./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal_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_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/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 28eb62e409662a14417b5a67d3fe5de851f13e52 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/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 28eb62e409662a14417b5a67d3fe5de851f13e52 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_32 term size 13 --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:06:25,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:06:25,700 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:06:25,708 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:06:25,709 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:06:25,709 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:06:25,711 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:06:25,712 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:06:25,713 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:06:25,714 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:06:25,715 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:06:25,715 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:06:25,716 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:06:25,716 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:06:25,717 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:06:25,718 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:06:25,718 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:06:25,720 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:06:25,721 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:06:25,723 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:06:25,724 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:06:25,724 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:06:25,726 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:06:25,726 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:06:25,727 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:06:25,727 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:06:25,728 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:06:25,729 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:06:25,729 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:06:25,730 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:06:25,730 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:06:25,731 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:06:25,731 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:06:25,731 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:06:25,732 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:06:25,733 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:06:25,733 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 22:06:25,743 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:06:25,743 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:06:25,744 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:06:25,744 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:06:25,744 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:06:25,744 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:06:25,744 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 22:06:25,744 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:06:25,744 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 22:06:25,745 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 22:06:25,745 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:06:25,745 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:06:25,745 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:06:25,745 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:06:25,746 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:06:25,746 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:06:25,746 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:06:25,746 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:06:25,746 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:06:25,746 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:06:25,748 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:06:25,748 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:06:25,748 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:06:25,748 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:06:25,749 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:06:25,749 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:06:25,749 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:06:25,749 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:06:25,749 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:06:25,749 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:06:25,749 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 22:06:25,750 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:06:25,750 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:06:25,750 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:06:25,750 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_9745b96e-9e28-4403-9b27-91a638245b4b/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 -> 28eb62e409662a14417b5a67d3fe5de851f13e52 [2018-10-26 22:06:25,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:06:25,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:06:25,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:06:25,788 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:06:25,789 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:06:25,789 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i [2018-10-26 22:06:25,831 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/data/fb2442ab9/e8d65068f0d5442e8b409bd454fd3d3e/FLAGb5b2038ba [2018-10-26 22:06:26,225 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:06:26,226 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/sv-benchmarks/c/list-simple/dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i [2018-10-26 22:06:26,236 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/data/fb2442ab9/e8d65068f0d5442e8b409bd454fd3d3e/FLAGb5b2038ba [2018-10-26 22:06:26,245 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/data/fb2442ab9/e8d65068f0d5442e8b409bd454fd3d3e [2018-10-26 22:06:26,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:06:26,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:06:26,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:06:26,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:06:26,252 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:06:26,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5d9a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26, skipping insertion in model container [2018-10-26 22:06:26,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:06:26,297 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:06:26,518 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:06:26,525 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:06:26,570 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:06:26,612 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:06:26,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26 WrapperNode [2018-10-26 22:06:26,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:06:26,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:06:26,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:06:26,614 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:06:26,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:06:26,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:06:26,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:06:26,727 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:06:26,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (1/1) ... [2018-10-26 22:06:26,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:06:26,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:06:26,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:06:26,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:06:26,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/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 [2018-10-26 22:06:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2018-10-26 22:06:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2018-10-26 22:06:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 22:06:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-10-26 22:06:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-10-26 22:06:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-10-26 22:06:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:06:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:06:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:06:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:06:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2018-10-26 22:06:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2018-10-26 22:06:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure dll_prepend [2018-10-26 22:06:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_prepend [2018-10-26 22:06:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:06:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:06:27,453 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:06:27,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:06:27 BoogieIcfgContainer [2018-10-26 22:06:27,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:06:27,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:06:27,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:06:27,459 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:06:27,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:06:26" (1/3) ... [2018-10-26 22:06:27,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3412fc7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:06:27, skipping insertion in model container [2018-10-26 22:06:27,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:26" (2/3) ... [2018-10-26 22:06:27,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3412fc7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:06:27, skipping insertion in model container [2018-10-26 22:06:27,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:06:27" (3/3) ... [2018-10-26 22:06:27,462 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i [2018-10-26 22:06:27,475 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:06:27,481 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:06:27,498 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:06:27,531 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:06:27,531 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:06:27,531 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:06:27,532 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:06:27,532 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:06:27,532 