./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-simple/sll2c_prepend_equal_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_prepend_equal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash debc7603f8b66e45e837485abad9ef70b7e9b8f4 ...................................................................................................................................................................................................................................................................................................................................................................................................................... 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_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_prepend_equal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash debc7603f8b66e45e837485abad9ef70b7e9b8f4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_33 term size 22 --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:16:18,958 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:16:18,959 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:16:18,965 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:16:18,965 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:16:18,966 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:16:18,967 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:16:18,968 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:16:18,969 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:16:18,970 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:16:18,970 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:16:18,970 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:16:18,971 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:16:18,972 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:16:18,972 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:16:18,972 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:16:18,973 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:16:18,974 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:16:18,975 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:16:18,976 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:16:18,977 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:16:18,977 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:16:18,979 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:16:18,979 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:16:18,979 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:16:18,980 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:16:18,980 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:16:18,980 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:16:18,981 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:16:18,982 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:16:18,982 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:16:18,982 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:16:18,983 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:16:18,983 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:16:18,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:16:18,984 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:16:18,984 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 06:16:18,992 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:16:18,992 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:16:18,992 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:16:18,992 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 06:16:18,993 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 06:16:18,993 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 06:16:18,993 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 06:16:18,993 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 06:16:18,993 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 06:16:18,993 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 06:16:18,993 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 06:16:18,994 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:16:18,994 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:16:18,994 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:16:18,994 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:16:18,994 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:16:18,995 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:16:18,995 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:16:18,995 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:16:18,995 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:16:18,995 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:16:18,995 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:16:18,995 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:16:18,996 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:16:18,996 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:16:18,996 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:16:18,996 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:16:18,996 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:16:18,996 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:16:18,996 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:16:18,997 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 06:16:18,997 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:16:18,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 06:16:18,997 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 06:16:18,997 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> debc7603f8b66e45e837485abad9ef70b7e9b8f4 [2018-11-10 06:16:19,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:16:19,030 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:16:19,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:16:19,034 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:16:19,034 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:16:19,034 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/../../sv-benchmarks/c/list-simple/sll2c_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 06:16:19,073 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/data/160ef840a/dde1eb391910413ab2209a2248be458b/FLAG571543ac7 [2018-11-10 06:16:19,502 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:16:19,502 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/sv-benchmarks/c/list-simple/sll2c_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 06:16:19,511 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/data/160ef840a/dde1eb391910413ab2209a2248be458b/FLAG571543ac7 [2018-11-10 06:16:19,519 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/data/160ef840a/dde1eb391910413ab2209a2248be458b [2018-11-10 06:16:19,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:16:19,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:16:19,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:16:19,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:16:19,526 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:16:19,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e44d2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19, skipping insertion in model container [2018-11-10 06:16:19,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:16:19,560 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:16:19,747 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:16:19,755 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:16:19,789 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:16:19,860 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:16:19,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19 WrapperNode [2018-11-10 06:16:19,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:16:19,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:16:19,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:16:19,861 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:16:19,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:16:19,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:16:19,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:16:19,899 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:16:19,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (1/1) ... [2018-11-10 06:16:19,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:16:19,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:16:19,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:16:19,921 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:16:19,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:16:19,959 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 06:16:19,959 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-10 06:16:19,959 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-11-10 06:16:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-11-10 06:16:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:16:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:16:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:16:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:16:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2018-11-10 06:16:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2018-11-10 06:16:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2018-11-10 06:16:19,961 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2018-11-10 06:16:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_prepend [2018-11-10 06:16:19,961 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_prepend [2018-11-10 06:16:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:16:19,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:16:20,311 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:16:20,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:20 BoogieIcfgContainer [2018-11-10 06:16:20,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:16:20,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:16:20,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:16:20,317 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:16:20,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:16:19" (1/3) ... [2018-11-10 06:16:20,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1239b72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:20, skipping insertion in model container [2018-11-10 06:16:20,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:19" (2/3) ... [2018-11-10 06:16:20,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1239b72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:20, skipping insertion in model container [2018-11-10 06:16:20,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:20" (3/3) ... [2018-11-10 06:16:20,321 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 06:16:20,327 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:16:20,333 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 06:16:20,344 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 06:16:20,367 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:16:20,367 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 06:16:20,367 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:16:20,367 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:16:20,367 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:16:20,368 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:16:20,368 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:16:20,368 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:16:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-11-10 06:16:20,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 06:16:20,385 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:20,386 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] [2018-11-10 06:16:20,389 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:20,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:20,394 INFO L82 PathProgramCache]: Analyzing trace with hash -32194737, now seen corresponding path program 1 times [2018-11-10 06:16:20,395 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:16:20,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:20,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:20,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:20,435 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:16:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:20,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-10 06:16:20,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:20,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:16:20,543 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:16:20,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 06:16:20,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 06:16:20,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:16:20,556 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-11-10 06:16:20,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:20,575 INFO L93 Difference]: Finished difference Result 102 states and 126 transitions. [2018-11-10 06:16:20,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 06:16:20,576 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 36 [2018-11-10 06:16:20,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:20,582 INFO L225 Difference]: With dead ends: 102 [2018-11-10 06:16:20,582 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 06:16:20,585 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:16:20,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 06:16:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-10 06:16:20,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-10 06:16:20,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2018-11-10 06:16:20,612 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 36 [2018-11-10 06:16:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:20,614 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2018-11-10 06:16:20,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 06:16:20,614 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2018-11-10 06:16:20,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 06:16:20,616 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:20,616 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] [2018-11-10 06:16:20,616 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:20,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:20,617 INFO L82 PathProgramCache]: Analyzing trace with hash 451533931, now seen corresponding path program 1 times [2018-11-10 06:16:20,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:16:20,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:20,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:20,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:20,619 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:16:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:20,711 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-10 06:16:20,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:20,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 06:16:20,711 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:16:20,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 