./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/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 30390fe155d7f123b603151bf2b8a7453d49cf9d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/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 30390fe155d7f123b603151bf2b8a7453d49cf9d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_33 term size 24 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:16:11,588 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:16:11,589 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:16:11,597 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:16:11,597 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:16:11,598 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:16:11,599 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:16:11,600 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:16:11,601 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:16:11,601 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:16:11,602 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:16:11,602 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:16:11,603 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:16:11,604 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:16:11,604 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:16:11,605 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:16:11,605 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:16:11,607 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:16:11,608 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:16:11,609 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:16:11,610 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:16:11,610 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:16:11,612 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:16:11,612 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:16:11,612 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:16:11,613 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:16:11,614 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:16:11,614 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:16:11,615 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:16:11,615 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:16:11,616 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:16:11,616 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:16:11,616 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:16:11,616 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:16:11,617 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:16:11,617 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:16:11,618 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:16:11,627 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:16:11,627 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:16:11,628 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:16:11,628 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:16:11,628 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:16:11,628 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:16:11,628 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:16:11,628 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:16:11,628 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:16:11,628 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:16:11,629 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:16:11,629 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:16:11,629 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:16:11,629 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:16:11,629 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:16:11,630 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:16:11,630 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:16:11,630 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:16:11,630 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:16:11,630 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:16:11,630 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:16:11,630 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:16:11,631 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:16:11,631 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:16:11,631 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:16:11,631 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:16:11,631 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:16:11,631 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:16:11,631 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:16:11,631 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:16:11,632 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:16:11,632 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:16:11,632 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:16:11,632 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:16:11,632 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:16:11,632 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:16:11,632 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:16:11,632 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_cad91a5e-405c-43b6-b989-cf07f42be92e/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 -> 30390fe155d7f123b603151bf2b8a7453d49cf9d [2018-11-18 17:16:11,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:16:11,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:16:11,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:16:11,663 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:16:11,664 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:16:11,664 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 17:16:11,697 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/data/41b6fcc1f/f6d7aaad48e545fdb43cfd1a04c83903/FLAGa5416e41d [2018-11-18 17:16:12,151 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:16:12,152 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 17:16:12,161 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/data/41b6fcc1f/f6d7aaad48e545fdb43cfd1a04c83903/FLAGa5416e41d [2018-11-18 17:16:12,172 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/data/41b6fcc1f/f6d7aaad48e545fdb43cfd1a04c83903 [2018-11-18 17:16:12,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:16:12,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:16:12,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:16:12,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:16:12,180 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:16:12,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@430aaa52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12, skipping insertion in model container [2018-11-18 17:16:12,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:16:12,224 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:16:12,482 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:16:12,490 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:16:12,576 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:16:12,650 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:16:12,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12 WrapperNode [2018-11-18 17:16:12,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:16:12,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:16:12,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:16:12,651 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:16:12,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:16:12,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:16:12,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:16:12,682 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:16:12,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (1/1) ... [2018-11-18 17:16:12,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:16:12,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:16:12,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:16:12,720 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:16:12,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:16:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2018-11-18 17:16:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2018-11-18 17:16:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2018-11-18 17:16:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-11-18 17:16:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-11-18 17:16:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-11-18 17:16:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:16:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:16:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 17:16:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2018-11-18 17:16:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2018-11-18 17:16:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:16:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2018-11-18 17:16:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-11-18 17:16:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2018-11-18 17:16:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-11-18 17:16:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2018-11-18 17:16:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2018-11-18 17:16:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:16:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 17:16:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 17:16:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 17:16:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 17:16:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-11-18 17:16:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-11-18 17:16:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2018-11-18 