18 13:48:58,995 INFO L226 Difference]: Without dead ends: 204 [2018-11-18 13:48:58,995 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:48:58,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-11-18 13:48:59,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2018-11-18 13:48:59,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-11-18 13:48:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 235 transitions. [2018-11-18 13:48:59,007 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 235 transitions. Word has length 57 [2018-11-18 13:48:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:48:59,008 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 235 transitions. [2018-11-18 13:48:59,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:48:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 235 transitions. [2018-11-18 13:48:59,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 13:48:59,009 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:48:59,009 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:48:59,009 INFO L423 AbstractCegarLoop]: === Iteration 21 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:48:59,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:59,009 INFO L82 PathProgramCache]: Analyzing trace with hash -329799874, now seen corresponding path program 1 times [2018-11-18 13:48:59,009 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:48:59,009 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:48:59,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:48:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:59,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:48:59,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:48:59,130 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,138 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,138 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 13:48:59,162 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:59,164 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:59,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-18 13:48:59,165 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:48:59,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:48:59,213 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,216 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:48:59,238 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:48:59,239 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,241 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,254 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:44, output treesize:33 [2018-11-18 13:48:59,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:48:59,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:59,309 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:59,314 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:59,314 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,330 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,348 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:48:59,422 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:48:59,428 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:59,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:48:59,432 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,441 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,451 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,479 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,479 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:65, output treesize:57 [2018-11-18 13:48:59,498 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:59,500 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:59,500 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:59,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-18 13:48:59,501 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,523 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,523 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:76 [2018-11-18 13:48:59,559 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:59,561 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:59,562 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:48:59,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 37 [2018-11-18 13:48:59,563 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 70 [2018-11-18 13:48:59,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:48:59,661 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,680 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 59 [2018-11-18 13:48:59,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:48:59,744 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,757 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,790 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,791 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:112, output treesize:91 [2018-11-18 13:48:59,896 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:59,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 104 [2018-11-18 13:48:59,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 13:48:59,918 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:48:59,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2018-11-18 13:48:59,919 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,934 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:48:59,974 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,044 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:49:00,075 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 103 [2018-11-18 13:49:00,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:49:00,089 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:49:00,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:49:00,092 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,103 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,125 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,177 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,177 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:120, output treesize:175 [2018-11-18 13:49:00,571 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:49:00,572 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:49:00,574 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:49:00,578 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:49:00,581 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:49:00,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 238 [2018-11-18 13:49:00,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 13:49:00,606 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 48 [2018-11-18 13:49:00,649 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:49:00,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 38 [2018-11-18 13:49:00,672 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:49:00,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:49:00,691 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 13:49:00,736 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:49:00,741 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:49:00,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 82 [2018-11-18 13:49:00,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:49:00,751 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 17 [2018-11-18 13:49:00,776 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 13:49:00,788 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:49:00,796 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,797 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,803 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:49:00,803 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:231, output treesize:7 [2018-11-18 13:49:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:49:00,854 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:49:08,152 WARN L180 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 73 [2018-11-18 13:49:23,485 WARN L180 SmtUtils]: Spent 4.24 s on a formula simplification that was a NOOP. DAG size: 85 [2018-11-18 13:50:02,535 WARN L180 SmtUtils]: Spent 6.53 s on a formula simplification that was a NOOP. DAG size: 103 [2018-11-18 13:50:02,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 594 treesize of output 411 [2018-11-18 13:50:03,061 WARN L180 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2018-11-18 13:50:03,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:03,071 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:03,227 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:03,228 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:03,313 INFO L303 Elim1Store]: Index analysis took 104 ms [2018-11-18 13:50:03,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 314 treesize of output 283 [2018-11-18 13:50:03,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 272 [2018-11-18 13:50:03,454 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:03,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 24 [2018-11-18 13:50:03,456 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:03,557 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:03,904 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:03,905 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:03,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 266 [2018-11-18 13:50:03,913 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:03,914 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:03,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 27 [2018-11-18 13:50:03,915 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:03,968 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:04,284 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:04,285 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:04,285 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:04,406 INFO L303 Elim1Store]: Index analysis took 132 ms [2018-11-18 13:50:04,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 232 [2018-11-18 13:50:04,651 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2018-11-18 13:50:04,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:04,656 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:04,731 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:04,731 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:04,732 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:04,736 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:04,736 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:04,757 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:04,764 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:04,777 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 210 treesize of output 241 [2018-11-18 13:50:04,824 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:05,048 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 201 treesize of output 249 [2018-11-18 13:50:10,113 WARN L180 SmtUtils]: Spent 5.06 s on a formula simplification. DAG size of input: 241 DAG size of output: 234 [2018-11-18 13:50:10,118 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 13:50:10,119 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:10,123 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 13:50:10,123 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:10,127 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 13:50:10,127 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:11,790 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 172 [2018-11-18 13:50:11,790 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:12,270 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:12,271 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 613 [2018-11-18 13:50:12,271 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:12,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 181 [2018-11-18 13:50:12,771 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:13,184 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:13,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 191 [2018-11-18 13:50:13,186 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:13,594 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:13,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 467 treesize of output 464 [2018-11-18 13:50:13,595 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:14,009 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:14,012 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:14,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 748 [2018-11-18 13:50:14,023 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:14,466 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:14,470 INFO L477 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 172 treesize of output 599 [2018-11-18 13:50:14,470 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:14,749 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:14,751 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:14,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 186 [2018-11-18 13:50:14,752 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:14,956 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:14,958 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:14,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 180 [2018-11-18 13:50:14,962 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:15,221 INFO L267 ElimStorePlain]: Start of recursive call 12: 4 dim-0 vars, 14 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:50:15,375 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,376 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,376 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,376 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 477 treesize of output 475 [2018-11-18 13:50:15,397 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,409 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2018-11-18 13:50:15,410 INFO L267 ElimStorePlain]: Start of recursive call 26: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 13:50:15,474 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,475 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 149 [2018-11-18 13:50:15,476 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:15,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:15,507 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:15,523 INFO L267 ElimStorePlain]: Start of recursive call 25: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:15,528 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,528 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,529 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,529 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,537 INFO L477 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 197 [2018-11-18 13:50:15,544 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:15,544 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:15,598 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:15,599 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,599 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-18 13:50:15,600 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:15,635 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,635 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:15,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2018-11-18 13:50:15,636 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:15,659 INFO L267 ElimStorePlain]: Start of recursive call 29: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:15,724 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:50:15,808 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:50:16,091 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:16,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2018-11-18 13:50:16,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:16,160 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:16,182 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:16,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2018-11-18 13:50:16,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2018-11-18 13:50:16,188 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:16,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:16,202 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:16,205 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:16,213 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:16,316 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:50:16,458 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:50:18,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 594 treesize of output 475 [2018-11-18 13:50:19,023 WARN