06:16:20,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 06:16:20,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 06:16:20,713 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 5 states. [2018-11-10 06:16:20,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:20,757 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2018-11-10 06:16:20,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 06:16:20,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-11-10 06:16:20,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:20,759 INFO L225 Difference]: With dead ends: 74 [2018-11-10 06:16:20,759 INFO L226 Difference]: Without dead ends: 46 [2018-11-10 06:16:20,759 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 06:16:20,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-10 06:16:20,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-11-10 06:16:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 06:16:20,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2018-11-10 06:16:20,765 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 37 [2018-11-10 06:16:20,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:20,766 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2018-11-10 06:16:20,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 06:16:20,766 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2018-11-10 06:16:20,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-10 06:16:20,767 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:20,767 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:16:20,767 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:20,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:20,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1874860434, now seen corresponding path program 1 times [2018-11-10 06:16:20,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:16:20,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:20,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:20,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:20,769 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:16:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:21,426 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 06:16:21,427 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:16:21,427 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 06:16:21,427 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 47 with the following transitions: [2018-11-10 06:16:21,429 INFO L202 CegarAbsIntRunner]: [4], [5], [6], [8], [11], [30], [31], [33], [37], [41], [43], [45], [49], [50], [54], [56], [58], [62], [65], [85], [110], [116], [118], [119], [120], [121], [122], [123], [124], [125], [126], [127], [128], [130], [131], [132], [133] [2018-11-10 06:16:21,467 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 06:16:21,467 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 06:16:21,811 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 06:16:21,812 INFO L272 AbstractInterpreter]: Visited 37 different actions 48 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 48 variables. [2018-11-10 06:16:21,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:21,826 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 06:16:21,826 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:16:21,826 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:16:21,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:21,851 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 06:16:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:21,915 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:21,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 06:16:21,941 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:21,945 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:21,946 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 06:16:22,201 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:22,201 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:22,202 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:22,203 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 25 treesize of output 42 [2018-11-10 06:16:22,210 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 30 treesize of output 34 [2018-11-10 06:16:22,211 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:22,220 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:22,238 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 06:16:22,238 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:32 [2018-11-10 06:16:22,349 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 11 treesize of output 8 [2018-11-10 06:16:22,351 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:16:22,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:22,354 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:22,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 06:16:22,362 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:48 [2018-11-10 06:16:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 06:16:22,553 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:16:25,035 WARN L832 $PredicateComparison]: unable to prove that (forall ((|v_node_create_write~$Pointer$_#value.base_11| Int) (v_sll_circular_prepend_~head.base_BEFORE_CALL_2 Int) (v_sll_circular_prepend_~head.offset_BEFORE_CALL_2 Int) (|v_node_create_write~$Pointer$_#ptr.offset_11| Int)) (or (not (= (select (select (store |c_#memory_$Pointer$.base| c_node_create_~temp~0.base (store (select |c_#memory_$Pointer$.base| c_node_create_~temp~0.base) |v_node_create_write~$Pointer$_#ptr.offset_11| |v_node_create_write~$Pointer$_#value.base_11|)) v_sll_circular_prepend_~head.base_BEFORE_CALL_2) v_sll_circular_prepend_~head.offset_BEFORE_CALL_2) 0)) (exists ((|v_node_create_write~$Pointer$_#ptr.offset_10| Int) (|v_node_create_write~$Pointer$_#value.base_10| Int) (v_node_create_~temp~0.base_11 Int)) (and (= 0 (select (select (store |c_old(#memory_$Pointer$.base)| v_node_create_~temp~0.base_11 (store (select |c_old(#memory_$Pointer$.base)| v_node_create_~temp~0.base_11) |v_node_create_write~$Pointer$_#ptr.offset_10| |v_node_create_write~$Pointer$_#value.base_10|)) v_sll_circular_prepend_~head.base_BEFORE_CALL_2) v_sll_circular_prepend_~head.offset_BEFORE_CALL_2)) (= (select |c_old(#valid)| v_node_create_~temp~0.base_11) 0))))) is different from false [2018-11-10 06:16:29,261 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-10 06:16:29,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 06:16:29,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:29,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-10 06:16:29,303 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 13 treesize of output 4 [2018-11-10 06:16:29,303 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:29,307 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:29,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-10 06:16:29,310 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 13 treesize of output 4 [2018-11-10 06:16:29,310 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:29,313 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:29,314 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 21 treesize of output 19 [2018-11-10 06:16:29,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-10 06:16:29,316 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:29,320 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:29,331 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 06:16:29,342 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-10 06:16:29,343 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:39, output treesize:32 [2018-11-10 06:16:29,548 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-10 06:16:31,717 WARN L179 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 50 [2018-11-10 06:16:31,720 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-10 06:16:31,726 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-10 06:16:33,904 WARN L179 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 50 [2018-11-10 06:16:33,906 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-10 06:16:33,910 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-10 06:16:33,914 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-10 06:16:36,097 WARN L179 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 50 [2018-11-10 06:16:36,234 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 32 [2018-11-10 06:16:36,394 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6242 conjuctions. This might take some time... [2018-11-10 06:16:36,450 INFO L193 XnfTransformerHelper]: Simplified to disjunction of 12 conjuctions. [2018-11-10 06:16:36,455 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-10 06:16:36,705 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:16:36,706 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 19361 column 11: unknown constant v_prenex_11 at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:221) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:114) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.assertTerm(ManagedScript.java:136) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.IncrementalPlicationChecker.checkPlication(IncrementalPlicationChecker.java:120) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.checkEqualityStatus(Elim1Store.java:667) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.analyzeIndexEqualities(Elim1Store.java:759) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:300) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 06:16:36,708 INFO L168 Benchmark]: Toolchain (without parser) took 17186.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 957.6 MB in the beginning and 876.4 MB in the end (delta: 81.2 MB). Peak memory consumption was 267.3 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,709 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:16:36,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,710 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.44 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,710 INFO L168 Benchmark]: Boogie Preprocessor took 21.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:16:36,711 INFO L168 Benchmark]: RCFGBuilder took 391.38 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: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,711 INFO L168 Benchmark]: TraceAbstraction took 16394.79 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.1 GB in the beginning and 876.4 MB in the end (delta: 209.8 MB). Peak memory consumption was 266.4 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:36,714 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 391.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16394.79 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.1 GB in the beginning and 876.4 MB in the end (delta: 209.8 MB). Peak memory consumption was 266.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 19361 column 11: unknown constant v_prenex_11 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 19361 column 11: unknown constant v_prenex_11: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:16:38,152 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:16:38,153 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:16:38,162 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:16:38,162 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:16:38,163 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:16:38,164 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:16:38,165 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:16:38,166 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:16:38,167 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:16:38,167 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:16:38,168 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:16:38,169 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:16:38,169 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:16:38,170 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:16:38,171 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:16:38,171 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:16:38,172 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:16:38,174 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:16:38,175 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:16:38,176 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:16:38,177 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:16:38,179 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:16:38,179 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:16:38,179 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:16:38,180 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:16:38,181 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:16:38,182 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:16:38,182 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:16:38,183 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:16:38,183 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:16:38,184 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:16:38,184 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:16:38,184 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:16:38,185 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:16:38,186 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:16:38,186 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 06:16:38,197 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:16:38,197 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:16:38,198 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:16:38,198 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 06:16:38,198 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 06:16:38,198 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 06:16:38,198 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 06:16:38,198 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 06:16:38,199 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:16:38,199 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:16:38,199 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:16:38,199 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:16:38,199 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:16:38,199 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:16:38,200 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:16:38,200 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 06:16:38,200 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 06:16:38,200 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:16:38,200 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:16:38,200 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:16:38,200 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:16:38,202 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:16:38,203 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:16:38,203 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:16:38,203 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:16:38,203 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:16:38,203 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:16:38,203 