17:16:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2018-11-18 17:16:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:16:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:16:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 17:16:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-18 17:16:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-18 17:16:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2018-11-18 17:16:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2018-11-18 17:16:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:16:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:16:13,256 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:16:13,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:13 BoogieIcfgContainer [2018-11-18 17:16:13,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:16:13,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:16:13,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:16:13,260 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:16:13,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:16:12" (1/3) ... [2018-11-18 17:16:13,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ac74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:16:13, skipping insertion in model container [2018-11-18 17:16:13,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:12" (2/3) ... [2018-11-18 17:16:13,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ac74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:16:13, skipping insertion in model container [2018-11-18 17:16:13,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:13" (3/3) ... [2018-11-18 17:16:13,263 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 17:16:13,268 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:16:13,273 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:16:13,282 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:16:13,304 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:16:13,304 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:16:13,304 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:16:13,304 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:16:13,304 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:16:13,304 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:16:13,304 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:16:13,304 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:16:13,318 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2018-11-18 17:16:13,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:16:13,323 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:13,323 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:13,325 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:13,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:13,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1217746547, now seen corresponding path program 1 times [2018-11-18 17:16:13,330 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:16:13,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:13,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:13,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:13,364 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:16:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:13,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:13,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:13,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:16:13,428 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:16:13,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:16:13,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:16:13,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:16:13,440 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2018-11-18 17:16:13,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:13,469 INFO L93 Difference]: Finished difference Result 300 states and 471 transitions. [2018-11-18 17:16:13,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:16:13,470 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-18 17:16:13,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:13,476 INFO L225 Difference]: With dead ends: 300 [2018-11-18 17:16:13,476 INFO L226 Difference]: Without dead ends: 139 [2018-11-18 17:16:13,479 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:16:13,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-11-18 17:16:13,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-11-18 17:16:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-18 17:16:13,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 160 transitions. [2018-11-18 17:16:13,508 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 160 transitions. Word has length 15 [2018-11-18 17:16:13,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:13,508 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 160 transitions. [2018-11-18 17:16:13,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:16:13,508 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 160 transitions. [2018-11-18 17:16:13,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 17:16:13,509 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:13,509 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, 1, 1, 1, 1, 1] [2018-11-18 17:16:13,510 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:13,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:13,510 INFO L82 PathProgramCache]: Analyzing trace with hash -483005412, now seen corresponding path program 1 times [2018-11-18 17:16:13,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:16:13,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:13,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:13,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:13,512 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:16:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:13,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:13,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:13,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:16:13,591 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:16:13,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:16:13,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:16:13,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:16:13,594 INFO L87 Difference]: Start difference. First operand 139 states and 160 transitions. Second operand 5 states. [2018-11-18 17:16:13,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:13,702 INFO L93 Difference]: Finished difference Result 141 states and 161 transitions. [2018-11-18 17:16:13,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:16:13,702 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-18 17:16:13,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:13,704 INFO L225 Difference]: With dead ends: 141 [2018-11-18 17:16:13,704 INFO L226 Difference]: Without dead ends: 138 [2018-11-18 17:16:13,705 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:16:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-18 17:16:13,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-18 17:16:13,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 17:16:13,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2018-11-18 17:16:13,718 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 35 [2018-11-18 17:16:13,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:13,720 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2018-11-18 17:16:13,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:16:13,720 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2018-11-18 17:16:13,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 17:16:13,721 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:13,721 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:13,721 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:13,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:13,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1326671008, now seen corresponding path program 1 times [2018-11-18 17:16:13,722 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:16:13,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:13,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:13,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:13,724 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:16:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:13,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:13,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-18 17:16:13,931 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:16:13,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 17:16:13,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 17:16:13,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2018-11-18 17:16:13,932 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 14 states. [2018-11-18 17:16:14,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:14,897 INFO L93 Difference]: Finished difference Result 250 states and 292 transitions. [2018-11-18 17:16:14,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 17:16:14,898 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2018-11-18 17:16:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:14,900 INFO L225 Difference]: With dead ends: 250 [2018-11-18 17:16:14,901 INFO L226 Difference]: Without dead ends: 244 [2018-11-18 17:16:14,901 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2018-11-18 17:16:14,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-11-18 17:16:14,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 216. [2018-11-18 17:16:14,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-11-18 17:16:14,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 254 transitions. [2018-11-18 17:16:14,919 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 