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:06:27,532 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:06:27,532 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:06:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-26 22:06:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-26 22:06:27,561 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:27,562 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:06:27,573 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:27,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:27,577 INFO L82 PathProgramCache]: Analyzing trace with hash 750227345, now seen corresponding path program 1 times [2018-10-26 22:06:27,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:06:27,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:27,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:27,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:27,632 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:06:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:27,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:06:27,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:06:27,780 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:06:27,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:06:27,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:06:27,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:06:27,798 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-10-26 22:06:27,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:06:27,819 INFO L93 Difference]: Finished difference Result 93 states and 112 transitions. [2018-10-26 22:06:27,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:06:27,820 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2018-10-26 22:06:27,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:06:27,827 INFO L225 Difference]: With dead ends: 93 [2018-10-26 22:06:27,827 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 22:06:27,830 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 [2018-10-26 22:06:27,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 22:06:27,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-26 22:06:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 22:06:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-10-26 22:06:27,860 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 29 [2018-10-26 22:06:27,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:06:27,860 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-10-26 22:06:27,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:06:27,861 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-10-26 22:06:27,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-26 22:06:27,862 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:27,862 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:06:27,862 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:27,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:27,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1936192900, now seen corresponding path program 1 times [2018-10-26 22:06:27,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:06:27,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:27,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:27,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:27,864 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:06:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:28,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:06:28,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 22:06:28,086 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:06:28,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 22:06:28,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 22:06:28,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 22:06:28,088 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 5 states. [2018-10-26 22:06:28,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:06:28,195 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2018-10-26 22:06:28,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 22:06:28,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-10-26 22:06:28,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:06:28,197 INFO L225 Difference]: With dead ends: 70 [2018-10-26 22:06:28,197 INFO L226 Difference]: Without dead ends: 45 [2018-10-26 22:06:28,198 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:06:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-10-26 22:06:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-10-26 22:06:28,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-10-26 22:06:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2018-10-26 22:06:28,204 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 30 [2018-10-26 22:06:28,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:06:28,204 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2018-10-26 22:06:28,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 22:06:28,205 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2018-10-26 22:06:28,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-26 22:06:28,205 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:28,205 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:06:28,206 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:28,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:28,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1649863280, now seen corresponding path program 1 times [2018-10-26 22:06:28,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:06:28,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:28,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:28,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:28,209 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:06:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:28,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:28,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:06:28,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:06:28,330 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:06:28,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:06:28,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:06:28,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:06:28,331 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2018-10-26 22:06:28,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:06:28,391 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2018-10-26 22:06:28,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:06:28,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-10-26 22:06:28,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:06:28,392 INFO L225 Difference]: With dead ends: 76 [2018-10-26 22:06:28,392 INFO L226 Difference]: Without dead ends: 45 [2018-10-26 22:06:28,393 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:06:28,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-10-26 22:06:28,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2018-10-26 22:06:28,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-26 22:06:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2018-10-26 22:06:28,398 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 36 [2018-10-26 22:06:28,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:06:28,398 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2018-10-26 22:06:28,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:06:28,398 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2018-10-26 22:06:28,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-26 22:06:28,400 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:28,401 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:06:28,401 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:28,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:28,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1515849774, now seen corresponding path program 1 times [2018-10-26 22:06:28,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:06:28,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:28,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:28,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:28,404 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:06:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:28,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:28,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:06:28,520 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 22:06:28,521 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 37 with the following transitions: [2018-10-26 22:06:28,522 INFO L202 CegarAbsIntRunner]: [4], [5], [6], [10], [14], [16], [22], [24], [29], [31], [35], [36], [37], [39], [42], [46], [47], [51], [53], [55], [58], [86], [104], [110], [112], [113], [116], [117], [118], [119], [120], [122], [123], [124], [125] [2018-10-26 22:06:28,574 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 22:06:28,574 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 22:06:29,019 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 22:06:29,020 INFO L272 AbstractInterpreter]: Visited 15 different actions 21 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 48 variables. [2018-10-26 22:06:29,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:29,067 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 22:06:29,413 INFO L227 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 86.64% of their original sizes. [2018-10-26 22:06:29,415 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 22:06:30,133 INFO L415 sIntCurrentIteration]: We unified 35 AI predicates to 35 [2018-10-26 22:06:30,133 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 22:06:30,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 22:06:30,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-10-26 22:06:30,134 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:06:30,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:06:30,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:06:30,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:06:30,135 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 9 states. [2018-10-26 22:06:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:06:31,839 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2018-10-26 22:06:31,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:06:31,839 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-10-26 22:06:31,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:06:31,840 INFO L225 Difference]: With dead ends: 76 [2018-10-26 22:06:31,840 INFO L226 Difference]: Without dead ends: 51 [2018-10-26 22:06:31,840 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-10-26 22:06:31,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-26 22:06:31,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2018-10-26 22:06:31,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 