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:16:38,203 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 06:16:38,204 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:16:38,204 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 06:16:38,204 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 06:16:38,204 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_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> debc7603f8b66e45e837485abad9ef70b7e9b8f4 [2018-11-10 06:16:38,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:16:38,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:16:38,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:16:38,249 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:16:38,250 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:16:38,250 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/../../sv-benchmarks/c/list-simple/sll2c_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 06:16:38,293 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/data/785fe46b3/29ec1a5b59ad4950b6b6ce8445a7edf3/FLAGc44457f51 [2018-11-10 06:16:38,653 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:16:38,654 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/sv-benchmarks/c/list-simple/sll2c_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 06:16:38,663 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/data/785fe46b3/29ec1a5b59ad4950b6b6ce8445a7edf3/FLAGc44457f51 [2018-11-10 06:16:38,671 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/data/785fe46b3/29ec1a5b59ad4950b6b6ce8445a7edf3 [2018-11-10 06:16:38,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:16:38,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:16:38,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:16:38,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:16:38,678 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:16:38,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:38,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd7687a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38, skipping insertion in model container [2018-11-10 06:16:38,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:38,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:16:38,714 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:16:38,918 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:16:38,928 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:16:38,965 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:16:38,993 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:16:38,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38 WrapperNode [2018-11-10 06:16:38,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:16:38,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:16:38,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:16:38,995 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:16:39,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:39,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:39,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:16:39,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:16:39,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:16:39,071 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:16:39,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:39,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:39,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:39,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:39,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:39,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:39,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (1/1) ... [2018-11-10 06:16:39,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:16:39,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:16:39,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:16:39,094 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:16:39,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:16:39,131 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 06:16:39,131 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-10 06:16:39,131 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-11-10 06:16:39,131 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-11-10 06:16:39,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:16:39,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:16:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:16:39,132 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:16:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2018-11-10 06:16:39,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2018-11-10 06:16:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2018-11-10 06:16:39,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2018-11-10 06:16:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_prepend [2018-11-10 06:16:39,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_prepend [2018-11-10 06:16:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:16:39,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:16:39,472 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:16:39,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:39 BoogieIcfgContainer [2018-11-10 06:16:39,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:16:39,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:16:39,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:16:39,475 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:16:39,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:16:38" (1/3) ... [2018-11-10 06:16:39,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c1da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:39, skipping insertion in model container [2018-11-10 06:16:39,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:38" (2/3) ... [2018-11-10 06:16:39,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c1da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:39, skipping insertion in model container [2018-11-10 06:16:39,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:39" (3/3) ... [2018-11-10 06:16:39,477 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2c_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 06:16:39,483 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:16:39,488 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 06:16:39,497 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 06:16:39,516 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 06:16:39,517 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:16:39,517 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 06:16:39,517 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:16:39,517 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:16:39,517 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:16:39,518 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:16:39,518 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:16:39,518 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:16:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-11-10 06:16:39,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 06:16:39,534 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:39,535 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] [2018-11-10 06:16:39,537 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:39,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:39,541 INFO L82 PathProgramCache]: Analyzing trace with hash -32194737, now seen corresponding path program 1 times [2018-11-10 06:16:39,545 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 06:16:39,545 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 06:16:39,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:39,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:39,663 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:39,663 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:39,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:39,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:16:39,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 06:16:39,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 06:16:39,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:16:39,679 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-11-10 06:16:39,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:39,696 INFO L93 Difference]: Finished difference Result 102 states and 126 transitions. [2018-11-10 06:16:39,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 06:16:39,697 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 36 [2018-11-10 06:16:39,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:39,703 INFO L225 Difference]: With dead ends: 102 [2018-11-10 06:16:39,703 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 06:16:39,706 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:16:39,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 06:16:39,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-10 06:16:39,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-10 06:16:39,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2018-11-10 06:16:39,733 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 36 [2018-11-10 06:16:39,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:39,735 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2018-11-10 06:16:39,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 06:16:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2018-11-10 06:16:39,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-10 06:16:39,737 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:39,737 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] [2018-11-10 06:16:39,737 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:39,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:39,737 INFO L82 PathProgramCache]: Analyzing trace with hash 451533931, now seen corresponding path program 1 times [2018-11-10 06:16:39,738 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 06:16:39,738 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 06:16:39,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:39,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:39,897 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:39,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:16:39,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 06:16:39,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 06:16:39,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 06:16:39,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 06:16:39,902 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 5 states. [2018-11-10 06:16:39,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:39,966 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2018-11-10 06:16:39,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 06:16:39,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-11-10 06:16:39,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:39,967 INFO L225 Difference]: With dead ends: 74 [2018-11-10 06:16:39,967 INFO L226 Difference]: Without dead ends: 46 [2018-11-10 06:16:39,968 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 06:16:39,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-10 06:16:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-11-10 06:16:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 06:16:39,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2018-11-10 06:16:39,975 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 37 [2018-11-10 06:16:39,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:39,975 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2018-11-10 06:16:39,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 06:16:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2018-11-10 06:16:39,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-10 06:16:39,976 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:39,976 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:16:39,977 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:39,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:39,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1874860434, now seen corresponding path program 1 times [2018-11-10 06:16:39,978 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 06:16:39,978 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 06:16:39,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:40,274 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:40,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 06:16:40,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:16:40,362 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,365 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,376 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,376 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:17 [2018-11-10 06:16:40,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 06:16:40,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 06:16:40,486 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,488 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 06:16:40,497 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:24 [2018-11-10 06:16:40,658 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 06:16:40,661 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 [2018-11-10 06:16:40,661 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,664 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 06:16:40,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:16:40,699 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,703 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,721 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-10 06:16:40,722 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:45, output treesize:37 [2018-11-10 06:16:40,820 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 8 treesize of output 6 [2018-11-10 06:16:40,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2018-11-10 06:16:40,823 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,825 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,847 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:53, output treesize:30 [2018-11-10 06:16:40,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 06:16:40,900 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 06:16:40,901 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,903 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 06:16:40,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 06:16:40,918 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,922 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,930 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:41, output treesize:16 [2018-11-10 06:16:40,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 06:16:40,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 06:16:40,975 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,978 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,981 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:40,981 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2018-11-10 06:16:41,018 