254 transitions. Word has length 38 [2018-11-18 17:16:14,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:14,920 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 254 transitions. [2018-11-18 17:16:14,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 17:16:14,920 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 254 transitions. [2018-11-18 17:16:14,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 17:16:14,921 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:14,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:14,921 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:14,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:14,921 INFO L82 PathProgramCache]: Analyzing trace with hash -804495318, now seen corresponding path program 1 times [2018-11-18 17:16:14,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:16:14,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:14,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:14,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:14,923 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:16:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:15,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:15,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:15,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-18 17:16:15,355 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:16:15,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 17:16:15,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 17:16:15,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:16:15,356 INFO L87 Difference]: Start difference. First operand 216 states and 254 transitions. Second operand 17 states. [2018-11-18 17:16:17,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:17,227 INFO L93 Difference]: Finished difference Result 381 states and 457 transitions. [2018-11-18 17:16:17,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 17:16:17,228 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 41 [2018-11-18 17:16:17,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:17,230 INFO L225 Difference]: With dead ends: 381 [2018-11-18 17:16:17,230 INFO L226 Difference]: Without dead ends: 378 [2018-11-18 17:16:17,231 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=172, Invalid=884, Unknown=0, NotChecked=0, Total=1056 [2018-11-18 17:16:17,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2018-11-18 17:16:17,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 348. [2018-11-18 17:16:17,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 17:16:17,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 420 transitions. [2018-11-18 17:16:17,263 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 420 transitions. Word has length 41 [2018-11-18 17:16:17,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:17,263 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 420 transitions. [2018-11-18 17:16:17,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 17:16:17,263 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 420 transitions. [2018-11-18 17:16:17,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 17:16:17,264 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:17,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:17,264 INFO L423 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:17,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:17,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1704057548, now seen corresponding path program 1 times [2018-11-18 17:16:17,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:16:17,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:17,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:17,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:17,267 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:16:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:17,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:17,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:17,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-18 17:16:17,699 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:16:17,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 17:16:17,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 17:16:17,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:16:17,700 INFO L87 Difference]: Start difference. First operand 348 states and 420 transitions. Second operand 17 states. [2018-11-18 17:16:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:19,407 INFO L93 Difference]: Finished difference Result 380 states and 455 transitions. [2018-11-18 17:16:19,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 17:16:19,407 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 45 [2018-11-18 17:16:19,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:19,409 INFO L225 Difference]: With dead ends: 380 [2018-11-18 17:16:19,409 INFO L226 Difference]: Without dead ends: 377 [2018-11-18 17:16:19,410 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=169, Invalid=887, Unknown=0, NotChecked=0, Total=1056 [2018-11-18 17:16:19,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2018-11-18 17:16:19,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 348. [2018-11-18 17:16:19,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 17:16:19,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 419 transitions. [2018-11-18 17:16:19,442 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 419 transitions. Word has length 45 [2018-11-18 17:16:19,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:19,443 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 419 transitions. [2018-11-18 17:16:19,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 17:16:19,443 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 419 transitions. [2018-11-18 17:16:19,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 17:16:19,444 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:19,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:19,444 INFO L423 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:19,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:19,445 INFO L82 PathProgramCache]: Analyzing trace with hash 730040884, now seen corresponding path program 1 times [2018-11-18 17:16:19,445 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:16:19,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:19,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:19,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:19,446 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:16:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:19,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:19,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:19,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-18 17:16:19,953 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:16:19,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 17:16:19,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 17:16:19,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2018-11-18 17:16:19,954 INFO L87 Difference]: Start difference. First operand 348 states and 419 transitions. Second operand 18 states. [2018-11-18 17:16:22,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:22,140 INFO L93 Difference]: Finished difference Result 379 states and 453 transitions. [2018-11-18 17:16:22,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 17:16:22,141 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 48 [2018-11-18 17:16:22,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:22,143 INFO L225 Difference]: With dead ends: 379 [2018-11-18 17:16:22,143 INFO L226 Difference]: Without dead ends: 376 [2018-11-18 17:16:22,144 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=196, Invalid=1064, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 17:16:22,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-11-18 17:16:22,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 348. [2018-11-18 17:16:22,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 17:16:22,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 418 transitions. [2018-11-18 17:16:22,183 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 418 transitions. Word has length 48 [2018-11-18 17:16:22,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:22,183 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 418 transitions. [2018-11-18 17:16:22,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 17:16:22,183 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 418 transitions. [2018-11-18 17:16:22,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 17:16:22,184 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:22,184 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:22,184 INFO L423 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:22,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:22,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1256067134, now seen corresponding path program 1 times [2018-11-18 17:16:22,185 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:16:22,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:22,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:22,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:22,186 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:16:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:22,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:22,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:22,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-11-18 17:16:22,616 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:16:22,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 17:16:22,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 