22:06:31,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-10-26 22:06:31,847 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 36 [2018-10-26 22:06:31,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:06:31,847 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-10-26 22:06:31,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:06:31,847 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-10-26 22:06:31,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-26 22:06:31,848 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:31,848 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 22:06:31,848 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:31,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:31,849 INFO L82 PathProgramCache]: Analyzing trace with hash 483841434, now seen corresponding path program 1 times [2018-10-26 22:06:31,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:06:31,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:31,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:31,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:31,852 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:06:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:32,294 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-26 22:06:32,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:06:32,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-26 22:06:32,295 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:06:32,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-26 22:06:32,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-26 22:06:32,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-10-26 22:06:32,296 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 10 states. [2018-10-26 22:06:32,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:06:32,593 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2018-10-26 22:06:32,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 22:06:32,593 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-10-26 22:06:32,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:06:32,594 INFO L225 Difference]: With dead ends: 52 [2018-10-26 22:06:32,594 INFO L226 Difference]: Without dead ends: 50 [2018-10-26 22:06:32,595 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-10-26 22:06:32,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-10-26 22:06:32,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-10-26 22:06:32,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 22:06:32,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-10-26 22:06:32,603 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 42 [2018-10-26 22:06:32,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:06:32,604 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-10-26 22:06:32,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-26 22:06:32,604 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-10-26 22:06:32,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-26 22:06:32,605 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:32,605 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-10-26 22:06:32,605 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:32,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:32,605 INFO L82 PathProgramCache]: Analyzing trace with hash 211174503, now seen corresponding path program 1 times [2018-10-26 22:06:32,605 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:06:32,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:32,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:32,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:06:32,609 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:06:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:33,264 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-26 22:06:33,616 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2018-10-26 22:06:33,876 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2018-10-26 22:06:34,721 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 65 [2018-10-26 22:06:34,882 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:34,883 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:06:34,883 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 22:06:34,883 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2018-10-26 22:06:34,883 INFO L202 CegarAbsIntRunner]: [4], [5], [6], [10], [14], [16], [22], [24], [27], [29], [31], [35], [36], [37], [39], [42], [46], [47], [51], [53], [55], [60], [64], [68], [81], [86], [104], [110], [112], [113], [116], [117], [118], [119], [120], [122], [123], [124], [125] [2018-10-26 22:06:34,886 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 22:06:34,886 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 22:06:35,646 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-26 22:06:35,646 INFO L272 AbstractInterpreter]: Visited 39 different actions 99 times. Merged at 19 different actions 41 times. Never widened. Found 6 fixpoints after 3 different actions. Largest state had 51 variables. [2018-10-26 22:06:35,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:35,668 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-26 22:06:35,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:06:35,668 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/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 [2018-10-26 22:06:35,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:35,678 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 22:06:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:35,759 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:06:35,783 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 [2018-10-26 22:06:35,785 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:35,793 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:35,793 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-26 22:06:36,401 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:36,402 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:36,402 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:36,403 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 [2018-10-26 22:06:36,407 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 [2018-10-26 22:06:36,408 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:36,419 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:36,426 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. [2018-10-26 22:06:36,427 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:32 [2018-10-26 22:06:36,469 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 [2018-10-26 22:06:36,471 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 [2018-10-26 22:06:36,471 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:36,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:36,482 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. [2018-10-26 22:06:36,482 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:48 [2018-10-26 22:06:36,935 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 [2018-10-26 22:06:36,937 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 [2018-10-26 22:06:36,937 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:36,940 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:36,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:36,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:340, output treesize:361 [2018-10-26 22:06:37,144 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:37,145 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:37,147 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:37,149 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:37,150 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 25 treesize of output 37 [2018-10-26 22:06:37,150 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:37,214 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:37,247 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:37,288 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:06:37,290 INFO L303 Elim1Store]: Index analysis took 121 ms [2018-10-26 22:06:37,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 189 [2018-10-26 22:06:37,336 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 93 [2018-10-26 22:06:37,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 96 [2018-10-26 22:06:37,349 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-10-26 22:06:37,373 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:06:37,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 136 [2018-10-26 22:06:37,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 79 [2018-10-26 22:06:37,421 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:37,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-10-26 22:06:37,644 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:06:37,645 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_6 term size 12 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.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) [2018-10-26 22:06:37,647 INFO L168 Benchmark]: Toolchain (without parser) took 11399.61 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 388.5 MB). Free memory was 951.8 MB in the beginning and 960.1 MB in the end (delta: -8.4 MB). Peak memory consumption was 380.1 MB. Max. memory is 11.5 GB. [2018-10-26 22:06:37,648 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:06:37,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 927.6 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:06:37,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.3 MB). Free memory was 927.6 MB in the beginning and 1.2 GB in the end (delta: -270.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2018-10-26 22:06:37,649 INFO L168 Benchmark]: Boogie Preprocessor took 32.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:06:37,649 INFO L168 Benchmark]: RCFGBuilder took 695.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. [2018-10-26 22:06:37,650 INFO L168 Benchmark]: TraceAbstraction took 10191.04 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 188.2 MB). Free memory was 1.2 GB in the beginning and 960.1 MB in the end (delta: 190.6 MB). Peak memory consumption was 378.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:06:37,653 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 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 927.6 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 113.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.3 MB). Free memory was 927.6 MB in the beginning and 1.2 GB in the end (delta: -270.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 695.