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 06:16:41,018 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:16:41,981 WARN L179 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-11-10 06:16:42,094 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-10 06:16:42,280 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-11-10 06:16:42,460 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2018-11-10 06:16:42,543 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 33 treesize of output 19 [2018-11-10 06:16:42,547 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 19 treesize of output 3 [2018-11-10 06:16:42,557 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:42,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:42,593 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 15 treesize of output 17 [2018-11-10 06:16:42,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 06:16:42,597 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:42,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2018-11-10 06:16:42,616 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 9 treesize of output 7 [2018-11-10 06:16:42,616 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:42,628 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 12 treesize of output 7 [2018-11-10 06:16:42,629 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:42,634 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 06:16:42,639 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 06:16:42,658 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-11-10 06:16:42,658 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:58, output treesize:41 [2018-11-10 06:16:42,745 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:16:42,746 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:16:42,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:42,809 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:42,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 06:16:42,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 06:16:42,920 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:42,922 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:42,926 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:42,926 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-10 06:16:43,108 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 27 treesize of output 20 [2018-11-10 06:16:43,113 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:16:43,113 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 31 [2018-11-10 06:16:43,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-10 06:16:43,203 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,256 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,269 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,297 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 27 treesize of output 20 [2018-11-10 06:16:43,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:16:43,300 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,327 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 31 [2018-11-10 06:16:43,331 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-10 06:16:43,331 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,370 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,376 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,388 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 06:16:43,388 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:62, output treesize:37 [2018-11-10 06:16:43,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2018-11-10 06:16:43,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 06:16:43,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,549 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2018-11-10 06:16:43,571 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 19 [2018-11-10 06:16:43,572 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,593 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 19 treesize of output 12 [2018-11-10 06:16:43,593 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,608 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 7 [2018-11-10 06:16:43,608 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,615 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,619 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,619 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:51, output treesize:11 [2018-11-10 06:16:43,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 06:16:43,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 06:16:43,678 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,679 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,681 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:43,681 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-10 06:16:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-10 06:16:43,685 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:16:43,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 06:16:43,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [20] total 30 [2018-11-10 06:16:43,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-11-10 06:16:43,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-11-10 06:16:43,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=968, Unknown=2, NotChecked=0, Total=1056 [2018-11-10 06:16:43,704 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand 30 states. [2018-11-10 06:16:46,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:46,131 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2018-11-10 06:16:46,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-10 06:16:46,132 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 46 [2018-11-10 06:16:46,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:46,133 INFO L225 Difference]: With dead ends: 60 [2018-11-10 06:16:46,133 INFO L226 Difference]: Without dead ends: 58 [2018-11-10 06:16:46,134 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=157, Invalid=1733, Unknown=2, NotChecked=0, Total=1892 [2018-11-10 06:16:46,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-10 06:16:46,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2018-11-10 06:16:46,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-10 06:16:46,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2018-11-10 06:16:46,140 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 46 [2018-11-10 06:16:46,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:46,140 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2018-11-10 06:16:46,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-11-10 06:16:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2018-11-10 06:16:46,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-10 06:16:46,141 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:46,141 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:16:46,141 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:46,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:46,142 INFO L82 PathProgramCache]: Analyzing trace with hash -2081053043, now seen corresponding path program 1 times [2018-11-10 06:16:46,142 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 06:16:46,142 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 06:16:46,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:46,389 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:46,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 06:16:46,393 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:46,397 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:46,397 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 06:16:46,409 WARN L854 $PredicateComparison]: unable to prove that (exists ((|node_create_#Ultimate.alloc_#res.base| (_ BitVec 32))) (and (= (select |c_old(#valid)| |node_create_#Ultimate.alloc_#res.base|) (_ bv0 1)) (= (store |c_old(#valid)| |node_create_#Ultimate.alloc_#res.base| (_ bv1 1)) |c_#valid|))) is different from true [2018-11-10 06:16:46,487 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:46,488 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:46,488 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 20 treesize of output 27 [2018-11-10 06:16:46,497 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 23 treesize of output 20 [2018-11-10 06:16:46,497 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:46,507 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:46,517 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 06:16:46,518 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:27 [2018-11-10 06:16:46,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 06:16:46,551 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 8 treesize of output 7 [2018-11-10 06:16:46,551 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:46,554 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:46,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 06:16:46,566 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:41 [2018-11-10 06:16:46,664 WARN L854 $PredicateComparison]: unable to prove that (exists ((|node_create_write~$Pointer$_#ptr.offset| (_ BitVec 32)) (|node_create_write~$Pointer$_#value.base| (_ BitVec 32)) (|node_create_write~$Pointer$_#ptr.base| (_ BitVec 32))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_write~$Pointer$_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |node_create_write~$Pointer$_#ptr.base|) |node_create_write~$Pointer$_#ptr.offset| |node_create_write~$Pointer$_#value.base|))) (= (_ bv0 1) (select |c_old(#valid)| |node_create_write~$Pointer$_#ptr.base|)))) is different from true [2018-11-10 06:16:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 12 not checked. [2018-11-10 06:16:46,846 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:16:47,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:16:47,171 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/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 [2018-11-10 06:16:47,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:47,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:47,252 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 06:16:47,252 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:47,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:47,253 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 06:16:47,578 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:47,585 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:47,586 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 22 treesize of output 29 [2018-11-10 06:16:47,591 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 25 treesize of output 20 [2018-11-10 06:16:47,592 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:47,599 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:47,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 06:16:47,608 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:24 [2018-11-10 06:16:47,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 06:16:47,668 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 8 treesize of output 7 [2018-11-10 06:16:47,668 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:47,671 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:47,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 06:16:47,683 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:38 [2018-11-10 06:16:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 4 not checked. [2018-11-10 06:16:47,761 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:16:48,072 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:16:48,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22] total 28 [2018-11-10 06:16:48,073 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-11-10 06:16:48,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-11-10 06:16:48,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=618, Unknown=20, NotChecked=102, Total=812 [2018-11-10 06:16:48,074 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 28 states. [2018-11-10 06:16:50,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:16:50,675 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2018-11-10 06:16:50,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-10 06:16:50,675 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 49 [2018-11-10 06:16:50,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:16:50,677 INFO L225 Difference]: With dead ends: 69 [2018-11-10 06:16:50,677 INFO L226 Difference]: Without dead ends: 59 [2018-11-10 06:16:50,678 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 83 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=822, Unknown=24, NotChecked=118, Total=1056 [2018-11-10 06:16:50,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-10 06:16:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2018-11-10 06:16:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-10 06:16:50,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2018-11-10 06:16:50,685 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 49 [2018-11-10 06:16:50,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:16:50,685 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2018-11-10 06:16:50,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-11-10 06:16:50,686 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2018-11-10 06:16:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-10 06:16:50,687 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:16:50,687 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:16:50,687 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:16:50,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:50,687 INFO L82 PathProgramCache]: Analyzing trace with hash -663608324, now seen corresponding path program 1 times [2018-11-10 06:16:50,688 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 06:16:50,688 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 06:16:50,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:50,981 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:50,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 06:16:50,985 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:50,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:50,997 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 06:16:51,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 06:16:51,110 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:16:51,110 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,112 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,120 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,121 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2018-11-10 06:16:51,152 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:51,158 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 45 treesize of output 49 [2018-11-10 06:16:51,160 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 12 treesize of output 11 [2018-11-10 06:16:51,161 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,180 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:48, output treesize:29 [2018-11-10 06:16:51,230 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:51,233 