17:16:22,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-11-18 17:16:22,617 INFO L87 Difference]: Start difference. First operand 348 states and 418 transitions. Second operand 16 states. [2018-11-18 17:16:24,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:24,091 INFO L93 Difference]: Finished difference Result 373 states and 445 transitions. [2018-11-18 17:16:24,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 17:16:24,093 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 51 [2018-11-18 17:16:24,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:24,095 INFO L225 Difference]: With dead ends: 373 [2018-11-18 17:16:24,095 INFO L226 Difference]: Without dead ends: 370 [2018-11-18 17:16:24,095 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2018-11-18 17:16:24,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2018-11-18 17:16:24,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 348. [2018-11-18 17:16:24,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 17:16:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 417 transitions. [2018-11-18 17:16:24,125 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 417 transitions. Word has length 51 [2018-11-18 17:16:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:24,125 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 417 transitions. [2018-11-18 17:16:24,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 17:16:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 417 transitions. [2018-11-18 17:16:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-18 17:16:24,126 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:24,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:24,127 INFO L423 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:24,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:24,127 INFO L82 PathProgramCache]: Analyzing trace with hash 755229644, now seen corresponding path program 1 times [2018-11-18 17:16:24,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:16:24,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:24,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:24,128 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:16:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:24,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:24,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-18 17:16:24,542 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:16:24,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 17:16:24,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 17:16:24,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-11-18 17:16:24,542 INFO L87 Difference]: Start difference. First operand 348 states and 417 transitions. Second operand 18 states. [2018-11-18 17:16:26,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:26,390 INFO L93 Difference]: Finished difference Result 377 states and 449 transitions. [2018-11-18 17:16:26,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-18 17:16:26,390 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 55 [2018-11-18 17:16:26,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:26,392 INFO L225 Difference]: With dead ends: 377 [2018-11-18 17:16:26,392 INFO L226 Difference]: Without dead ends: 374 [2018-11-18 17:16:26,393 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=228, Invalid=1254, Unknown=0, NotChecked=0, Total=1482 [2018-11-18 17:16:26,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2018-11-18 17:16:26,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 348. [2018-11-18 17:16:26,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 17:16:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 416 transitions. [2018-11-18 17:16:26,433 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 416 transitions. Word has length 55 [2018-11-18 17:16:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:26,433 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 416 transitions. [2018-11-18 17:16:26,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 17:16:26,433 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 416 transitions. [2018-11-18 17:16:26,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 17:16:26,434 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:26,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:26,435 INFO L423 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:26,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:26,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1850540936, now seen corresponding path program 1 times [2018-11-18 17:16:26,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:16:26,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:26,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:26,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:26,436 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:16:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:26,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:26,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-18 17:16:26,793 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:16:26,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 17:16:26,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 17:16:26,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-11-18 17:16:26,794 INFO L87 Difference]: Start difference. First operand 348 states and 416 transitions. Second operand 17 states. [2018-11-18 17:16:28,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:28,438 INFO L93 Difference]: Finished difference Result 371 states and 441 transitions. [2018-11-18 17:16:28,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-18 17:16:28,438 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2018-11-18 17:16:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:28,439 INFO L225 Difference]: With dead ends: 371 [2018-11-18 17:16:28,440 INFO L226 Difference]: Without dead ends: 368 [2018-11-18 17:16:28,440 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2018-11-18 17:16:28,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2018-11-18 17:16:28,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 348. [2018-11-18 17:16:28,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 17:16:28,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 415 transitions. [2018-11-18 17:16:28,473 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 415 transitions. Word has length 58 [2018-11-18 17:16:28,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:28,474 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 415 transitions. [2018-11-18 17:16:28,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 17:16:28,474 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 415 transitions. [2018-11-18 17:16:28,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 17:16:28,474 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:28,474 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:28,474 INFO L423 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:28,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:28,475 INFO L82 PathProgramCache]: Analyzing trace with hash 399203020, now seen corresponding path program 1 times [2018-11-18 17:16:28,475 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:16:28,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:28,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:28,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:16:28,476 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:16:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:16:29,333 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:16:29,333 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:16:29,333 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 63 with the following transitions: [2018-11-18 17:16:29,335 INFO L202 CegarAbsIntRunner]: [0], [1], [56], [58], [60], [63], [65], [69], [86], [89], [90], [96], [100], [106], [110], [118], [124], [128], [136], [139], [424], [426], [427], [431], [436], [438], [443], [447], [453], [462], [463], [464], [472], [473], [482], [512], [513], [514], [515], [516], [518], [519] [2018-11-18 17:16:29,358 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:16:29,358 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:16:29,483 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:16:29,484 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Performed 280 root evaluator evaluations with a maximum evaluation depth of 6. Performed 280 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 30 variables. [2018-11-18 17:16:29,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:29,489 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:16:29,489 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:16:29,490 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:16:29,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:29,497 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:16:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:29,554 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:16:29,596 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 9 treesize of output 12 [2018-11-18 17:16:29,615 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,622 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 12 treesize of output 15 [2018-11-18 17:16:29,622 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 17:16:29,639 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:16:29,661 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 24 treesize of output 21 [2018-11-18 17:16:29,664 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 [2018-11-18 17:16:29,670 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-18 17:16:29,675 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 17:16:29,680 