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10191.04 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 188.2 MB). Free memory was 1.2 GB in the beginning and 960.1 MB in the end (delta: 190.6 MB). Peak memory consumption was 378.8 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_6 term size 12 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_6 term size 12: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:06:39,879 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:06:39,880 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:06:39,889 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:06:39,889 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:06:39,890 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:06:39,891 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:06:39,892 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:06:39,893 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:06:39,894 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:06:39,895 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:06:39,895 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:06:39,896 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:06:39,898 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:06:39,899 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:06:39,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:06:39,900 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:06:39,901 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:06:39,903 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:06:39,905 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:06:39,905 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:06:39,906 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:06:39,908 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:06:39,909 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:06:39,909 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:06:39,909 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:06:39,910 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:06:39,912 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:06:39,912 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:06:39,913 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:06:39,913 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:06:39,914 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:06:39,914 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:06:39,920 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:06:39,921 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:06:39,921 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:06:39,922 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 22:06:39,937 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:06:39,937 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:06:39,938 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:06:39,938 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:06:39,942 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:06:39,943 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:06:39,943 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:06:39,943 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:06:39,944 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:06:39,944 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:06:39,944 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:06:39,944 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:06:39,944 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:06:39,944 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:06:39,945 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:06:39,945 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 22:06:39,945 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 22:06:39,945 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:06:39,945 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:06:39,945 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:06:39,946 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:06:39,946 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:06:39,946 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:06:39,946 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:06:39,946 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:06:39,949 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:06:39,950 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:06:39,950 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:06:39,950 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 22:06:39,951 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:06:39,951 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 22:06:39,951 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 22:06:39,951 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_9745b96e-9e28-4403-9b27-91a638245b4b/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 -> 28eb62e409662a14417b5a67d3fe5de851f13e52 [2018-10-26 22:06:39,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:06:40,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:06:40,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:06:40,011 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:06:40,011 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:06:40,012 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/../../sv-benchmarks/c/list-simple/dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i [2018-10-26 22:06:40,055 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/data/54f4e3fc9/df43692cf4644311bd214bbe53e63551/FLAG17ee8c095 [2018-10-26 22:06:40,481 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:06:40,482 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/sv-benchmarks/c/list-simple/dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i [2018-10-26 22:06:40,492 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/data/54f4e3fc9/df43692cf4644311bd214bbe53e63551/FLAG17ee8c095 [2018-10-26 22:06:40,504 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/data/54f4e3fc9/df43692cf4644311bd214bbe53e63551 [2018-10-26 22:06:40,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:06:40,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:06:40,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:06:40,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:06:40,513 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:06:40,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:40,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747bf8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40, skipping insertion in model container [2018-10-26 22:06:40,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:40,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:06:40,561 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:06:40,845 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:06:40,857 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:06:40,902 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:06:40,946 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:06:40,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40 WrapperNode [2018-10-26 22:06:40,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:06:40,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:06:40,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:06:40,948 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:06:40,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:40,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:40,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:06:40,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:06:40,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:06:40,999 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:06:41,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:41,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:41,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:41,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:41,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:41,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:41,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (1/1) ... [2018-10-26 22:06:41,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:06:41,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:06:41,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:06:41,143 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:06:41,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/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 [2018-10-26 22:06:41,186 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2018-10-26 22:06:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2018-10-26 22:06:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 22:06:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-10-26 22:06:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-10-26 22:06:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-10-26 22:06:41,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:06:41,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:06:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:06:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:06:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2018-10-26 22:06:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2018-10-26 22:06:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure dll_prepend [2018-10-26 22:06:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_prepend [2018-10-26 22:06:41,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:06:41,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:06:41,904 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:06:41,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:06:41 BoogieIcfgContainer [2018-10-26 22:06:41,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:06:41,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:06:41,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:06:41,908 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:06:41,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:06:40" (1/3) ... [2018-10-26 22:06:41,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b610a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:06:41, skipping insertion in model container [2018-10-26 22:06:41,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:06:40" (2/3) ... [2018-10-26 22:06:41,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b610a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:06:41, skipping insertion in model container [2018-10-26 22:06:41,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:06:41" (3/3) ... [2018-10-26 22:06:41,912 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_prepend_unequal_true-unreach-call_true-valid-memsafety.i [2018-10-26 22:06:41,921 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:06:41,927 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:06:41,940 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:06:41,963 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:06:41,964 