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:51,234 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 24 treesize of output 44 [2018-11-10 06:16:51,238 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 32 treesize of output 32 [2018-11-10 06:16:51,238 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,246 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,266 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:39, output treesize:38 [2018-11-10 06:16:51,314 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 06:16:51,317 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 8 treesize of output 7 [2018-11-10 06:16:51,317 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,321 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,350 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:16:51,353 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 31 treesize of output 41 [2018-11-10 06:16:51,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-10 06:16:51,357 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,365 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,381 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,382 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:63, output treesize:58 [2018-11-10 06:16:51,575 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 15 treesize of output 12 [2018-11-10 06:16:51,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-10 06:16:51,578 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,581 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:51,593 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:28 [2018-11-10 06:16:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 06:16:52,627 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:16:52,809 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2018-11-10 06:16:53,033 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-11-10 06:16:53,154 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-11-10 06:16:53,631 WARN L179 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2018-11-10 06:16:53,827 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-11-10 06:16:53,945 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-10 06:16:53,965 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 101 treesize of output 98 [2018-11-10 06:16:53,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 23 [2018-11-10 06:16:53,968 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:53,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:54,055 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 101 treesize of output 98 [2018-11-10 06:16:54,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 23 [2018-11-10 06:16:54,058 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:54,072 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:54,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 06:16:54,104 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:203, output treesize:149 [2018-11-10 06:16:54,445 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:16:54,446 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:16:54,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:54,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:54,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 06:16:54,519 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:16:54,523 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:16:54,523 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-10 06:16:54,646 WARN L854 $PredicateComparison]: unable to prove that (exists ((|node_create_write~intINTTYPE4_#ptr.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |node_create_write~intINTTYPE4_#ptr.base|)) (= |c_#valid| (store |c_old(#valid)| |node_create_write~intINTTYPE4_#ptr.base| (_ bv1 1))))) is different from true [2018-11-10 06:17:06,845 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:17:06,846 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:17:06,846 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:17:06,847 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 18 treesize of output 13 [2018-11-10 06:17:06,847 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:06,855 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:06,856 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:12 [2018-11-10 06:17:06,930 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 11 treesize of output 8 [2018-11-10 06:17:06,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:17:06,932 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:06,934 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:06,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:06,940 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:16 [2018-11-10 06:17:07,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 06:17:07,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 06:17:07,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:07,293 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:07,302 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:07,302 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-11-10 06:17:07,937 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 83 treesize of output 60 [2018-11-10 06:17:07,961 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:17:07,961 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:08,143 INFO L303 Elim1Store]: Index analysis took 105 ms [2018-11-10 06:17:08,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 66 [2018-11-10 06:17:08,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 54 [2018-11-10 06:17:08,174 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:08,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 57 [2018-11-10 06:17:08,877 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-10 06:17:09,843 INFO L303 Elim1Store]: Index analysis took 126 ms [2018-11-10 06:17:09,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 117 [2018-11-10 06:17:09,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2018-11-10 06:17:09,889 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:10,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 69 [2018-11-10 06:17:10,584 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-11-10 06:17:10,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 69 [2018-11-10 06:17:10,986 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-10 06:17:11,458 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 06:17:12,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 73 [2018-11-10 06:17:12,559 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2018-11-10 06:17:12,559 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:12,774 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 64 [2018-11-10 06:17:12,774 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-11-10 06:17:12,945 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 06:17:13,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 75 [2018-11-10 06:17:13,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 53 [2018-11-10 06:17:13,025 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:13,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 92 [2018-11-10 06:17:13,345 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 8 xjuncts. [2018-11-10 06:17:13,930 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-10 06:17:14,986 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-10 06:17:15,258 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-10 06:17:15,586 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 15 dim-0 vars, and 5 xjuncts. [2018-11-10 06:17:15,586 INFO L202 ElimStorePlain]: Needed 16 recursive calls to eliminate 7 variables, input treesize:174, output treesize:451 [2018-11-10 06:17:21,131 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-11-10 06:17:55,717 WARN L179 SmtUtils]: Spent 34.58 s on a formula simplification. DAG size of input: 175 DAG size of output: 91 [2018-11-10 06:17:55,721 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:17:55,727 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:17:55,728 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 82 [2018-11-10 06:17:55,794 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 21 [2018-11-10 06:17:55,798 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 14 treesize of output 7 [2018-11-10 06:17:55,799 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:55,804 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:55,826 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 19 treesize of output 20 [2018-11-10 06:17:55,829 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:17:55,829 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:55,836 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:55,849 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:58,233 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:17:58,245 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 104 treesize of output 84 [2018-11-10 06:17:58,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:17:58,249 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:58,289 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:17:58,296 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 06:17:58,297 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 58 treesize of output 46 [2018-11-10 06:17:58,300 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 35 treesize of output 23 [2018-11-10 06:17:58,301 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:58,320 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 26 treesize of output 25 [2018-11-10 06:17:58,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 7 [2018-11-10 06:17:58,324 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:58,331 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:58,339 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:58,354 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 77 [2018-11-10 06:17:59,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:17:59,044 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,109 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2018-11-10 06:17:59,115 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 30 treesize of output 23 [2018-11-10 06:17:59,116 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 06:17:59,193 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 3 case distinctions, treesize of input 26 treesize of output 46 [2018-11-10 06:17:59,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2018-11-10 06:17:59,198 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 29 [2018-11-10 06:17:59,265 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-10 06:17:59,295 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 06:17:59,323 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-10 06:17:59,371 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-10 06:17:59,379 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 92 treesize of output 66 [2018-11-10 06:17:59,385 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 15 treesize of output 15 [2018-11-10 06:17:59,385 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,416 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 35 treesize of output 28 [2018-11-10 06:17:59,422 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 14 treesize of output 7 [2018-11-10 06:17:59,422 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,433 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:17:59,440 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 19 treesize of output 20 [2018-11-10 06:17:59,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:17:59,443 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,456 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,466 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,492 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,659 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 06:17:59,659 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 20 variables, input treesize:520, output treesize:64 [2018-11-10 06:17:59,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 06:17:59,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 06:17:59,880 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,883 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,893 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-10 06:17:59,894 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 7 [2018-11-10 06:17:59,895 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,896 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,902 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:17:59,902 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:37, output treesize:11 [2018-11-10 06:18:00,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 06:18:00,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 06:18:00,109 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:18:00,110 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:18:00,111 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:18:00,111 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-10 06:18:00,280 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 6 not checked. [2018-11-10 06:18:00,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:18:04,104 WARN L179 SmtUtils]: Spent 2.92 s on a formula simplification that was a NOOP. DAG size: 118 [2018-11-10 06:18:05,023 WARN L179 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-11-10 06:18:05,975 WARN L179 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-11-10 06:18:07,297 WARN L179 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 70 [2018-11-10 06:18:07,483 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2018-11-10 06:18:07,491 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 177 treesize of output 91 [2018-11-10 06:18:07,499 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 91 treesize of output 3 [2018-11-10 06:18:07,499 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:18:07,515 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:18:07,573 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 87 treesize of output 65 [2018-11-10 06:18:07,577 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-10 06:18:07,577 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:18:07,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 74 [2018-11-10 06:18:07,793 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2018-11-10 06:18:07,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2018-11-10 06:18:07,796 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 06:18:07,871 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 49 [2018-11-10 06:18:07,872 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-10 06:18:07,953 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 38 [2018-11-10 06:18:07,954 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 6 treesize of output 4 [2018-11-10 06:18:07,955 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 06:18:07,963 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:18:07,965 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 