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-11-18 17:16:29,684 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,689 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,693 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,697 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,700 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,717 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 24 treesize of output 21 [2018-11-18 17:16:29,718 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 [2018-11-18 17:16:29,721 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,721 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-18 17:16:29,724 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 17:16:29,727 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-11-18 17:16:29,728 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,732 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,737 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,740 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,744 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,756 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:16:29,756 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:61, output treesize:91 [2018-11-18 17:16:29,810 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,811 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 49 [2018-11-18 17:16:29,812 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,841 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 53 treesize of output 48 [2018-11-18 17:16:29,842 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,870 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 48 treesize of output 44 [2018-11-18 17:16:29,872 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 17:16:29,873 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,881 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,904 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 32 treesize of output 28 [2018-11-18 17:16:29,907 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,907 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 17:16:29,907 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,913 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,933 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 45 treesize of output 41 [2018-11-18 17:16:29,935 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 17:16:29,936 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,943 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-18 17:16:29,961 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:29,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 17:16:29,962 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,967 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:29,976 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:109, output treesize:13 [2018-11-18 17:16:30,035 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:30,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-11-18 17:16:30,036 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:30,040 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 17:16:30,041 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:15 [2018-11-18 17:16:30,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 48 [2018-11-18 17:16:30,184 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 17:16:30,184 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:30,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-18 17:16:30,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-11-18 17:16:30,240 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:30,240 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 30 treesize of output 34 [2018-11-18 17:16:30,241 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:30,256 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:30,337 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 17:16:30,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2018-11-18 17:16:30,343 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:30,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 46 [2018-11-18 17:16:30,345 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:30,362 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:30,440 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 43 treesize of output 34 [2018-11-18 17:16:30,442 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:30,447 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 17:16:30,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 42 [2018-11-18 17:16:30,448 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:30,460 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:30,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 55 [2018-11-18 17:16:30,539 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 17:16:30,740 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:16:30,741 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_12 term size 24 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:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 17:16:30,743 INFO L168 Benchmark]: Toolchain (without parser) took 18568.24 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 517.5 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 348.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:16:30,744 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:16:30,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 474.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:16:30,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:16:30,746 INFO L168 Benchmark]: Boogie Preprocessor took 38.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:16:30,746 INFO L168 Benchmark]: RCFGBuilder took 536.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:16:30,746 INFO L168 Benchmark]: TraceAbstraction took 17485.30 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 362.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -64.4 MB). Peak memory consumption was 298.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:16:30,755 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 474.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 536.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17485.30 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 362.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -64.4 MB). Peak memory consumption was 298.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_12 term size 24 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_12 term size 24: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 17:16:32,186 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:16:32,187 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:16:32,196 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:16:32,196 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:16:32,197 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:16:32,197 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:16:32,199 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:16:32,200 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:16:32,200 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:16:32,201 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:16:32,201 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:16:32,202 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:16:32,203 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:16:32,203 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:16:32,204 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:16:32,205 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:16:32,206 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:16:32,208 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:16:32,209 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:16:32,209 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:16:32,211 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:16:32,212 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:16:32,212 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:16:32,212 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:16:32,213 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:16:32,214 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:16:32,215 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:16:32,215 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:16:32,216 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:16:32,216 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:16:32,217 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:16:32,217 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:16:32,217 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:16:32,218 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:16:32,219 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:16:32,219 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 17:16:32,230 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:16:32,230 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:16:32,230 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:16:32,231 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:16:32,231 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:16:32,231 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:16:32,231 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:16:32,231 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:16:32,231 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:16:32,231 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:16:32,232 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:16:32,232 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:16:32,232 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:16:32,232 