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:06:41,964 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:06:41,964 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:06:41,964 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:06:41,964 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:06:41,964 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:06:41,964 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:06:41,964 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:06:41,979 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-26 22:06:41,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-26 22:06:41,985 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:41,985 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:06:41,991 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:41,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:41,996 INFO L82 PathProgramCache]: Analyzing trace with hash 750227345, now seen corresponding path program 1 times [2018-10-26 22:06:42,001 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:06:42,001 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/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 [2018-10-26 22:06:42,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:42,127 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:06:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:42,147 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:06:42,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:06:42,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:06:42,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:06:42,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:06:42,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:06:42,165 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-10-26 22:06:42,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:06:42,184 INFO L93 Difference]: Finished difference Result 93 states and 112 transitions. [2018-10-26 22:06:42,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:06:42,185 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2018-10-26 22:06:42,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:06:42,192 INFO L225 Difference]: With dead ends: 93 [2018-10-26 22:06:42,192 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 22:06:42,195 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:06:42,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 22:06:42,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-26 22:06:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 22:06:42,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-10-26 22:06:42,228 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 29 [2018-10-26 22:06:42,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:06:42,229 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-10-26 22:06:42,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:06:42,229 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-10-26 22:06:42,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-26 22:06:42,230 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:42,231 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:06:42,232 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:42,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:42,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1936192900, now seen corresponding path program 1 times [2018-10-26 22:06:42,233 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:06:42,233 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/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 [2018-10-26 22:06:42,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:42,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:06:42,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:42,536 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:06:42,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:06:42,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 22:06:42,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 22:06:42,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 22:06:42,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 22:06:42,546 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 5 states. [2018-10-26 22:06:42,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:06:42,623 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2018-10-26 22:06:42,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 22:06:42,623 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-10-26 22:06:42,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:06:42,624 INFO L225 Difference]: With dead ends: 70 [2018-10-26 22:06:42,625 INFO L226 Difference]: Without dead ends: 45 [2018-10-26 22:06:42,625 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:06:42,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-10-26 22:06:42,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-10-26 22:06:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-10-26 22:06:42,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2018-10-26 22:06:42,632 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 30 [2018-10-26 22:06:42,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:06:42,633 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2018-10-26 22:06:42,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 22:06:42,633 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2018-10-26 22:06:42,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-26 22:06:42,634 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:42,634 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:06:42,634 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:42,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:42,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1649863280, now seen corresponding path program 1 times [2018-10-26 22:06:42,636 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:06:42,636 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/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 [2018-10-26 22:06:42,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:42,759 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:06:42,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:42,800 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (4)] Exception during sending of exit command (exit): Broken pipe [2018-10-26 22:06:42,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:06:42,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:06:42,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:06:42,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:06:42,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:06:42,804 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2018-10-26 22:06:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:06:42,872 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2018-10-26 22:06:42,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:06:42,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-10-26 22:06:42,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:06:42,875 INFO L225 Difference]: With dead ends: 76 [2018-10-26 22:06:42,875 INFO L226 Difference]: Without dead ends: 45 [2018-10-26 22:06:42,876 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:06:42,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-10-26 22:06:42,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2018-10-26 22:06:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-26 22:06:42,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2018-10-26 22:06:42,882 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 36 [2018-10-26 22:06:42,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:06:42,883 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2018-10-26 22:06:42,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:06:42,883 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2018-10-26 22:06:42,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-26 22:06:42,884 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:42,884 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:06:42,885 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:42,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:42,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1515849774, now seen corresponding path program 1 times [2018-10-26 22:06:42,885 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:06:42,886 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 22:06:42,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:43,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:06:43,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:43,108 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 22:06:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:06:43,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:06:43,575 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-26 22:06:43,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:06:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:43,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:06:43,730 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 [2018-10-26 22:06:43,732 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 [2018-10-26 22:06:43,733 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:43,736 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:43,739 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:43,739 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-10-26 22:06:43,929 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 [2018-10-26 22:06:43,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-26 22:06:43,933 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:43,937 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:43,953 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 [2018-10-26 22:06:43,958 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 [2018-10-26 22:06:43,958 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:43,961 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:43,981 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:43,981 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-10-26 22:06:44,073 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 31 treesize of output 19 [2018-10-26 22:06:44,079 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 3 [2018-10-26 22:06:44,079 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:44,082 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:44,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:44,087 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:31, output treesize:3 [2018-10-26 22:06:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 22:06:44,118 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:06:44,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:06:44,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6, 