44 treesize of output 40 [2018-11-10 06:18:07,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 8 [2018-11-10 06:18:07,973 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-11-10 06:18:07,985 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 06:18:08,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 45 [2018-11-10 06:18:08,053 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 33 treesize of output 27 [2018-11-10 06:18:08,054 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-10 06:18:08,090 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 36 treesize of output 32 [2018-11-10 06:18:08,090 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-11-10 06:18:08,135 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 06:18:08,161 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:18:08,168 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:18:08,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-11-10 06:18:08,207 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 9 variables, input treesize:185, output treesize:104 [2018-11-10 06:18:08,668 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 06:18:08,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 46 [2018-11-10 06:18:08,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-11-10 06:18:08,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-11-10 06:18:08,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=2225, Unknown=8, NotChecked=94, Total=2450 [2018-11-10 06:18:08,670 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand 46 states. [2018-11-10 06:18:27,966 WARN L179 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 27 [2018-11-10 06:18:30,243 WARN L179 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2018-11-10 06:18:40,781 WARN L179 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2018-11-10 06:18:42,369 WARN L179 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2018-11-10 06:18:44,157 WARN L179 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2018-11-10 06:18:57,056 WARN L179 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2018-11-10 06:19:02,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:19:02,557 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2018-11-10 06:19:02,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-10 06:19:02,561 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 50 [2018-11-10 06:19:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:19:02,563 INFO L225 Difference]: With dead ends: 93 [2018-11-10 06:19:02,563 INFO L226 Difference]: Without dead ends: 85 [2018-11-10 06:19:02,564 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 53.0s TimeCoverageRelationStatistics Valid=248, Invalid=4567, Unknown=19, NotChecked=136, Total=4970 [2018-11-10 06:19:02,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-11-10 06:19:02,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 73. [2018-11-10 06:19:02,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-10 06:19:02,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2018-11-10 06:19:02,574 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 50 [2018-11-10 06:19:02,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:19:02,574 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2018-11-10 06:19:02,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-11-10 06:19:02,575 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2018-11-10 06:19:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-10 06:19:02,576 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:19:02,576 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-11-10 06:19:02,576 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:19:02,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:19:02,576 INFO L82 PathProgramCache]: Analyzing trace with hash -439042648, now seen corresponding path program 1 times [2018-11-10 06:19:02,577 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 06:19:02,580 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 06:19:02,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:19:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:19:02,936 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:19:02,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 06:19:02,939 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:02,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:02,949 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-10 06:19:03,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 06:19:03,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:19:03,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,096 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,106 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,106 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:37, output treesize:33 [2018-11-10 06:19:03,143 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:03,149 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 54 treesize of output 58 [2018-11-10 06:19:03,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-10 06:19:03,153 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,169 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,181 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,181 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:57, output treesize:38 [2018-11-10 06:19:03,241 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:03,242 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:03,242 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:03,243 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 54 [2018-11-10 06:19:03,246 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 34 treesize of output 46 [2018-11-10 06:19:03,246 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,257 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,273 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:53, output treesize:52 [2018-11-10 06:19:03,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 8 [2018-11-10 06:19:03,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:19:03,336 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,339 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,363 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:03,365 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 39 treesize of output 49 [2018-11-10 06:19:03,368 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 18 treesize of output 16 [2018-11-10 06:19:03,368 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,378 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,406 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,407 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:75, output treesize:74 [2018-11-10 06:19:03,584 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 19 treesize of output 16 [2018-11-10 06:19:03,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-10 06:19:03,590 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,592 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 06:19:03,640 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 06:19:03,640 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,644 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,662 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:03,662 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:63, output treesize:40 [2018-11-10 06:19:05,173 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((|sll_circular_prepend_read~$Pointer$_#value.offset| (_ BitVec 32)) (|sll_circular_prepend_write~$Pointer$_#value.offset| (_ BitVec 32)) (|sll_circular_prepend_write~$Pointer$_#value.base| (_ BitVec 32)) (sll_circular_prepend_~new_head~1.base (_ BitVec 32)) (|sll_circular_prepend_read~$Pointer$_#value.base| (_ BitVec 32)) (|sll_circular_prepend_write~$Pointer$_#ptr.offset| (_ BitVec 32))) (let ((.cse7 (select |c_old(#memory_$Pointer$.offset)| sll_circular_prepend_~new_head~1.base))) (let ((.cse3 (select |c_old(#memory_$Pointer$.base)| sll_circular_prepend_~new_head~1.base)) (.cse4 (select (select (store |c_old(#memory_$Pointer$.offset)| sll_circular_prepend_~new_head~1.base (store .cse7 (_ bv0 32) (_ bv0 32))) |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset|))) (let ((.cse1 (select (let ((.cse8 (store |c_old(#memory_$Pointer$.base)| sll_circular_prepend_~new_head~1.base (store .cse3 (_ bv0 32) (_ bv0 32))))) (select .cse8 (select (select .cse8 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset|))) .cse4))) (and (= |c_sll_circular_prepend_#in~data| (select (select |c_#memory_int| sll_circular_prepend_~new_head~1.base) (_ bv4 32))) (= (let ((.cse0 (let ((.cse2 (store |c_old(#memory_$Pointer$.base)| sll_circular_prepend_~new_head~1.base (store .cse3 (_ bv0 32) |sll_circular_prepend_read~$Pointer$_#value.base|)))) (store .cse2 |c_sll_circular_prepend_#in~head.base| (store (select .cse2 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset| sll_circular_prepend_~new_head~1.base))))) (store .cse0 .cse1 (store (select .cse0 .cse1) |sll_circular_prepend_write~$Pointer$_#ptr.offset| |sll_circular_prepend_write~$Pointer$_#value.base|))) |c_#memory_$Pointer$.base|) (not (= .cse4 (_ bv0 32))) (= (let ((.cse5 (let ((.cse6 (store |c_old(#memory_$Pointer$.offset)| sll_circular_prepend_~new_head~1.base (store .cse7 (_ bv0 32) |sll_circular_prepend_read~$Pointer$_#value.offset|)))) (store .cse6 |c_sll_circular_prepend_#in~head.base| (store (select .cse6 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset| (_ bv0 32)))))) (store .cse5 .cse1 (store (select .cse5 .cse1) |sll_circular_prepend_write~$Pointer$_#ptr.offset| |sll_circular_prepend_write~$Pointer$_#value.offset|))) |c_#memory_$Pointer$.offset|) (= (_ bv0 1) (select |c_old(#valid)| sll_circular_prepend_~new_head~1.base))))))) (exists ((v_prenex_40 (_ BitVec 32)) (v_prenex_41 (_ BitVec 32)) (v_prenex_42 (_ BitVec 32)) (v_prenex_43 (_ BitVec 32)) (v_prenex_38 (_ BitVec 32)) (v_prenex_39 (_ BitVec 32))) (let ((.cse16 (select |c_old(#memory_$Pointer$.base)| v_prenex_39))) (let ((.cse17 (store |c_old(#memory_$Pointer$.base)| v_prenex_39 (store .cse16 (_ bv0 32) (_ bv0 32))))) (let ((.cse13 (select (select .cse17 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset|)) (.cse12 (select |c_old(#memory_$Pointer$.offset)| v_prenex_39))) (let ((.cse10 (select (select .cse17 .cse13) (select (select (store |c_old(#memory_$Pointer$.offset)| v_prenex_39 (store .cse12 (_ bv0 32) (_ bv0 32))) |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset|)))) (and (= (let ((.cse9 (let ((.cse11 (store |c_old(#memory_$Pointer$.offset)| v_prenex_39 (store .cse12 (_ bv0 32) v_prenex_40)))) (store .cse11 |c_sll_circular_prepend_#in~head.base| (store (select .cse11 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset| (_ bv0 32)))))) (store .cse9 .cse10 (store (select .cse9 .cse10) v_prenex_43 v_prenex_41))) |c_#memory_$Pointer$.offset|) (= |c_sll_circular_prepend_#in~data| (select (select |c_#memory_int| v_prenex_39) (_ bv4 32))) (not (= (_ bv0 32) .cse13)) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_39)) (= |c_#memory_$Pointer$.base| (let ((.cse14 (let ((.cse15 (store |c_old(#memory_$Pointer$.base)| v_prenex_39 (store .cse16 (_ bv0 32) v_prenex_42)))) (store .cse15 |c_sll_circular_prepend_#in~head.base| (store (select .cse15 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset| v_prenex_39))))) (store .cse14 .cse10 (store (select .cse14 .cse10) v_prenex_43 v_prenex_38))))))))))) is different from true [2018-11-10 06:19:14,016 WARN L179 SmtUtils]: Spent 8.83 s on a formula simplification. DAG size of input: 192 DAG size of output: 80 [2018-11-10 06:19:14,118 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:14,164 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:14,254 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:14,284 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:14,285 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 06:19:14,285 INFO L303 Elim1Store]: Index analysis took 268 ms [2018-11-10 06:19:14,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 61 [2018-11-10 06:19:14,286 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:15,507 INFO L303 Elim1Store]: Index analysis took 417 ms [2018-11-10 06:19:15,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 194 [2018-11-10 06:19:15,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2018-11-10 06:19:15,551 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:15,815 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 181 treesize of output 173 [2018-11-10 06:19:15,838 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 164 treesize of output 154 [2018-11-10 06:19:15,838 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:15,934 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:16,408 INFO L303 Elim1Store]: Index analysis took 236 ms [2018-11-10 06:19:16,409 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2018-11-10 06:19:16,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:19:16,421 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:16,649 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:16,661 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:16,868 INFO L303 Elim1Store]: Index analysis took 246 ms [2018-11-10 06:19:16,868 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 58 treesize of output 83 [2018-11-10 06:19:16,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 23 [2018-11-10 06:19:16,883 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:16,990 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:17,076 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:17,123 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:17,380 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,380 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 06:19:17,400 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,464 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,513 INFO L303 Elim1Store]: Index analysis took 146 ms [2018-11-10 06:19:17,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 154 [2018-11-10 06:19:17,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select 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 23 [2018-11-10 06:19:17,529 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:17,597 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,604 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,608 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,624 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 160 [2018-11-10 06:19:17,667 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 87 [2018-11-10 06:19:17,668 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-10 06:19:17,748 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,750 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,751 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,753 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,760 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 169 [2018-11-10 06:19:17,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 15 [2018-11-10 06:19:17,791 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:17,833 