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:16:32,232 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:16:32,233 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:16:32,233 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:16:32,233 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 17:16:32,233 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 17:16:32,233 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:16:32,233 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:16:32,233 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:16:32,233 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:16:32,234 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:16:32,234 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:16:32,234 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:16:32,234 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:16:32,234 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:16:32,237 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:16:32,237 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:16:32,237 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:16:32,237 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 17:16:32,237 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:16:32,237 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 17:16:32,237 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 17:16:32,237 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_cad91a5e-405c-43b6-b989-cf07f42be92e/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 -> 30390fe155d7f123b603151bf2b8a7453d49cf9d [2018-11-18 17:16:32,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:16:32,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:16:32,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:16:32,281 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:16:32,281 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:16:32,282 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 17:16:32,325 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/data/1a2627ec3/faf4db7028a54ab4bfe247c9fec61833/FLAG2dc546139 [2018-11-18 17:16:32,710 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:16:32,710 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 17:16:32,720 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/data/1a2627ec3/faf4db7028a54ab4bfe247c9fec61833/FLAG2dc546139 [2018-11-18 17:16:33,081 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/data/1a2627ec3/faf4db7028a54ab4bfe247c9fec61833 [2018-11-18 17:16:33,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:16:33,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:16:33,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:16:33,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:16:33,088 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:16:33,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69549c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33, skipping insertion in model container [2018-11-18 17:16:33,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:16:33,132 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:16:33,460 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:16:33,470 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:16:33,561 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:16:33,641 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:16:33,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33 WrapperNode [2018-11-18 17:16:33,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:16:33,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:16:33,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:16:33,642 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:16:33,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:16:33,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:16:33,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:16:33,677 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:16:33,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (1/1) ... [2018-11-18 17:16:33,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:16:33,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:16:33,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:16:33,720 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:16:33,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:16:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 17:16:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2018-11-18 17:16:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2018-11-18 17:16:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2018-11-18 17:16:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-11-18 17:16:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-11-18 17:16:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-11-18 17:16:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:16:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:16:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 17:16:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2018-11-18 17:16:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2018-11-18 17:16:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:16:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 17:16:33,753 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2018-11-18 17:16:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-11-18 17:16:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2018-11-18 17:16:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-11-18 17:16:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2018-11-18 17:16:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2018-11-18 17:16:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:16:33,754 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 17:16:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 17:16:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-11-18 17:16:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-11-18 17:16:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2018-11-18 17:16:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2018-11-18 17:16:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:16:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:16:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 17:16:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-18 17:16:33,756 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-18 17:16:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2018-11-18 17:16:33,756 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2018-11-18 17:16:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:16:33,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:16:34,174 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:16:34,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:34 BoogieIcfgContainer [2018-11-18 17:16:34,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:16:34,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:16:34,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:16:34,178 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:16:34,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:16:33" (1/3) ... [2018-11-18 17:16:34,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3d2915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:16:34, skipping insertion in model container [2018-11-18 17:16:34,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:33" (2/3) ... [2018-11-18 17:16:34,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3d2915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:16:34, skipping insertion in model container [2018-11-18 17:16:34,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:34" (3/3) ... [2018-11-18 17:16:34,181 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-11-18 17:16:34,189 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:16:34,195 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:16:34,208 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:16:34,233 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:16:34,233 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:16:34,233 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:16:34,233 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:16:34,234 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:16:34,234 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:16:34,234 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:16:34,234 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:16:34,234 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:16:34,249 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2018-11-18 17:16:34,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:16:34,253 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:34,253 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:34,255 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:34,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:34,258 INFO L82 PathProgramCache]: Analyzing trace with hash -914397588, now seen corresponding path program 1 times [2018-11-18 17:16:34,261 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:16:34,261 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:16:34,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:34,318 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:16:34,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:34,333 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:16:34,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:34,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:16:34,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:16:34,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:16:34,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:16:34,348 