L180 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2018-11-18 13:50:19,039 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:19,040 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:19,180 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:19,193 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:19,382 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 257 treesize of output 248 [2018-11-18 13:50:19,392 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:19,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 239 [2018-11-18 13:50:19,410 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:19,411 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:19,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 27 [2018-11-18 13:50:19,424 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:19,488 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:19,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 225 treesize of output 228 [2018-11-18 13:50:19,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-18 13:50:19,749 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:19,813 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:19,997 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:19,998 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:19,998 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:20,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 213 [2018-11-18 13:50:20,407 WARN L180 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2018-11-18 13:50:20,413 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:20,413 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:20,473 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:20,476 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:20,477 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:20,477 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:20,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 49 [2018-11-18 13:50:20,516 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:20,517 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:20,518 INFO L477 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 33 [2018-11-18 13:50:20,542 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:20,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 13:50:20,543 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:20,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:20,568 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:20,584 INFO L267 ElimStorePlain]: Start of recursive call 48: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:20,617 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:20,617 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:20,633 INFO L267 ElimStorePlain]: Start of recursive call 47: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:20,663 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:20,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2018-11-18 13:50:20,833 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:20,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-18 13:50:20,837 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:20,860 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:20,915 INFO L267 ElimStorePlain]: Start of recursive call 40: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:50:21,013 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:50:22,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 130 [2018-11-18 13:50:22,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:22,612 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,651 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:22,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 61 [2018-11-18 13:50:22,673 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:22,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 25 [2018-11-18 13:50:22,680 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:50:22,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-11-18 13:50:22,683 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,692 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,711 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:22,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2018-11-18 13:50:22,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:22,752 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,772 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:22,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-11-18 13:50:22,779 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:22,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 8 [2018-11-18 13:50:22,782 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:22,792 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,794 INFO L267 ElimStorePlain]: Start of recursive call 61: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,797 INFO L267 ElimStorePlain]: Start of recursive call 59: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,800 INFO L267 ElimStorePlain]: Start of recursive call 56: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,821 INFO L267 ElimStorePlain]: Start of recursive call 54: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 324 treesize of output 205 [2018-11-18 13:50:22,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:22,932 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:22,976 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:22,976 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:22,976 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:22,981 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:22,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 111 [2018-11-18 13:50:22,999 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 13:50:23,008 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,009 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 31 [2018-11-18 13:50:23,009 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,020 INFO L267 ElimStorePlain]: Start of recursive call 67: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,043 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,044 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,044 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,045 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 88 [2018-11-18 13:50:23,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:23,141 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,162 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,162 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,163 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,163 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,167 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2018-11-18 13:50:23,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:23,171 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 4 [2018-11-18 13:50:23,191 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,205 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,205 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 12 [2018-11-18 13:50:23,205 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,212 INFO L267 ElimStorePlain]: Start of recursive call 71: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,218 INFO L267 ElimStorePlain]: Start of recursive call 69: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,224 INFO L267 ElimStorePlain]: Start of recursive call 66: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,239 INFO L267 ElimStorePlain]: Start of recursive call 64: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 132 [2018-11-18 13:50:23,780 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-11-18 13:50:23,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:23,784 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,822 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,823 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,823 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2018-11-18 13:50:23,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2018-11-18 13:50:23,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-18 13:50:23,854 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,862 INFO L267 ElimStorePlain]: Start of recursive call 78: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,881 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,881 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,882 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 62 [2018-11-18 13:50:23,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:23,944 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,971 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,972 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,972 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:23,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 42 [2018-11-18 13:50:23,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 6 [2018-11-18 13:50:23,983 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:23,997 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:23,997 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:24,006 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,008 INFO L267 ElimStorePlain]: Start of recursive call 82: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,011 INFO L267 ElimStorePlain]: Start of recursive call 80: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,014 INFO L267 ElimStorePlain]: Start of recursive call 77: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,028 INFO L267 ElimStorePlain]: Start of recursive call 75: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 130 [2018-11-18 13:50:24,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:24,136 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,183 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:24,189 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:24,190 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:24,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2018-11-18 13:50:24,216 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2018-11-18 13:50:24,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-18 13:50:24,222 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,231 INFO L267 ElimStorePlain]: Start of recursive call 89: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,255 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:24,255 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:24,256 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:24,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 62 [2018-11-18 13:50:24,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:50:24,317 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,343 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:24,343 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:24,343 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:50:24,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2018-11-18 13:50:24,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:24,353 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:50:24,378 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 4 [2018-11-18 13:50:24,389 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,392 INFO L267 ElimStorePlain]: Start of recursive call 93: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,394 INFO L267 ElimStorePlain]: Start of recursive call 91: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,397 INFO L267 ElimStorePlain]: Start of recursive call 88: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,414 INFO L267 ElimStorePlain]: Start of recursive call 86: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:50:24,572 INFO L267 ElimStorePlain]: Start of recursive call 1: 14 dim-0 vars, 4 dim-2 vars, End of recursive call: 10 dim-0 vars, and 5 xjuncts. [2018-11-18 13:50:24,572 INFO L202 ElimStorePlain]: Needed 96 recursive calls to eliminate 18 variables, input treesize:1189, output treesize:165 [2018-11-18 13:50:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:50:26,818 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:50:26,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2018-11-18 13:50:26,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-18 13:50:26,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-18 13:50:26,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=506, Unknown=17, NotChecked=0, Total=600 [2018-11-18 13:50:26,819 INFO L87 Difference]: Start difference. First operand 204 states and 235 transitions. Second operand 25 states. [2018-11-18 13:50:30,046 WARN L180 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2018-11-18 13:50:32,857 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-11-18 13:50:33,840 WARN L180 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 124 [2018-11-18 13:50:34,460 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2018-11-18 13:50:40,141 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-11-18 13:50:42,337 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-11-18 13:51:01,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:51:01,217 INFO L93 Difference]: Finished difference Result 226 states and 260 transitions. [2018-11-18 13:51:01,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 13:51:01,224 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 56 [2018-11-18 13:51:01,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:51:01,225 INFO L225 Difference]: With dead ends: 226 [2018-11-18 13:51:01,225 INFO L226 Difference]: Without dead ends: 223 [2018-11-18 13:51:01,226 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 71.7s TimeCoverageRelationStatistics Valid=184, Invalid=987, Unknown=19, NotChecked=0, Total=1190 [2018-11-18 13:51:01,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-11-18 13:51:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 207. [2018-11-18 13:51:01,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-11-18 13:51:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 238 transitions. [2018-11-18 13:51:01,242 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 238 transitions. Word has length 56 [2018-11-18 13:51:01,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:51:01,243 INFO L480 AbstractCegarLoop]: Abstraction has 207 states and 238 transitions. [2018-11-18 13:51:01,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-18 13:51:01,243 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 238 transitions. [2018-11-18 13:51:01,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 13:51:01,244 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:51:01,244 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:51:01,244 INFO L423 AbstractCegarLoop]: === Iteration 22 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:51:01,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:51:01,245 INFO L82 PathProgramCache]: Analyzing trace with hash -919159880, now seen corresponding path program 1 times [2018-11-18 13:51:01,245 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:51:01,245 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:51:01,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:51:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:51:01,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:51:01,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:51:01,374 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,380 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 13:51:01,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:51:01,409 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:51:01,414 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:01,418 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:51:01,418 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,431 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,442 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:51:01,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:51:01,481 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:01,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:51:01,484 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,492 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,499 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,515 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,516 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:41, output treesize:27 [2018-11-18 13:51:01,532 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:01,533 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:01,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:51:01,534 