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:17,868 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:17,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:17,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 84 [2018-11-10 06:19:17,940 INFO L477 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 69 [2018-11-10 06:19:17,941 INFO L267 ElimStorePlain]: Start of recursive call 18: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-10 06:19:18,042 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 1 case distinctions, treesize of input 66 treesize of output 67 [2018-11-10 06:19:18,043 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-10 06:19:18,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 55 [2018-11-10 06:19:18,050 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:18,132 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 06:19:18,202 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 06:19:18,309 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 06:19:18,309 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 18 variables, input treesize:729, output treesize:151 [2018-11-10 06:19:18,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 06:19:18,487 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 [2018-11-10 06:19:18,487 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:18,491 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:18,521 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:18,522 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:19:18,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 55 [2018-11-10 06:19:18,538 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2018-11-10 06:19:18,539 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:18,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-11-10 06:19:18,550 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:18,556 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:18,567 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:18,567 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:86, output treesize:16 [2018-11-10 06:19:18,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 06:19:18,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 06:19:18,624 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:18,626 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:18,628 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:18,628 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2018-11-10 06:19:18,690 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 06:19:18,690 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:19:19,430 WARN L179 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2018-11-10 06:19:19,659 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-11-10 06:19:19,990 WARN L179 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2018-11-10 06:19:20,295 WARN L179 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-11-10 06:19:28,236 WARN L179 SmtUtils]: Spent 7.94 s on a formula simplification that was a NOOP. DAG size: 177 [2018-11-10 06:19:29,592 WARN L179 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 84 [2018-11-10 06:19:33,060 WARN L179 SmtUtils]: Spent 3.47 s on a formula simplification that was a NOOP. DAG size: 102 [2018-11-10 06:19:34,948 WARN L179 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 96 [2018-11-10 06:19:40,144 WARN L179 SmtUtils]: Spent 5.19 s on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2018-11-10 06:19:40,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 457 treesize of output 454 [2018-11-10 06:19:40,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 23 [2018-11-10 06:19:40,181 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:40,249 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:40,270 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 457 treesize of output 454 [2018-11-10 06:19:40,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 23 [2018-11-10 06:19:40,279 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:40,355 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:42,665 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 457 treesize of output 454 [2018-11-10 06:19:42,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 23 [2018-11-10 06:19:42,685 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:42,770 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:42,843 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 457 treesize of output 454 [2018-11-10 06:19:42,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 23 [2018-11-10 06:19:42,855 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:42,957 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:43,781 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 430 treesize of output 296 [2018-11-10 06:19:43,789 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 139 treesize of output 3 [2018-11-10 06:19:43,790 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:43,817 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:43,824 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 430 treesize of output 296 [2018-11-10 06:19:43,831 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 139 treesize of output 3 [2018-11-10 06:19:43,832 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:43,855 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:44,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 430 treesize of output 296 [2018-11-10 06:19:44,677 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 139 treesize of output 3 [2018-11-10 06:19:44,678 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:44,704 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:44,721 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 430 treesize of output 296 [2018-11-10 06:19:44,729 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 139 treesize of output 3 [2018-11-10 06:19:44,729 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:44,755 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:45,333 INFO L267 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 4 dim-2 vars, End of recursive call: 16 dim-0 vars, and 4 xjuncts. [2018-11-10 06:19:45,333 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 16 variables, input treesize:661, output treesize:629 [2018-11-10 06:19:57,639 WARN L179 SmtUtils]: Spent 10.14 s on a formula simplification that was a NOOP. DAG size: 140 [2018-11-10 06:19:57,642 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:19:57,642 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/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 [2018-11-10 06:19:57,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:19:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:19:57,710 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:19:57,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 06:19:57,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 06:19:57,896 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:57,898 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:57,903 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:19:57,903 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-10 06:19:58,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 36 [2018-11-10 06:19:58,374 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:19:58,374 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:58,605 INFO L303 Elim1Store]: Index analysis took 154 ms [2018-11-10 06:19:58,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 42 [2018-11-10 06:19:58,647 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 31 treesize of output 30 [2018-11-10 06:19:58,647 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:19:59,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2018-11-10 06:19:59,504 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-10 06:20:01,439 INFO L303 Elim1Store]: Index analysis took 254 ms [2018-11-10 06:20:01,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 29 treesize of output 54 [2018-11-10 06:20:01,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 40 [2018-11-10 06:20:01,553 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 4 xjuncts. [2018-11-10 06:20:02,637 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 25 [2018-11-10 06:20:02,637 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:03,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 44 [2018-11-10 06:20:03,206 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 4 xjuncts. [2018-11-10 06:20:03,954 INFO L267 ElimStorePlain]: Start of recursive call 7: 3 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-11-10 06:20:06,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 37 [2018-11-10 06:20:06,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-11-10 06:20:06,171 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:06,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-10 06:20:06,336 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:06,397 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:07,744 INFO L303 Elim1Store]: Index analysis took 218 ms [2018-11-10 06:20:07,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 26 treesize of output 53 [2018-11-10 06:20:07,809 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 31 treesize of output 30 [2018-11-10 06:20:07,809 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:09,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 40 [2018-11-10 06:20:09,213 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-11-10 06:20:09,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2018-11-10 06:20:09,858 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-10 06:20:10,169 INFO L267 ElimStorePlain]: Start of recursive call 14: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 06:20:10,663 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 06:20:10,804 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 06:20:11,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 36 [2018-11-10 06:20:11,042 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 [2018-11-10 06:20:11,042 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:11,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 42 [2018-11-10 06:20:11,139 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2018-11-10 06:20:11,139 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:11,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2018-11-10 06:20:11,399 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-11-10 06:20:11,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 29 treesize of output 54 [2018-11-10 06:20:11,794 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-11-10 06:20:11,795 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:12,072 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 44 [2018-11-10 06:20:12,073 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 4 xjuncts. [2018-11-10 06:20:12,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 40 [2018-11-10 06:20:12,366 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 4 xjuncts. [2018-11-10 06:20:12,605 INFO L267 ElimStorePlain]: Start of recursive call 23: 3 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-11-10 06:20:13,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 26 treesize of output 53 [2018-11-10 06:20:13,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2018-11-10 06:20:13,228 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:13,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2018-11-10 06:20:13,480 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-10 06:20:13,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 40 [2018-11-10 06:20:13,698 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 4 xjuncts. [2018-11-10 06:20:13,793 INFO L267 ElimStorePlain]: Start of recursive call 27: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-10 06:20:13,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 37 [2018-11-10 06:20:13,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 25 [2018-11-10 06:20:13,979 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:14,032 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:14,110 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-10 06:20:14,175 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-10 06:20:14,288 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-11-10 06:20:14,288 INFO L202 ElimStorePlain]: Needed 32 recursive calls to eliminate 7 variables, input treesize:126, output treesize:161 [2018-11-10 06:20:14,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 06:20:14,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 06:20:14,698 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:14,701 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:14,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-10 06:20:14,713 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 15 treesize of output 7 [2018-11-10 06:20:14,713 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:14,715 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:14,720 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:14,720 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:33, output treesize:11 [2018-11-10 06:20:14,824 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 06:20:14,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 06:20:14,826 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:14,827 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:14,829 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:14,829 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-10 06:20:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-10 06:20:14,832 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:20:14,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 06:20:14,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [27] total 36 [2018-11-10 06:20:14,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-11-10 06:20:14,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-11-10 06:20:14,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1312, Unknown=1, NotChecked=72, Total=1482 [2018-11-10 06:20:14,863 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand 36 states. [2018-11-10 06:20:35,850 WARN L179 SmtUtils]: Spent 3.53 s on a formula simplification that was a NOOP. DAG size: 120 [2018-11-10 06:20:46,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:20:46,633 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2018-11-10 06:20:46,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-10 06:20:46,640 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 53 [2018-11-10 06:20:46,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:20:46,641 INFO L225 Difference]: With dead ends: 93 [2018-11-10 06:20:46,641 INFO L226 Difference]: Without dead ends: 91 [2018-11-10 06:20:46,642 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=192, Invalid=2463, Unknown=1, NotChecked=100, Total=2756 [2018-11-10 06:20:46,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-11-10 06:20:46,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 61. [2018-11-10 06:20:46,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-10 