6] total 17 [2018-10-26 22:06:44,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-26 22:06:44,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-26 22:06:44,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2018-10-26 22:06:44,148 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 17 states. [2018-10-26 22:06:45,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:06:45,191 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2018-10-26 22:06:45,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-26 22:06:45,192 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 36 [2018-10-26 22:06:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:06:45,193 INFO L225 Difference]: With dead ends: 76 [2018-10-26 22:06:45,193 INFO L226 Difference]: Without dead ends: 51 [2018-10-26 22:06:45,194 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2018-10-26 22:06:45,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-26 22:06:45,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2018-10-26 22:06:45,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-10-26 22:06:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2018-10-26 22:06:45,200 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 36 [2018-10-26 22:06:45,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:06:45,201 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2018-10-26 22:06:45,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-26 22:06:45,201 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2018-10-26 22:06:45,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-26 22:06:45,201 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:06:45,202 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-10-26 22:06:45,202 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:06:45,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:06:45,202 INFO L82 PathProgramCache]: Analyzing trace with hash 211174503, now seen corresponding path program 1 times [2018-10-26 22:06:45,204 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:06:45,204 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-26 22:06:45,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:06:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:06:45,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:06:45,540 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 [2018-10-26 22:06:45,540 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:45,551 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:45,551 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-10-26 22:06:45,582 WARN L854 $PredicateComparison]: unable to prove that (exists ((|dll_create_#Ultimate.alloc_#res.base| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |dll_create_#Ultimate.alloc_#res.base| (_ bv1 1))) (= (_ bv0 1) (select |c_old(#valid)| |dll_create_#Ultimate.alloc_#res.base|)))) is different from true [2018-10-26 22:06:45,673 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:45,675 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:45,676 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 [2018-10-26 22:06:45,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-10-26 22:06:45,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:45,693 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:45,705 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. [2018-10-26 22:06:45,705 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:27 [2018-10-26 22:06:45,795 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 [2018-10-26 22:06:45,806 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 [2018-10-26 22:06:45,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:45,809 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:45,823 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. [2018-10-26 22:06:45,824 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:41 [2018-10-26 22:06:46,476 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 [2018-10-26 22:06:46,497 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 [2018-10-26 22:06:46,497 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:46,532 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:46,616 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:46,616 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:292, output treesize:288 [2018-10-26 22:06:47,961 WARN L179 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 120 DAG size of output: 55 [2018-10-26 22:06:47,982 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:47,994 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:48,010 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:48,016 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:48,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-10-26 22:06:48,017 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:48,124 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:48,249 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:06:48,250 INFO L303 Elim1Store]: Index analysis took 146 ms [2018-10-26 22:06:48,253 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 147 [2018-10-26 22:06:48,453 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-10-26 22:06:48,460 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 67 [2018-10-26 22:06:48,507 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 67 treesize of output 68 [2018-10-26 22:06:48,508 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-10-26 22:06:48,693 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:06:49,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 134 [2018-10-26 22:06:49,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 104 [2018-10-26 22:06:49,034 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-10-26 22:06:49,622 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 107 treesize of output 96 [2018-10-26 22:06:49,623 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:50,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 105 [2018-10-26 22:06:50,154 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:50,493 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:50,682 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 135 [2018-10-26 22:06:50,693 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:06:50,724 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 105 [2018-10-26 22:06:50,749 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 3 case distinctions, treesize of input 19 treesize of output 27 [2018-10-26 22:06:50,749 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 3 xjuncts. [2018-10-26 22:06:50,799 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:06:50,981 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-26 22:06:51,226 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 80 [2018-10-26 22:06:51,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-10-26 22:06:51,244 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-10-26 22:06:51,290 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:06:51,356 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:51,444 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 139 [2018-10-26 22:06:51,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 129 [2018-10-26 22:06:51,450 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:51,659 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:51,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 113 treesize of output 136 [2018-10-26 22:06:51,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 105 [2018-10-26 22:06:51,699 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:51,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 97 [2018-10-26 22:06:51,927 INFO L267 ElimStorePlain]: Start of recursive call 19: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-10-26 22:06:52,204 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-10-26 22:06:52,598 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:52,602 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 106 [2018-10-26 22:06:52,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 67 [2018-10-26 22:06:52,607 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:52,638 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:52,963 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 5 xjuncts. [2018-10-26 22:06:53,045 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 143 [2018-10-26 22:06:53,051 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 134 treesize of output 133 [2018-10-26 22:06:53,052 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:53,241 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:53,265 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:53,266 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 126 [2018-10-26 22:06:53,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 67 [2018-10-26 22:06:53,273 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:53,423 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:53,614 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:53,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 140 [2018-10-26 22:06:53,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 109 [2018-10-26 22:06:53,669 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:54,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 101 [2018-10-26 22:06:54,034 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:54,202 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-10-26 22:06:54,546 INFO L267 ElimStorePlain]: Start of recursive call 26: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-10-26 22:06:55,104 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 5 xjuncts. [2018-10-26 22:06:55,238 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 121 treesize of output 138 [2018-10-26 22:06:55,247 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 129 treesize of output 112 [2018-10-26 22:06:55,247 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:55,940 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 2 case distinctions, treesize of input 98 treesize of output 96 [2018-10-26 22:06:55,941 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 2 xjuncts. [2018-10-26 22:06:56,739 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:06:56,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 95 [2018-10-26 22:06:56,891 INFO L303 Elim1Store]: Index analysis took 141 ms [2018-10-26 22:06:57,001 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 3 case distinctions, treesize of input 25 treesize of output 31 [2018-10-26 22:06:57,001 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 3 xjuncts. [2018-10-26 22:06:57,096 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:06:57,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 87 [2018-10-26 22:06:57,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-10-26 22:06:57,120 