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,548 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2018-11-18 13:51:01,576 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:01,578 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:01,579 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:01,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-11-18 13:51:01,580 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,654 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-18 13:51:01,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:51:01,659 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,670 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-11-18 13:51:01,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:51:01,716 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,725 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,751 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:69, output treesize:51 [2018-11-18 13:51:01,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 40 [2018-11-18 13:51:01,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:51:01,850 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:01,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:51:01,851 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,868 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,901 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:01,992 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 50 [2018-11-18 13:51:01,998 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:51:02,006 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:02,009 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:51:02,010 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,023 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,044 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,089 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,089 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:76, output treesize:101 [2018-11-18 13:51:02,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 83 [2018-11-18 13:51:02,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 33 [2018-11-18 13:51:02,384 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:51:02,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:51:02,411 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:51:02,428 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,438 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:51:02,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2018-11-18 13:51:02,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 13:51:02,474 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:51:02,482 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:51:02,487 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,489 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,493 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:02,493 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:122, output treesize:7 [2018-11-18 13:51:02,535 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:51:02,535 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:51:23,498 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-11-18 13:51:43,781 WARN L180 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 55 [2018-11-18 13:51:44,206 WARN L180 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2018-11-18 13:51:44,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 78 [2018-11-18 13:51:44,361 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-11-18 13:51:44,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2018-11-18 13:51:44,375 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:44,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 52 [2018-11-18 13:51:44,381 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:44,419 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:44,472 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:44,518 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 58 [2018-11-18 13:51:44,697 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2018-11-18 13:51:44,701 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:44,713 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:44,719 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:44,737 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 67 [2018-11-18 13:51:44,738 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-18 13:51:45,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2018-11-18 13:51:45,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 9 [2018-11-18 13:51:45,017 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:45,027 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:45,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2018-11-18 13:51:45,035 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2018-11-18 13:51:45,045 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-18 13:51:45,078 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:51:45,165 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 42 [2018-11-18 13:51:45,180 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,181 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 46 [2018-11-18 13:51:45,279 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,279 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,281 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:45,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-11-18 13:51:45,285 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:45,320 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 22 [2018-11-18 13:51:45,333 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-11-18 13:51:45,351 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:51:45,367 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:51:45,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 40 [2018-11-18 13:51:45,396 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 25 [2018-11-18 13:51:45,406 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-11-18 13:51:45,458 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,460 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2018-11-18 13:51:45,460 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:45,496 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:51:45,535 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 13:51:45,576 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 13:51:45,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 78 [2018-11-18 13:51:45,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2018-11-18 13:51:45,833 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 52 [2018-11-18 13:51:45,842 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:45,873 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:45,918 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:45,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 58 [2018-11-18 13:51:46,116 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2018-11-18 13:51:46,119 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,132 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,139 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 67 [2018-11-18 13:51:46,156 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-11-18 13:51:46,361 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 42 [2018-11-18 13:51:46,373 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,413 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 48 [2018-11-18 13:51:46,550 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-11-18 13:51:46,553 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 17 [2018-11-18 13:51:46,558 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:46,562 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,577 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 22 [2018-11-18 13:51:46,578 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 2 xjuncts. [2018-11-18 13:51:46,581 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 30 [2018-11-18 13:51:46,608 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 4 xjuncts. [2018-11-18 13:51:46,694 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,694 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,695 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:46,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-11-18 13:51:46,699 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:46,743 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-11-18 13:51:46,745 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:46,765 INFO L267 ElimStorePlain]: Start of recursive call 24: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:51:46,784 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:51:46,803 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 40 [2018-11-18 13:51:46,807 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2018-11-18 13:51:46,810 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:46,848 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:46,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 25 [2018-11-18 13:51:46,859 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 2 xjuncts. [2018-11-18 13:51:46,902 INFO L267 ElimStorePlain]: Start of recursive call 30: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:51:47,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-18 13:51:47,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 9 [2018-11-18 13:51:47,293 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:47,305 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:47,348 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 13:51:47,395 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 13:51:47,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 2 dim-2 vars, End of recursive call: 11 dim-0 vars, and 9 xjuncts. [2018-11-18 13:51:47,558 INFO L202 ElimStorePlain]: Needed 34 recursive calls to eliminate 10 variables, input treesize:209, output treesize:209 [2018-11-18 13:51:47,979 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 83 [2018-11-18 13:51:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 15 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:51:48,001 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:51:48,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2018-11-18 13:51:48,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-18 13:51:48,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 13:51:48,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=316, Unknown=14, NotChecked=0, Total=380 [2018-11-18 13:51:48,002 INFO L87 Difference]: Start difference. First operand 207 states and 238 transitions. Second operand 20 states. [2018-11-18 13:51:52,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:51:52,846 INFO L93 Difference]: Finished difference Result 392 states and 458 transitions. [2018-11-18 13:51:52,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:51:52,848 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 56 [2018-11-18 13:51:52,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:51:52,850 INFO L225 Difference]: With dead ends: 392 [2018-11-18 13:51:52,850 INFO L226 Difference]: Without dead ends: 278 [2018-11-18 13:51:52,850 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 42.5s TimeCoverageRelationStatistics Valid=78, Invalid=460, Unknown=14, NotChecked=0, Total=552 [2018-11-18 13:51:52,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-11-18 13:51:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 264. [2018-11-18 13:51:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-11-18 13:51:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 297 transitions. [2018-11-18 13:51:52,881 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 297 transitions. Word has length 56 [2018-11-18 13:51:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:51:52,881 INFO L480 AbstractCegarLoop]: Abstraction has 264 states and 297 transitions. [2018-11-18 13:51:52,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-18 13:51:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 297 transitions. [2018-11-18 13:51:52,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 13:51:52,882 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:51:52,882 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:51:52,883 INFO L423 AbstractCegarLoop]: === Iteration 23 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:51:52,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:51:52,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1327961604, now seen corresponding path program 1 times [2018-11-18 13:51:52,883 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:51:52,883 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 24 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:51:52,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:51:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:51:52,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:51:53,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:51:53,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:51:53,011 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:53,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:51:53,022 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,036 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:51:53,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:51:53,096 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:53,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:51:53,100 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,108 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,115 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,129 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,129 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:36, output treesize:22 [2018-11-18 13:51:53,166 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:51:53,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:51:53,168 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,184 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 13:51:53,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:51:53,193 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,195 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,199 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:53,199 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 13:51:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:51:53,214 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:51:53,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:51:53,248 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:51:53,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2018-11-18 13:51:53,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:51:53,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:51:53,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=39, Unknown=1, NotChecked=0, Total=56 [2018-11-18 13:51:53,249 INFO L87 Difference]: Start difference. First operand 264 states and 297 transitions. Second operand 8 states. [2018-11-18 13:51:54,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:51:54,246 INFO L93 Difference]: Finished difference Result 335 states and 387 transitions. [2018-11-18 13:51:54,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:51:54,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2018-11-18 13:51:54,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:51:54,249 INFO L225 Difference]: With dead ends: 335 [2018-11-18 13:51:54,249 INFO L226 Difference]: Without dead ends: 242 [2018-11-18 13:51:54,249 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=49, Unknown=1, NotChecked=0, Total=72 [2018-11-18 13:51:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-11-18 13:51:54,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2018-11-18 13:51:54,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-11-18 13:51:54,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 274 transitions. [2018-11-18 13:51:54,267 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 274 transitions. Word has length 63 [2018-11-18 13:51:54,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:51:54,267 INFO L480 AbstractCegarLoop]: Abstraction has 242 states and 274 transitions. [2018-11-18 13:51:54,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:51:54,267 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 274 transitions. [2018-11-18 13:51:54,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 13:51:54,268 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:51:54,268 