06:20:46,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2018-11-10 06:20:46,653 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 53 [2018-11-10 06:20:46,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:20:46,654 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2018-11-10 06:20:46,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-11-10 06:20:46,654 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2018-11-10 06:20:46,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-10 06:20:46,655 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:20:46,655 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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] [2018-11-10 06:20:46,655 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:20:46,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:20:46,655 INFO L82 PathProgramCache]: Analyzing trace with hash -699506380, now seen corresponding path program 2 times [2018-11-10 06:20:46,656 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 06:20:46,656 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 06:20:46,671 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-10 06:20:46,900 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 06:20:46,900 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 06:20:46,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:20:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 06:20:46,998 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:20:47,132 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-10 06:20:47,137 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:20:47,138 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/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 [2018-11-10 06:20:47,150 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 06:20:47,257 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 06:20:47,257 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 06:20:47,261 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:20:47,272 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 06:20:47,272 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:20:47,358 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-10 06:20:47,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 06:20:47,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6] total 9 [2018-11-10 06:20:47,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 06:20:47,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 06:20:47,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-10 06:20:47,378 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand 9 states. [2018-11-10 06:20:47,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:20:47,524 INFO L93 Difference]: Finished difference Result 94 states and 107 transitions. [2018-11-10 06:20:47,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 06:20:47,525 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2018-11-10 06:20:47,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:20:47,526 INFO L225 Difference]: With dead ends: 94 [2018-11-10 06:20:47,526 INFO L226 Difference]: Without dead ends: 49 [2018-11-10 06:20:47,527 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-10 06:20:47,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-10 06:20:47,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-11-10 06:20:47,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-10 06:20:47,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2018-11-10 06:20:47,533 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 58 [2018-11-10 06:20:47,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:20:47,533 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2018-11-10 06:20:47,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 06:20:47,534 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2018-11-10 06:20:47,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-10 06:20:47,535 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:20:47,535 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:20:47,535 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:20:47,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:20:47,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1342668105, now seen corresponding path program 1 times [2018-11-10 06:20:47,536 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 06:20:47,536 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_63bc31e2-9813-4db0-97f9-0cff00c4caf3/bin-2019/utaipan/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 [2018-11-10 06:20:47,550 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:20:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:20:48,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:20:48,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 06:20:48,022 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,026 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,027 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 06:20:48,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 06:20:48,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:20:48,190 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,193 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,206 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,206 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:37, output treesize:33 [2018-11-10 06:20:48,250 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:20:48,256 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 54 treesize of output 58 [2018-11-10 06:20:48,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-10 06:20:48,259 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,272 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,287 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,287 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:57, output treesize:38 [2018-11-10 06:20:48,358 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:20:48,359 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:20:48,361 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:20:48,362 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 54 [2018-11-10 06:20:48,367 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 34 treesize of output 46 [2018-11-10 06:20:48,368 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,381 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,409 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:46, output treesize:47 [2018-11-10 06:20:48,480 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 11 treesize of output 8 [2018-11-10 06:20:48,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 06:20:48,483 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,486 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,514 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:20:48,517 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 39 treesize of output 49 [2018-11-10 06:20:48,520 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 18 treesize of output 16 [2018-11-10 06:20:48,520 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,532 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,558 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:70, output treesize:69 [2018-11-10 06:20:48,751 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 15 treesize of output 12 [2018-11-10 06:20:48,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-10 06:20:48,754 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,756 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,769 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:20:48,769 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:28 [2018-11-10 06:20:50,253 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_73 (_ BitVec 32)) (v_prenex_74 (_ BitVec 32)) (v_prenex_75 (_ BitVec 32)) (v_prenex_76 (_ BitVec 32)) (v_prenex_77 (_ BitVec 32)) (v_prenex_78 (_ BitVec 32))) (let ((.cse4 (store (select |c_old(#memory_$Pointer$.base)| v_prenex_74) (_ bv0 32) (_ bv0 32)))) (let ((.cse8 (store (select |c_old(#memory_$Pointer$.offset)| v_prenex_74) (_ bv0 32) (_ bv0 32))) (.cse9 (store |c_old(#memory_$Pointer$.base)| v_prenex_74 .cse4))) (let ((.cse5 (select (select .cse9 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset|)) (.cse0 (select (select (store |c_old(#memory_$Pointer$.offset)| v_prenex_74 .cse8) |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset|))) (let ((.cse2 (select (select .cse9 .cse5) .cse0))) (and (not (= .cse0 (_ bv0 32))) (= (let ((.cse1 (let ((.cse3 (store |c_old(#memory_$Pointer$.base)| v_prenex_74 (store .cse4 v_prenex_75 .cse5)))) (store .cse3 |c_sll_circular_prepend_#in~head.base| (store (select .cse3 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset| v_prenex_74))))) (store .cse1 .cse2 (store (select .cse1 .cse2) v_prenex_78 v_prenex_73))) |c_#memory_$Pointer$.base|) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_74)) (= (let ((.cse6 (let ((.cse7 (store |c_old(#memory_$Pointer$.offset)| v_prenex_74 (store .cse8 v_prenex_75 v_prenex_76)))) (store .cse7 |c_sll_circular_prepend_#in~head.base| (store (select .cse7 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset| v_prenex_75))))) (store .cse6 .cse2 (store (select .cse6 .cse2) v_prenex_78 v_prenex_77))) |c_#memory_$Pointer$.offset|))))))) (exists ((|sll_circular_prepend_read~$Pointer$_#value.offset| (_ BitVec 32)) (|sll_circular_prepend_write~$Pointer$_#value.offset| (_ BitVec 32)) (|sll_circular_prepend_write~$Pointer$_#value.base| (_ BitVec 32)) (sll_circular_prepend_~new_head~1.base (_ BitVec 32)) (sll_circular_prepend_~new_head~1.offset (_ BitVec 32)) (|sll_circular_prepend_write~$Pointer$_#ptr.offset| (_ BitVec 32))) (let ((.cse17 (store (select |c_old(#memory_$Pointer$.base)| sll_circular_prepend_~new_head~1.base) (_ bv0 32) (_ bv0 32)))) (let ((.cse18 (store |c_old(#memory_$Pointer$.base)| sll_circular_prepend_~new_head~1.base .cse17))) (let ((.cse14 (select (select .cse18 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset|)) (.cse13 (store (select |c_old(#memory_$Pointer$.offset)| sll_circular_prepend_~new_head~1.base) (_ bv0 32) (_ bv0 32)))) (let ((.cse11 (select (select .cse18 .cse14) (select (select (store |c_old(#memory_$Pointer$.offset)| sll_circular_prepend_~new_head~1.base .cse13) |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset|)))) (and (= (let ((.cse10 (let ((.cse12 (store |c_old(#memory_$Pointer$.offset)| sll_circular_prepend_~new_head~1.base (store .cse13 sll_circular_prepend_~new_head~1.offset |sll_circular_prepend_read~$Pointer$_#value.offset|)))) (store .cse12 |c_sll_circular_prepend_#in~head.base| (store (select .cse12 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset| sll_circular_prepend_~new_head~1.offset))))) (store .cse10 .cse11 (store (select .cse10 .cse11) |sll_circular_prepend_write~$Pointer$_#ptr.offset| |sll_circular_prepend_write~$Pointer$_#value.offset|))) |c_#memory_$Pointer$.offset|) (not (= (_ bv0 32) .cse14)) (= |c_#memory_$Pointer$.base| (let ((.cse15 (let ((.cse16 (store |c_old(#memory_$Pointer$.base)| sll_circular_prepend_~new_head~1.base (store .cse17 sll_circular_prepend_~new_head~1.offset .cse14)))) (store .cse16 |c_sll_circular_prepend_#in~head.base| (store (select .cse16 |c_sll_circular_prepend_#in~head.base|) |c_sll_circular_prepend_#in~head.offset| sll_circular_prepend_~new_head~1.base))))) (store .cse15 .cse11 (store (select .cse15 .cse11) |sll_circular_prepend_write~$Pointer$_#ptr.offset| |sll_circular_prepend_write~$Pointer$_#value.base|)))) (= (_ bv0 1) (select |c_old(#valid)| sll_circular_prepend_~new_head~1.base))))))))) is different from true [2018-11-10 06:21:25,731 WARN L179 SmtUtils]: Spent 35.47 s on a formula simplification. DAG size of input: 311 DAG size of output: 70 [2018-11-10 06:21:25,908 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:21:25,964 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:21:26,065 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:21:26,117 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 06:21:26,118 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 06:21:26,119 INFO L303 Elim1Store]: Index analysis took 387 ms [2018-11-10 06:21:26,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 61 [2018-11-10 06:21:26,120 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:21:27,826 INFO L303 Elim1Store]: Index analysis took 599 ms [2018-11-10 06:21:27,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 195 [2018-11-10 06:21:28,863 WARN L179 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 58 [2018-11-10 06:21:28,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-11-10 06:21:28,928 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 06:21:29,660 INFO L303 Elim1Store]: Index analysis took 114 ms [2018-11-10 06:21:29,660 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 181 treesize of output 169 [2018-11-10 06:21:29,743 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-11-10 06:21:29,744 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-10 06:21:30,147 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 152 treesize of output 144 [2018-11-10 06:21:30,384 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 06:21:30,385 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_33 term size 22 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 06:21:30,388 INFO L168 Benchmark]: Toolchain (without parser) took 291712.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -128.9 MB). Peak memory consumption was 89.2 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:30,388 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:21:30,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.05 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 916.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:30,388 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -207.7 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:30,388 INFO L168 Benchmark]: Boogie Preprocessor took 22.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:30,388 INFO L168 Benchmark]: RCFGBuilder took 378.86 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: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:30,389 INFO L168 Benchmark]: TraceAbstraction took 290914.15 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -207.3 kB). Peak memory consumption was 87.3 MB. Max. memory is 11.5 GB. [2018-11-10 06:21:30,390 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 318.05 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 916.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -207.7 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.06 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 378.86 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: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 290914.15 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -207.3 kB). Peak memory consumption was 87.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_33 term size 22 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_33 term size 22: 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...