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:57,153 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:57,658 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 118 [2018-10-26 22:06:57,685 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 95 treesize of output 92 [2018-10-26 22:06:57,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2018-10-26 22:06:57,711 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 2 xjuncts. [2018-10-26 22:06:57,765 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:06:57,893 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:06:58,023 INFO L267 ElimStorePlain]: Start of recursive call 30: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:59,575 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 86 [2018-10-26 22:06:59,581 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 43 [2018-10-26 22:06:59,581 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:59,609 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:59,618 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 92 treesize of output 90 [2018-10-26 22:06:59,622 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-10-26 22:06:59,622 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-10-26 22:06:59,654 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:06:59,708 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 85 treesize of output 83 [2018-10-26 22:06:59,731 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 22 treesize of output 18 [2018-10-26 22:06:59,732 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:59,777 INFO L267 ElimStorePlain]: Start of recursive call 44: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:59,786 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 97 treesize of output 93 [2018-10-26 22:06:59,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-10-26 22:06:59,792 INFO L267 ElimStorePlain]: Start of recursive call 47: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:59,861 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:59,884 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 140 treesize of output 126 [2018-10-26 22:06:59,890 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 96 treesize of output 80 [2018-10-26 22:06:59,890 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:59,937 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:06:59,946 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 136 treesize of output 122 [2018-10-26 22:06:59,951 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 96 treesize of output 80 [2018-10-26 22:06:59,952 INFO L267 ElimStorePlain]: Start of recursive call 51: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:00,003 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:00,014 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 81 treesize of output 79 [2018-10-26 22:07:00,020 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 22 treesize of output 18 [2018-10-26 22:07:00,021 INFO L267 ElimStorePlain]: Start of recursive call 53: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:00,081 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:00,094 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 98 treesize of output 90 [2018-10-26 22:07:00,098 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 43 [2018-10-26 22:07:00,099 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:00,137 INFO L267 ElimStorePlain]: Start of recursive call 54: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:00,152 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 101 treesize of output 97 [2018-10-26 22:07:00,159 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-10-26 22:07:00,160 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:00,224 INFO L267 ElimStorePlain]: Start of recursive call 56: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:00,232 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 96 treesize of output 94 [2018-10-26 22:07:00,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-10-26 22:07:00,237 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:00,273 INFO L267 ElimStorePlain]: Start of recursive call 58: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:00,320 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 96 treesize of output 94 [2018-10-26 22:07:00,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-10-26 22:07:00,340 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:00,632 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:00,669 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 116 treesize of output 114 [2018-10-26 22:07:00,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-10-26 22:07:00,684 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:00,783 INFO L267 ElimStorePlain]: Start of recursive call 62: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:02,730 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 63 treesize of output 57 [2018-10-26 22:07:02,734 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-10-26 22:07:02,735 INFO L267 ElimStorePlain]: Start of recursive call 65: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:02,775 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:02,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 23 treesize of output 24 [2018-10-26 22:07:02,776 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:02,798 INFO L267 ElimStorePlain]: Start of recursive call 64: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:02,808 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 67 [2018-10-26 22:07:02,828 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:07:02,836 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:02,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 50 [2018-10-26 22:07:02,852 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 3 xjuncts. [2018-10-26 22:07:02,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2018-10-26 22:07:02,948 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:02,961 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 [2018-10-26 22:07:02,962 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:03,012 INFO L267 ElimStorePlain]: Start of recursive call 67: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:07:03,020 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 67 treesize of output 61 [2018-10-26 22:07:03,025 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-10-26 22:07:03,025 INFO L267 ElimStorePlain]: Start of recursive call 72: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:03,067 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:03,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 23 treesize of output 24 [2018-10-26 22:07:03,070 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:03,093 INFO L267 ElimStorePlain]: Start of recursive call 71: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:03,102 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 90 treesize of output 84 [2018-10-26 22:07:03,106 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-10-26 22:07:03,107 INFO L267 ElimStorePlain]: Start of recursive call 75: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:03,155 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:03,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 32 [2018-10-26 22:07:03,156 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:03,184 INFO L267 ElimStorePlain]: Start of recursive call 74: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:03,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 65 [2018-10-26 22:07:03,198 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-10-26 22:07:03,199 INFO L267 ElimStorePlain]: Start of recursive call 78: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:03,251 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:03,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 23 treesize of output 24 [2018-10-26 22:07:03,252 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:03,280 INFO L267 ElimStorePlain]: Start of recursive call 77: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:03,288 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 59 treesize of output 53 [2018-10-26 22:07:03,298 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:03,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2018-10-26 22:07:03,299 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:03,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-10-26 22:07:03,325 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:03,341 INFO L267 ElimStorePlain]: Start of recursive call 80: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:03,352 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 94 treesize of output 86 [2018-10-26 22:07:03,356 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-10-26 22:07:03,357 INFO L267 ElimStorePlain]: Start of recursive call 84: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:03,423 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:07:03,431 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:03,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 50 [2018-10-26 22:07:03,452 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 3 xjuncts. [2018-10-26 22:07:03,524 INFO L267 ElimStorePlain]: Start of recursive call 83: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:07:03,560 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 [2018-10-26 22:07:03,564 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-10-26 22:07:03,565 INFO L267 ElimStorePlain]: Start of recursive call 87: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:03,617 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:07:03,624 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:03,639 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 42 [2018-10-26 22:07:03,640 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 3 xjuncts. [2018-10-26 22:07:03,718 INFO L267 ElimStorePlain]: Start of recursive call 86: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:07:03,727 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 64 treesize of output 56 [2018-10-26 22:07:03,732 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-10-26 22:07:03,732 INFO L267 ElimStorePlain]: Start of recursive call 90: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:03,789 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:07:03,795 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:03,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 42 [2018-10-26 22:07:03,812 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 3 xjuncts. [2018-10-26 22:07:03,869 INFO L267 ElimStorePlain]: Start of recursive call 89: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:07:03,876 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 87 treesize of output 79 [2018-10-26 22:07:03,881 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-10-26 