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:51:54,268 INFO L423 AbstractCegarLoop]: === Iteration 24 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:51:54,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:51:54,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1040802046, now seen corresponding path program 2 times [2018-11-18 13:51:54,269 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:51:54,269 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:51:54,282 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 13:51:54,394 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 13:51:54,395 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:51:54,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:51:54,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:51:54,420 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,421 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 13:51:54,430 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:54,433 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:54,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-18 13:51:54,434 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:51:54,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:51:54,477 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,480 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,499 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 13:51:54,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:51:54,501 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,504 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,517 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,517 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:44, output treesize:33 [2018-11-18 13:51:54,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 13:51:54,565 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:51:54,572 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:54,577 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:51:54,578 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,593 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,611 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 29 [2018-11-18 13:51:54,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:51:54,686 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:54,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:51:54,691 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,702 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,716 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,750 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,751 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:65, output treesize:57 [2018-11-18 13:51:54,775 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:54,776 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:54,777 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:54,777 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 58 [2018-11-18 13:51:54,778 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,819 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,820 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:79 [2018-11-18 13:51:54,865 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:54,867 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:54,868 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:54,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 37 [2018-11-18 13:51:54,869 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:54,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 70 [2018-11-18 13:51:54,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:51:54,989 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,012 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,087 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 59 [2018-11-18 13:51:55,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:51:55,092 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,108 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,150 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:115, output treesize:94 [2018-11-18 13:51:55,236 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:55,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 104 [2018-11-18 13:51:55,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 13:51:55,265 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:55,266 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2018-11-18 13:51:55,266 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,282 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,323 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,402 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:55,404 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:55,439 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 103 [2018-11-18 13:51:55,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:51:55,453 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:55,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:51:55,454 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,466 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,495 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:55,545 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:120, output treesize:166 [2018-11-18 13:51:56,020 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:56,022 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:56,024 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:56,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 163 [2018-11-18 13:51:56,050 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:51:56,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 13:51:56,051 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:56,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2018-11-18 13:51:56,087 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:51:56,110 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 15 [2018-11-18 13:51:56,110 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:56,123 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:51:56,155 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:56,156 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:56,164 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:51:56,166 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 77 [2018-11-18 13:51:56,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-18 13:51:56,170 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:56,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2018-11-18 13:51:56,189 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:56,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 13:51:56,199 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:51:56,201 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:56,206 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:51:56,206 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:205, output treesize:7 [2018-11-18 13:51:56,263 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:51:56,263 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:52:01,055 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-11-18 13:52:03,123 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_77 (_ BitVec 32)) (v_prenex_78 (_ BitVec 32))) (let ((.cse7 (store |c_#memory_$Pointer$.base| v_prenex_78 (store (select |c_#memory_$Pointer$.base| v_prenex_78) (_ bv0 32) (_ bv0 32)))) (.cse6 (store |c_#memory_$Pointer$.offset| v_prenex_78 (store (select |c_#memory_$Pointer$.offset| v_prenex_78) (_ bv0 32) (_ bv0 32))))) (let ((.cse4 (store (store (select .cse6 v_prenex_77) (_ bv0 32) (_ bv0 32)) (_ bv4 32) c_main_~data~0.offset)) (.cse5 (store (store (select .cse7 v_prenex_77) (_ bv0 32) v_prenex_78) (_ bv4 32) c_main_~data~0.base))) (let ((.cse1 (store .cse7 v_prenex_77 .cse5)) (.cse0 (store .cse6 v_prenex_77 .cse4)) (.cse2 (select .cse5 (_ bv0 32))) (.cse3 (select .cse4 (_ bv0 32)))) (or (not (= (select |c_#valid| v_prenex_78) (_ bv0 1))) (= v_prenex_77 (_ bv0 32)) (= (select (select .cse0 (select (select .cse1 c_main_~data~0.base) c_main_~data~0.offset)) (select (select .cse0 c_main_~data~0.base) c_main_~data~0.offset)) (_ bv0 32)) (not (= (_ bv0 1) (select (store |c_#valid| v_prenex_78 (_ bv1 1)) v_prenex_77))) (not (= (select (select .cse1 .cse2) .cse3) (_ bv0 32))) (not (= (_ bv0 32) (select (select .cse0 .cse2) .cse3)))))))) (forall ((|v_main_#t~malloc39.base_15| (_ BitVec 32)) (|v_main_#t~malloc37.base_14| (_ BitVec 32))) (let ((.cse15 (store |c_#memory_$Pointer$.base| |v_main_#t~malloc37.base_14| (store (select |c_#memory_$Pointer$.base| |v_main_#t~malloc37.base_14|) (_ bv0 32) (_ bv0 32)))) (.cse14 (store |c_#memory_$Pointer$.offset| |v_main_#t~malloc37.base_14| (store (select |c_#memory_$Pointer$.offset| |v_main_#t~malloc37.base_14|) (_ bv0 32) (_ bv0 32))))) (let ((.cse12 (store (store (select .cse14 |v_main_#t~malloc39.base_15|) (_ bv0 32) (_ bv0 32)) (_ bv4 32) c_main_~data~0.offset)) (.cse13 (store (store (select .cse15 |v_main_#t~malloc39.base_15|) (_ bv0 32) |v_main_#t~malloc37.base_14|) (_ bv4 32) c_main_~data~0.base))) (let ((.cse8 (store .cse15 |v_main_#t~malloc39.base_15| .cse13)) (.cse11 (store .cse14 |v_main_#t~malloc39.base_15| .cse12)) (.cse9 (select .cse13 (_ bv0 32))) (.cse10 (select .cse12 (_ bv0 32)))) (or (not (= (_ bv0 32) (select (select .cse8 .cse9) .cse10))) (not (= (select (store |c_#valid| |v_main_#t~malloc37.base_14| (_ bv1 1)) |v_main_#t~malloc39.base_15|) (_ bv0 1))) (= (_ bv0 32) (select (select .cse8 (select (select .cse8 c_main_~data~0.base) c_main_~data~0.offset)) (select (select .cse11 c_main_~data~0.base) c_main_~data~0.offset))) (= |v_main_#t~malloc39.base_15| (_ bv0 32)) (not (= (select (select .cse11 .cse9) .cse10) (_ bv0 32))) (not (= (select |c_#valid| |v_main_#t~malloc37.base_14|) (_ bv0 1))))))))) is different from false [2018-11-18 13:52:09,064 WARN L180 SmtUtils]: Spent 2.79 s on a formula simplification that was a NOOP. DAG size: 115 [2018-11-18 13:52:09,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1025 treesize of output 778 [2018-11-18 13:52:09,605 WARN L180 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2018-11-18 13:52:09,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:52:09,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:09,717 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:52:09,718 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:09,733 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:09,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 239 [2018-11-18 13:52:09,760 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:09,775 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:09,793 INFO L477 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 47 [2018-11-18 13:52:09,933 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2018-11-18 13:52:09,940 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:52:09,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2018-11-18 13:52:09,945 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:10,012 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:10,014 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:52:10,015 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:10,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 27 [2018-11-18 13:52:10,020 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:10,052 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:10,090 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:10,095 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:10,099 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 209 [2018-11-18 13:52:10,497 WARN L180 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2018-11-18 13:52:10,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-18 13:52:10,503 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:10,535 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:10,540 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:52:10,540 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:10,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 322 [2018-11-18 13:52:10,551 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:10,591 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 28 [2018-11-18 13:52:10,592 INFO L267 ElimStorePlain]: Start of recursive call 11: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-11-18 13:52:10,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:52:10,623 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:10,626 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:10,629 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:10,636 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:10,650 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:11,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 451 treesize of output 396 [2018-11-18 13:52:11,694 WARN L180 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2018-11-18 13:52:11,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:52:11,707 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:11,885 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:11,896 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:11,967 INFO L303 Elim1Store]: Index analysis took 107 ms [2018-11-18 13:52:12,098 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 343 treesize of output 356 [2018-11-18 13:52:12,110 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 342 treesize of output 345 [2018-11-18 13:52:12,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-18 13:52:12,131 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:12,269 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:13,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 335 treesize of output 338 [2018-11-18 13:52:13,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2018-11-18 13:52:13,153 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-18 13:52:13,237 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:13,793 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:13,794 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:13,908 INFO L303 Elim1Store]: Index analysis took 129 ms [2018-11-18 13:52:13,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 340 treesize of output 339 [2018-11-18 13:52:14,306 WARN L180 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2018-11-18 13:52:14,314 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:52:14,314 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:14,440 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:14,440 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:14,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 317 [2018-11-18 13:52:14,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:52:14,480 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:14,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 281 [2018-11-18 13:52:14,561 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:14,574 INFO L267 ElimStorePlain]: Start of recursive call 22: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:14,612 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:14,919 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:14,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 325 [2018-11-18 13:52:15,209 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-11-18 13:52:15,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:52:15,218 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:15,292 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:15,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 305 [2018-11-18 13:52:15,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 281 [2018-11-18 13:52:15,322 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:15,354 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:15,366 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:15,444 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:15,511 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:15,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 312 treesize of output 193 [2018-11-18 13:52:15,926 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-11-18 13:52:15,931 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:52:15,931 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:15,977 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:15,982 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 109 [2018-11-18 13:52:16,066 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 98 [2018-11-18 13:52:16,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-18 13:52:16,076 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:16,108 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:16,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 96 [2018-11-18 13:52:16,286 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,289 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:52:16,291 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 96 [2018-11-18 13:52:16,294 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:16,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 90 [2018-11-18 13:52:16,361 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:16,415 INFO L267 ElimStorePlain]: Start of recursive call 34: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:52:16,558 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,558 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,559 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,578 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2018-11-18 13:52:16,771 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2018-11-18 13:52:16,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-18 13:52:16,782 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:16,859 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:52:16,859 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,860 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,860 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,872 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,882 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,883 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:16,888 INFO L477 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 98 [2018-11-18 13:52:16,952 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:17,073 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 62 treesize of output 110 [2018-11-18 13:52:18,789 WARN L180 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 217 DAG size of output: 161 [2018-11-18 13:52:18,795 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:18,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 68 [2018-11-18 13:52:18,802 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:19,341 INFO L477 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 42 treesize of output 39 [2018-11-18 13:52:19,341 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:19,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 42 [2018-11-18 13:52:19,699 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:20,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 46 [2018-11-18 13:52:20,014 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:20,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 40 [2018-11-18 13:52:20,303 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:20,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2018-11-18 13:52:20,626 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:20,961 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 39 [2018-11-18 13:52:20,961 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:21,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 32 [2018-11-18 13:52:21,219 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:21,332 INFO L267 ElimStorePlain]: Start of recursive call 40: 3 dim-0 vars, 12 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:52:21,388 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,389 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,389 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,389 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,392 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,392 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 53 [2018-11-18 13:52:21,398 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,402 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,414 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2018-11-18 13:52:21,415 INFO L267 ElimStorePlain]: Start of recursive call 50: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 13:52:21,443 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-18 13:52:21,445 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:21,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:52:21,454 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:21,459 INFO L267 ElimStorePlain]: Start of recursive call 49: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:21,464 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,464 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,464 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,465 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,465 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,466 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 58 [2018-11-18 13:52:21,471 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,484 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,530 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 60 [2018-11-18 13:52:21,538 INFO L267 ElimStorePlain]: Start of recursive call 54: 24 dim-0 vars, End of recursive call: 24 dim-0 vars, and 15 xjuncts. [2018-11-18 13:52:21,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-11-18 13:52:21,608 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:21,617 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:52:21,618 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:21,623 INFO L267 ElimStorePlain]: Start of recursive call 53: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:21,635 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:52:21,648 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:52:21,841 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 70 [2018-11-18 13:52:21,935 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:52:21,935 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:21,961 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,961 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,963 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:52:21,963 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,969 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 72 [2018-11-18 13:52:21,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 13:52:21,993 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:21,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 31 [2018-11-18 13:52:21,994 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,005 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,030 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,031 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,031 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,032 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,036 INFO L477 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 48 [2018-11-18 13:52:22,041 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,060 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2018-11-18 13:52:22,062 INFO L267 ElimStorePlain]: Start of recursive call 63: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-11-18 13:52:22,088 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-18 13:52:22,089 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,094 INFO L267 ElimStorePlain]: Start of recursive call 62: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,097 INFO L267 ElimStorePlain]: Start of recursive call 59: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,104 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,108 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,110 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 78 [2018-11-18 13:52:22,220 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2018-11-18 13:52:22,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:52:22,224 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,247 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:52:22,248 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,248 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,249 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,251 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,252 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,260 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 87 [2018-11-18 13:52:22,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 13:52:22,269 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 31 [2018-11-18 13:52:22,270 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,288 INFO L267 ElimStorePlain]: Start of recursive call 68: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,327 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,327 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,327 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,328 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,328 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 51 [2018-11-18 13:52:22,349 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 14 [2018-11-18 13:52:22,350 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2018-11-18 13:52:22,379 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,390 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:52:22,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-18 13:52:22,391 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,395 INFO L267 ElimStorePlain]: Start of recursive call 70: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,397 INFO L267 ElimStorePlain]: Start of recursive call 67: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,403 INFO L267 ElimStorePlain]: Start of recursive call 65: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:52:22,432 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 13:52:22,470 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 13:52:22,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 4 dim-2 vars, End of recursive call: 10 dim-0 vars, and 5 xjuncts. [2018-11-18 13:52:22,590 INFO L202 ElimStorePlain]: Needed 73 recursive calls to eliminate 16 variables, input treesize:2051, output treesize:165 [2018-11-18 13:52:26,082 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2018-11-18 13:52:26,084 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:52:26,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2018-11-18 13:52:26,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-18 13:52:26,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-18 13:52:26,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=4, NotChecked=42, Total=552 [2018-11-18 13:52:26,085 INFO L87 Difference]: Start difference. First operand 242 states and 274 transitions. Second operand 24 states. [2018-11-18 13:52:37,241 WARN L180 SmtUtils]: Spent 5.67 s on a formula simplification. DAG size of input: 228 DAG size of output: 67 [2018-11-18 13:53:00,130 WARN L180 SmtUtils]: Spent 14.09 s on a formula simplification. DAG size of input: 257 DAG size of output: 90 [2018-11-18 13:53:02,266 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2018-11-18 13:53:04,164 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2018-11-18 13:53:05,725 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-11-18 13:53:11,472 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2018-11-18 13:53:16,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:53:16,122 INFO L93 Difference]: Finished difference Result 254 states and 286 transitions. [2018-11-18 13:53:16,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 13:53:16,123 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 62 [2018-11-18 13:53:16,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:53:16,124 INFO L225 Difference]: With dead ends: 254 [2018-11-18 13:53:16,124 INFO L226 Difference]: Without dead ends: 251 [2018-11-18 13:53:16,125 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 100 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 52.7s TimeCoverageRelationStatistics Valid=146, Invalid=783, Unknown=5, NotChecked=58, Total=992 [2018-11-18 13:53:16,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-11-18 13:53:16,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 245. [2018-11-18 13:53:16,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2018-11-18 13:53:16,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 277 transitions. [2018-11-18 13:53:16,141 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 277 transitions. Word has length 62 [2018-11-18 13:53:16,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:53:16,141 INFO L480 AbstractCegarLoop]: Abstraction has 245 states and 277 transitions. [2018-11-18 13:53:16,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-18 13:53:16,142 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 277 transitions. [2018-11-18 13:53:16,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-18 13:53:16,142 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:53:16,143 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:53:16,143 INFO L423 AbstractCegarLoop]: === Iteration 25 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:53:16,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:53:16,143 INFO L82 PathProgramCache]: Analyzing trace with hash -451240078, now seen corresponding path program 2 times [2018-11-18 13:53:16,143 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:53:16,143 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 26 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:53:16,165 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 13:53:16,232 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 13:53:16,232 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:53:16,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:53:16,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:53:16,263 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:53:16,266 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:16,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:53:16,268 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:16,274 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:16,280 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:16,289 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:16,289 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-11-18 13:53:16,388 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:53:16,388 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:53:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:53:16,553 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:53:16,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2018-11-18 13:53:16,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 13:53:16,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 13:53:16,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-11-18 13:53:16,554 INFO L87 Difference]: Start difference. First operand 245 states and 277 transitions. Second operand 14 states. [2018-11-18 13:53:33,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:53:33,934 INFO L93 Difference]: Finished difference Result 352 states and 411 transitions. [2018-11-18 13:53:33,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 13:53:33,936 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 69 [2018-11-18 13:53:33,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:53:33,937 INFO L225 Difference]: With dead ends: 352 [2018-11-18 13:53:33,937 INFO L226 Difference]: Without dead ends: 250 [2018-11-18 13:53:33,938 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-11-18 13:53:33,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-11-18 13:53:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 227. [2018-11-18 13:53:33,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-11-18 13:53:33,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 261 transitions. [2018-11-18 13:53:33,965 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 261 transitions. Word has length 69 [2018-11-18 13:53:33,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:53:33,965 INFO L480 AbstractCegarLoop]: Abstraction has 227 states and 261 transitions. [2018-11-18 13:53:33,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 13:53:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 261 transitions. [2018-11-18 13:53:33,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-11-18 13:53:33,966 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:53:33,966 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:53:33,966 INFO L423 AbstractCegarLoop]: === Iteration 26 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:53:33,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:53:33,966 INFO L82 PathProgramCache]: Analyzing trace with hash -810586417, now seen corresponding path program 2 times [2018-11-18 13:53:33,967 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:53:33,967 