22:07:03,881 INFO L267 ElimStorePlain]: Start of recursive call 93: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:03,939 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:07:03,946 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:03,961 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 50 [2018-10-26 22:07:03,962 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 3 xjuncts. [2018-10-26 22:07:04,029 INFO L267 ElimStorePlain]: Start of recursive call 92: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:07:04,038 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 67 treesize of output 59 [2018-10-26 22:07:04,068 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:07:04,077 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:04,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 48 [2018-10-26 22:07:04,094 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 3 xjuncts. [2018-10-26 22:07:04,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2018-10-26 22:07:04,171 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:04,176 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 [2018-10-26 22:07:04,176 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:04,210 INFO L267 ElimStorePlain]: Start of recursive call 95: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:07:04,220 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 60 treesize of output 54 [2018-10-26 22:07:04,226 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-10-26 22:07:04,226 INFO L267 ElimStorePlain]: Start of recursive call 100: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:04,264 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:04,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 23 treesize of output 24 [2018-10-26 22:07:04,265 INFO L267 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:04,284 INFO L267 ElimStorePlain]: Start of recursive call 99: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:06,105 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 11 dim-0 vars, and 18 xjuncts. [2018-10-26 22:07:06,630 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 12 dim-0 vars, and 4 xjuncts. [2018-10-26 22:07:06,630 INFO L202 ElimStorePlain]: Needed 101 recursive calls to eliminate 8 variables, input treesize:326, output treesize:185 [2018-10-26 22:07:06,809 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 [2018-10-26 22:07:06,811 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 [2018-10-26 22:07:06,811 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:06,813 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:06,823 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:06,823 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:58, output treesize:47 [2018-10-26 22:07:06,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 31 [2018-10-26 22:07:06,919 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 20 treesize of output 11 [2018-10-26 22:07:06,919 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:06,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-10-26 22:07:06,926 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:06,955 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:06,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:06,963 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:48, output treesize:4 [2018-10-26 22:07:07,008 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2018-10-26 22:07:07,008 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 22:07:08,636 WARN L179 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 118 [2018-10-26 22:07:08,970 WARN L179 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-10-26 22:07:09,326 WARN L179 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-10-26 22:07:09,632 WARN L179 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-10-26 22:07:19,675 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:07:19,675 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9745b96e-9e28-4403-9b27-91a638245b4b/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:07:19,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:07:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:07:19,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:07:21,874 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 [2018-10-26 22:07:21,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:21,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:21,879 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2018-10-26 22:07:22,216 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 [2018-10-26 22:07:22,219 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 [2018-10-26 22:07:22,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:22,223 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:22,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:22,231 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:23 [2018-10-26 22:07:23,170 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 11 treesize of output 8 [2018-10-26 22:07:23,183 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 [2018-10-26 22:07:23,183 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:23,209 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:23,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-10-26 22:07:23,286 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:292, output treesize:288 [2018-10-26 22:07:24,922 WARN L179 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 112 DAG size of output: 47 [2018-10-26 22:07:24,938 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:07:24,944 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:07:24,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-10-26 22:07:24,945 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:25,069 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:07:25,269 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:07:25,278 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:07:25,279 INFO L303 Elim1Store]: Index analysis took 232 ms [2018-10-26 22:07:25,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 154 treesize of output 182 [2018-10-26 22:07:51,487 WARN L179 SmtUtils]: Spent 26.05 s on a formula simplification. DAG size of input: 151 DAG size of output: 127 [2018-10-26 22:07:51,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 114 [2018-10-26 22:07:51,598 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-10-26 22:07:51,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2018-10-26 22:07:51,613 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:51,703 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:07:51,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 120 [2018-10-26 22:07:51,855 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2018-10-26 22:07:51,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2018-10-26 22:07:51,867 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-26 22:07:51,913 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:08:04,087 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:08:04,093 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:08:04,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 99 [2018-10-26 22:08:04,237 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-10-26 22:08:04,246 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:08:04,263 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 106 [2018-10-26 22:08:04,264 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-10-26 22:08:04,346 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:08:16,804 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 73 [2018-10-26 22:08:16,813 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:08:16,832 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 70 treesize of output 80 [2018-10-26 22:08:16,832 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-10-26 22:08:16,890 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:08:29,934 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:08:29,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 81 [2018-10-26 22:08:29,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-10-26 22:08:30,162 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:08:30,163 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_32 term size 13 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java: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) [2018-10-26 22:08:30,166 INFO L168 Benchmark]: Toolchain (without parser) took 109658.62 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 339.7 MB). Free memory was 946.5 MB in the beginning and 1.2 GB in the end (delta: -248.5 MB). Peak memory consumption was 398.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:08:30,167 INFO L168 Benchmark]: CDTParser took 0.37 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. [2018-10-26 22:08:30,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.13 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 919.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:08:30,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.29 ms. Allocated memory is still 1.0 GB. Free memory was 919.7 MB in the beginning and 914.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:08:30,168 INFO L168 Benchmark]: Boogie Preprocessor took 142.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 914.3 MB in the beginning and 1.2 GB in the end (delta: -252.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-10-26 22:08:30,168 INFO L168 Benchmark]: RCFGBuilder took 764.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:08:30,168 INFO L168 Benchmark]: TraceAbstraction took 108260.27 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 157.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -59.5 MB). Peak memory consumption was 405.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:08:30,170 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 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 438.13 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 919.7 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 50.29 ms. Allocated memory is still 1.0 GB. Free memory was 919.7 MB in the beginning and 914.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 142.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 914.3 MB in the beginning and 1.2 GB in the end (delta: -252.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 764.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 108260.27 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 157.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -59.5 MB). Peak memory consumption was 405.7 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_32 term size 13 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_32 term size 13: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...