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 27 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:53:33,987 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 13:53:34,047 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 13:53:34,047 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:53:34,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:53:34,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-18 13:53:34,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-18 13:53:34,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:34,091 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:34,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-18 13:53:34,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-18 13:53:34,122 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:34,130 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:34,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-11-18 13:53:34,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 13:53:34,157 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:34,158 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:34,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-11-18 13:53:34,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-18 13:53:34,171 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:34,173 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:34,175 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:53:34,175 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:59, output treesize:9 [2018-11-18 13:53:34,186 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 13:53:34,187 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:53:34,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:53:34,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:53:34,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:53:34,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:53:34,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:53:34,189 INFO L87 Difference]: Start difference. First operand 227 states and 261 transitions. Second operand 5 states. [2018-11-18 13:53:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:53:35,267 INFO L93 Difference]: Finished difference Result 229 states and 262 transitions. [2018-11-18 13:53:35,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:53:35,268 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2018-11-18 13:53:35,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:53:35,269 INFO L225 Difference]: With dead ends: 229 [2018-11-18 13:53:35,269 INFO L226 Difference]: Without dead ends: 225 [2018-11-18 13:53:35,269 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:53:35,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-11-18 13:53:35,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2018-11-18 13:53:35,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-11-18 13:53:35,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 257 transitions. [2018-11-18 13:53:35,291 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 257 transitions. Word has length 68 [2018-11-18 13:53:35,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:53:35,292 INFO L480 AbstractCegarLoop]: Abstraction has 225 states and 257 transitions. [2018-11-18 13:53:35,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:53:35,292 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 257 transitions. [2018-11-18 13:53:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-18 13:53:35,292 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:53:35,292 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:53:35,293 INFO L423 AbstractCegarLoop]: === Iteration 27 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:53:35,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:53:35,293 INFO L82 PathProgramCache]: Analyzing trace with hash 399346449, now seen corresponding path program 1 times [2018-11-18 13:53:35,293 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:53:35,293 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 28 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:53:35,309 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:53:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:53:35,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:53:35,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:53:35,392 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:53:35,395 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:35,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:53:35,397 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:35,403 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:35,408 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:35,418 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:35,418 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-11-18 13:53:35,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-18 13:53:35,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 13:53:35,451 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:35,452 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:35,453 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:35,454 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-18 13:53:35,468 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:53:35,468 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:53:35,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:53:35,498 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:53:35,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 9 [2018-11-18 13:53:35,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 13:53:35,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 13:53:35,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:53:35,499 INFO L87 Difference]: Start difference. First operand 225 states and 257 transitions. Second operand 9 states. [2018-11-18 13:53:51,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:53:51,054 INFO L93 Difference]: Finished difference Result 250 states and 285 transitions. [2018-11-18 13:53:51,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 13:53:51,055 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2018-11-18 13:53:51,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:53:51,056 INFO L225 Difference]: With dead ends: 250 [2018-11-18 13:53:51,056 INFO L226 Difference]: Without dead ends: 237 [2018-11-18 13:53:51,057 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:53:51,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-11-18 13:53:51,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 225. [2018-11-18 13:53:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-11-18 13:53:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 256 transitions. [2018-11-18 13:53:51,071 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 256 transitions. Word has length 72 [2018-11-18 13:53:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:53:51,071 INFO L480 AbstractCegarLoop]: Abstraction has 225 states and 256 transitions. [2018-11-18 13:53:51,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 13:53:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 256 transitions. [2018-11-18 13:53:51,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-18 13:53:51,072 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:53:51,072 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:53:51,072 INFO L423 AbstractCegarLoop]: === Iteration 28 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:53:51,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:53:51,073 INFO L82 PathProgramCache]: Analyzing trace with hash 217758333, now seen corresponding path program 2 times [2018-11-18 13:53:51,073 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 13:53:51,073 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ec66a9e-09a2-4571-9443-871192173fa7/bin-2019/uautomizer/cvc4nyu Starting monitored process 29 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:53:51,093 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 13:53:51,232 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 13:53:51,233 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:53:51,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:53:51,263 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 13:53:51,264 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,268 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 13:53:51,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 13:53:51,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:53:51,287 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:51,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:53:51,291 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,297 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,302 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,313 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:29, output treesize:17 [2018-11-18 13:53:51,324 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:51,325 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:51,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-18 13:53:51,326 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,335 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,335 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2018-11-18 13:53:51,354 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:51,356 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:51,357 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:53:51,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 44 [2018-11-18 13:53:51,357 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 13:53:51,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:53:51,399 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,406 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,428 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,428 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:58, output treesize:55 [2018-11-18 13:53:51,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2018-11-18 13:53:51,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:53:51,512 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:51,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:53:51,513 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,525 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,547 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 13 [2018-11-18 13:53:51,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:53:51,617 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:51,619 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:53:51,619 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,628 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,636 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,677 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,677 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:84, output treesize:105 [2018-11-18 13:53:51,722 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:51,723 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:53:51,723 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:53:51,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 39 treesize of output 117 [2018-11-18 13:53:51,724 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,774 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,774 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:150 [2018-11-18 13:53:51,859 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:51,859 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:53:51,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 81 [2018-11-18 13:53:51,861 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:51,999 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:52,025 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 125 [2018-11-18 13:53:52,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-11-18 13:53:52,034 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,068 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,150 INFO L477 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 36 treesize of output 37 [2018-11-18 13:53:52,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 13:53:52,156 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,169 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,237 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,237 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:186, output treesize:140 [2018-11-18 13:53:52,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 55 [2018-11-18 13:53:52,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 13:53:52,366 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:52,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 13:53:52,367 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,383 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,409 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,494 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:52,507 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:52,511 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:52,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 148 [2018-11-18 13:53:52,542 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 13:53:52,549 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:52,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2018-11-18 13:53:52,550 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,568 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,615 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,695 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:52,695 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:156, output treesize:238 [2018-11-18 13:53:53,354 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:53,355 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:53,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 90 [2018-11-18 13:53:53,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 17 [2018-11-18 13:53:53,369 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:53,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2018-11-18 13:53:53,391 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:53:53,401 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 13:53:53,437 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. [2018-11-18 13:53:53,437 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:237, output treesize:173 [2018-11-18 13:53:53,730 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:53,732 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:53,734 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:53,736 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:53,742 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:53,747 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:53:53,757 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 137 [2018-11-18 13:53:53,828 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2018-11-18 13:53:53,833 INFO L267 ElimStorePlain]: Start of recursive call 3: 24 dim-0 vars, End of recursive call: 24 dim-0 vars, and 15 xjuncts. [2018-11-18 13:53:53,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:53:53,954 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:53,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-18 13:53:53,988 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:54,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2018-11-18 13:53:54,021 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:54,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2018-11-18 13:53:54,032 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 13:53:54,034 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:54,037 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:53:54,037 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:189, output treesize:4 [2018-11-18 13:53:54,124 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:53:54,125 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:54:04,204 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2018-11-18 13:54:04,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 497 treesize of output 451 [2018-11-18 13:54:06,205 WARN L180 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-11-18 13:54:06,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 423 treesize of output 420 [2018-11-18 13:54:06,233 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:06,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 420 treesize of output 420 [2018-11-18 13:54:06,252 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 13:54:06,368 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:54:06,536 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:06,610 INFO L303 Elim1Store]: Index analysis took 135 ms [2018-11-18 13:54:06,719 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 418 [2018-11-18 13:54:09,115 WARN L180 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2018-11-18 13:54:09,122 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:09,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 389 treesize of output 409 [2018-11-18 13:54:09,220 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-11-18 13:54:10,452 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:10,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 404 treesize of output 395 [2018-11-18 13:54:10,483 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:10,484 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:10,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 381 treesize of output 396 [2018-11-18 13:54:11,852 WARN L180 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2018-11-18 13:54:11,864 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:11,865 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:11,870 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:54:11,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 371 treesize of output 367 [2018-11-18 13:54:11,896 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 13:54:12,012 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:12,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 378 treesize of output 365 [2018-11-18 13:54:12,085 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-18 13:54:12,296 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:54:12,442 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:54:12,545 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 391 treesize of output 387 [2018-11-18 13:54:12,553 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:12,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 375 treesize of output 358 [2018-11-18 13:54:12,564 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 13:54:12,838 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:13,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 378 treesize of output 373 [2018-11-18 13:54:13,001 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 4 xjuncts. [2018-11-18 13:54:13,450 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 13:54:14,870 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 377 [2018-11-18 13:54:14,875 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:14,875 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:54:14,878 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:54:14,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 367 treesize of output 363 [2018-11-18 13:54:14,886 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 13:54:14,952 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:54:14,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 381 treesize of output 373 [2018-11-18 13:54:15,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 369 treesize of output 357 [2018-11-18 13:54:15,034 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-18 13:54:15,142 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:54:15,674 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 13:54:16,149 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 13:54:16,701 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 5 xjuncts. [2018-11-18 13:54:16,701 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 3 variables, input treesize:710, output treesize:1358 [2018-11-18 13:54:43,618 WARN L180 SmtUtils]: Spent 17.72 s on a formula simplification that was a NOOP. DAG size: 155 [2018-11-18 13:55:22,663 WARN L180 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 91 DAG size of output: 60 [2018-11-18 13:55:22,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1239 treesize of output 773 [2018-11-18 13:55:23,616 WARN L180 SmtUtils]: Spent 904.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-11-18 13:55:23,618 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 13:55:23,618 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:23,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 552 treesize of output 507 [2018-11-18 13:55:23,632 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:23,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 504 treesize of output 462 [2018-11-18 13:55:23,645 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:23,698 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:23,787 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:24,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 457 treesize of output 348 [2018-11-18 13:55:25,705 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 122 [2018-11-18 13:55:25,715 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:25,941 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 256 treesize of output 276 [2018-11-18 13:55:25,942 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 13:55:25,944 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 13:55:25,944 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:26,465 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,465 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,466 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 241 treesize of output 174 [2018-11-18 13:55:26,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2018-11-18 13:55:26,517 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-18 13:55:26,517 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:26,530 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:26,586 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,586 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,586 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 115 [2018-11-18 13:55:26,731 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-18 13:55:26,736 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:55:26,737 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:26,801 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:26,802 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,802 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,802 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,803 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,803 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,803 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,844 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 115 [2018-11-18 13:55:26,851 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 13:55:26,856 INFO L477 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 24 treesize of output 24 [2018-11-18 13:55:26,856 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:26,870 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:26,924 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,924 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,924 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,925 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,925 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,925 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,937 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 74 [2018-11-18 13:55:26,943 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 10 [2018-11-18 13:55:26,944 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:26,973 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:26,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-18 13:55:26,973 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:26,989 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:26,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 13:55:26,990 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:26,996 INFO L267 ElimStorePlain]: Start of recursive call 17: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,000 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,004 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,013 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,022 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,022 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,023 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 241 treesize of output 174 [2018-11-18 13:55:27,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2018-11-18 13:55:27,078 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-18 13:55:27,078 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,094 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,153 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,154 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,154 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 113 [2018-11-18 13:55:27,277 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:55:27,277 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,347 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:27,347 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,348 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,348 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,348 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,349 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,349 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,388 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 92 [2018-11-18 13:55:27,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 13:55:27,403 INFO L477 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 24 treesize of output 24 [2018-11-18 13:55:27,403 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,418 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,469 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,469 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,469 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,470 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,470 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,470 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,483 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 72 [2018-11-18 13:55:27,502 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:27,516 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2018-11-18 13:55:27,516 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 13:55:27,552 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 10 [2018-11-18 13:55:27,553 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,569 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,570 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-18 13:55:27,570 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,577 INFO L267 ElimStorePlain]: Start of recursive call 29: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,582 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,587 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,597 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,607 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,607 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,607 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 186 [2018-11-18 13:55:27,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2018-11-18 13:55:27,654 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-18 13:55:27,654 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,667 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,709 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,709 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,710 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 131 [2018-11-18 13:55:27,836 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2018-11-18 13:55:27,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:55:27,842 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,913 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,913 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,914 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,915 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:27,916 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,916 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,916 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,947 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:27,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 110 [2018-11-18 13:55:27,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 13:55:27,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 13:55:27,963 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:27,976 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:28,024 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,025 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,025 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,025 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,026 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,026 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,039 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 86 [2018-11-18 13:55:28,059 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 14 [2018-11-18 13:55:28,060 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:28,095 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-18 13:55:28,096 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:28,111 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:28,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-18 13:55:28,112 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:28,118 INFO L267 ElimStorePlain]: Start of recursive call 41: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:28,125 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:28,132 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:28,139 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:28,280 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,280 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,281 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 252 treesize of output 198 [2018-11-18 13:55:28,502 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,502 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,567 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:28,597 INFO L303 Elim1Store]: Index analysis took 104 ms [2018-11-18 13:55:28,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 183 treesize of output 231 [2018-11-18 13:55:28,706 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,707 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,709 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:28,709 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:28,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 254 [2018-11-18 13:55:28,711 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:29,246 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,250 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,250 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,250 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,251 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,259 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,261 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:29,261 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 194 treesize of output 246 [2018-11-18 13:55:29,269 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:29,844 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,844 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,844 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,846 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:29,846 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:29,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 167 [2018-11-18 13:55:29,847 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:30,070 INFO L267 ElimStorePlain]: Start of recursive call 46: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 13:55:30,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 182 [2018-11-18 13:55:31,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-18 13:55:31,000 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:31,056 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:31,741 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:31,741 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:31,741 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:31,756 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 131 [2018-11-18 13:55:31,959 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-11-18 13:55:31,964 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:55:31,965 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:32,029 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,030 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,032 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:32,033 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,033 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,033 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,033 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,043 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,052 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 145 [2018-11-18 13:55:32,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 32 [2018-11-18 13:55:32,083 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2018-11-18 13:55:32,084 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:32,101 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:32,155 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,155 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,155 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,156 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,156 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,156 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,161 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,164 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 105 [2018-11-18 13:55:32,180 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,180 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,181 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,181 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,189 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,207 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 57 [2018-11-18 13:55:32,208 INFO L267 ElimStorePlain]: Start of recursive call 58: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 13:55:32,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:55:32,280 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:32,302 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-18 13:55:32,303 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:32,325 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 16 [2018-11-18 13:55:32,333 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 2 xjuncts. [2018-11-18 13:55:32,355 INFO L267 ElimStorePlain]: Start of recursive call 57: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:55:32,381 INFO L267 ElimStorePlain]: Start of recursive call 54: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:55:32,412 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:55:32,417 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,417 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,418 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,433 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 133 [2018-11-18 13:55:32,561 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-11-18 13:55:32,567 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:55:32,567 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:32,649 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,650 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,651 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:32,652 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,652 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,652 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,653 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,663 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 142 [2018-11-18 13:55:32,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 13:55:32,704 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 31 [2018-11-18 13:55:32,705 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:32,721 INFO L267 ElimStorePlain]: Start of recursive call 65: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:32,783 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,783 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,784 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,784 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,784 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,785 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,789 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,803 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 108 [2018-11-18 13:55:32,810 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,815 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,823 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2018-11-18 13:55:32,824 INFO L267 ElimStorePlain]: Start of recursive call 68: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 13:55:32,872 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,873 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:32,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 10 [2018-11-18 13:55:32,875 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:32,900 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,900 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,901 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,901 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,904 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,904 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,905 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:32,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 40 [2018-11-18 13:55:32,915 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 2 xjuncts. [2018-11-18 13:55:32,961 INFO L267 ElimStorePlain]: Start of recursive call 67: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:55:32,987 INFO L267 ElimStorePlain]: Start of recursive call 64: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:55:33,019 INFO L267 ElimStorePlain]: Start of recursive call 62: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 13:55:33,024 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,024 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,024 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 127 [2018-11-18 13:55:33,212 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-11-18 13:55:33,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 13:55:33,217 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:33,273 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,274 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,275 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:33,276 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,276 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,276 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,277 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,286 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,292 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,303 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 146 [2018-11-18 13:55:33,314 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-11-18 13:55:33,323 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2018-11-18 13:55:33,324 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:33,342 INFO L267 ElimStorePlain]: Start of recursive call 74: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:33,385 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,386 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,386 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,386 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,387 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,387 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,391 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,394 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,398 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,400 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 100 [2018-11-18 13:55:33,407 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,408 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,408 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,409 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,418 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,441 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 57 [2018-11-18 13:55:33,442 INFO L267 ElimStorePlain]: Start of recursive call 77: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 13:55:33,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-18 13:55:33,515 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:33,535 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-18 13:55:33,536 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:33,551 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-18 13:55:33,552 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:33,560 INFO L267 ElimStorePlain]: Start of recursive call 76: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:33,568 INFO L267 ElimStorePlain]: Start of recursive call 73: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:33,581 INFO L267 ElimStorePlain]: Start of recursive call 71: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:33,936 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,937 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:33,938 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:34,242 INFO L303 Elim1Store]: Index analysis took 375 ms [2018-11-18 13:55:34,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 178 treesize of output 143 [2018-11-18 13:55:36,049 WARN L180 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 160 [2018-11-18 13:55:36,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 130 [2018-11-18 13:55:36,055 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:36,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 113 [2018-11-18 13:55:36,064 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:37,333 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:37,451 INFO L303 Elim1Store]: Index analysis took 124 ms [2018-11-18 13:55:37,640 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 12 case distinctions, treesize of input 97 treesize of output 175 [2018-11-18 13:55:37,640 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-18 13:55:37,645 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 13:55:37,645 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:39,752 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:39,760 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:39,767 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:39,812 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 134 treesize of output 167 [2018-11-18 13:55:39,813 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 4 xjuncts. [2018-11-18 13:55:41,068 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:41,068 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:41,073 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:41,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 128 [2018-11-18 13:55:41,074 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:42,989 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:42,990 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:42,994 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:42,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 126 [2018-11-18 13:55:42,995 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:43,886 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:43,888 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:43,894 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:43,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 110 [2018-11-18 13:55:43,895 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:46,455 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:46,456 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:46,458 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:46,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 110 [2018-11-18 13:55:46,461 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:48,716 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:48,717 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:48,722 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:48,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 130 [2018-11-18 13:55:48,723 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:50,499 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:50,501 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:50,506 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:50,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 114 [2018-11-18 13:55:50,508 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:51,475 INFO L267 ElimStorePlain]: Start of recursive call 84: 16 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-18 13:55:53,351 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,363 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 13:55:53,375 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,376 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,376 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,376 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,377 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,390 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,496 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,517 INFO L303 Elim1Store]: Index analysis took 170 ms [2018-11-18 13:55:53,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 121 treesize of output 132 [2018-11-18 13:55:53,555 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 13:55:53,571 INFO L477 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 24 treesize of output 24 [2018-11-18 13:55:53,571 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:53,592 INFO L267 ElimStorePlain]: Start of recursive call 94: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 13:55:53,756 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,756 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,757 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,757 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,757 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,757 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,831 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,851 INFO L303 Elim1Store]: Index analysis took 110 ms [2018-11-18 13:55:53,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 107 [2018-11-18 13:55:53,902 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:53,925 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 86 [2018-11-18 13:55:53,926 INFO L267 ElimStorePlain]: Start of recursive call 97: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 13:55:54,351 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:54,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2018-11-18 13:55:54,352 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:54,526 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:54,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 45 [2018-11-18 13:55:54,527 INFO L267 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2018-11-18 13:55:54,707 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:54,707 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 13:55:54,931 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 13:55:54,932 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_348 term size 35 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.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:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 13:55:54,934 INFO L168 Benchmark]: Toolchain (without parser) took 480840.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -117.4 MB). Peak memory consumption was 388.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:54,935 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:55:54,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:54,935 INFO L168 Benchmark]: Boogie Preprocessor took 59.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:54,935 INFO L168 Benchmark]: RCFGBuilder took 611.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:54,935 INFO L168 Benchmark]: TraceAbstraction took 479744.26 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -34.5 MB). Peak memory consumption was 341.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:55:54,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 421.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 611.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 479744.26 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -34.5 MB). Peak memory consumption was 341.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_348 term size 35 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_348 term size 35: 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...