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2018-11-18 17:16:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:34,382 INFO L93 Difference]: Finished difference Result 298 states and 469 transitions. [2018-11-18 17:16:34,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:16:34,383 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-18 17:16:34,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:34,391 INFO L225 Difference]: With dead ends: 298 [2018-11-18 17:16:34,391 INFO L226 Difference]: Without dead ends: 138 [2018-11-18 17:16:34,395 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:16:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-18 17:16:34,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-18 17:16:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 17:16:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 159 transitions. [2018-11-18 17:16:34,429 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 159 transitions. Word has length 15 [2018-11-18 17:16:34,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:34,430 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 159 transitions. [2018-11-18 17:16:34,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:16:34,430 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 159 transitions. [2018-11-18 17:16:34,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 17:16:34,431 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:34,431 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, 1, 1, 1, 1] [2018-11-18 17:16:34,431 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:34,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:34,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1731062258, now seen corresponding path program 1 times [2018-11-18 17:16:34,432 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:16:34,432 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:16:34,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:34,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:16:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:16:34,512 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:16:34,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:16:34,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:16:34,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 17:16:34,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:16:34,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:16:34,517 INFO L87 Difference]: Start difference. First operand 138 states and 159 transitions. Second operand 5 states. [2018-11-18 17:16:34,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:16:34,653 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2018-11-18 17:16:34,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 17:16:34,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2018-11-18 17:16:34,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:16:34,657 INFO L225 Difference]: With dead ends: 140 [2018-11-18 17:16:34,657 INFO L226 Difference]: Without dead ends: 137 [2018-11-18 17:16:34,658 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 17:16:34,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-11-18 17:16:34,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-11-18 17:16:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-18 17:16:34,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 157 transitions. [2018-11-18 17:16:34,672 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 157 transitions. Word has length 34 [2018-11-18 17:16:34,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:16:34,673 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 157 transitions. [2018-11-18 17:16:34,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 17:16:34,674 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 157 transitions. [2018-11-18 17:16:34,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 17:16:34,675 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:16:34,675 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:16:34,676 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:16:34,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:16:34,676 INFO L82 PathProgramCache]: Analyzing trace with hash -656289715, now seen corresponding path program 1 times [2018-11-18 17:16:34,676 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:16:34,676 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:16:34,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:16:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:16:34,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:16:34,802 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 9 treesize of output 12 [2018-11-18 17:16:34,823 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:34,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 17:16:34,841 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 17:16:34,850 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:16:34,861 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:16:34,862 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:27 [2018-11-18 17:16:34,890 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:34,891 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:34,893 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-18 17:16:34,893 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:34,914 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 14 treesize of output 7 [2018-11-18 17:16:34,914 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:34,922 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:34,922 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:7 [2018-11-18 17:16:34,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 48 [2018-11-18 17:16:35,093 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-18 17:16:35,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 17:16:35,107 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:35,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 53 [2018-11-18 17:16:35,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2018-11-18 17:16:35,256 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:35,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 17:16:35,260 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:35,290 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:35,551 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 39 treesize of output 41 [2018-11-18 17:16:35,562 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:35,564 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:35,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 44 [2018-11-18 17:16:35,599 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-18 17:16:35,686 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:16:36,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2018-11-18 17:16:36,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 17:16:36,056 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:36,077 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:36,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-18 17:16:36,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-18 17:16:36,095 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:36,120 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:36,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 53 [2018-11-18 17:16:36,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 40 [2018-11-18 17:16:36,444 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:36,521 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 37 [2018-11-18 17:16:36,522 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:36,560 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:36,687 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:16:36,736 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-18 17:16:36,753 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 17:16:36,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 46 [2018-11-18 17:16:36,774 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:36,774 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 43 [2018-11-18 17:16:36,775 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:36,822 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:37,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-11-18 17:16:37,187 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:37,188 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 30 treesize of output 34 [2018-11-18 17:16:37,189 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:37,220 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:37,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 34 [2018-11-18 17:16:37,543 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:37,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 42 [2018-11-18 17:16:37,549 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 17:16:37,582 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:16:37,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 48 [2018-11-18 17:16:37,881 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:37,888 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:16:37,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 69 [2018-11-18 17:16:37,910 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-11-18 17:16:38,207 INFO L267 ElimStorePlain]: Start of recursive call 23: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:16:38,348 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:16:38,474 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 17:16:38,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-18 17:16:38,566 INFO L202 ElimStorePlain]: Needed 24 recursive calls to eliminate 4 variables, input treesize:81, output treesize:93 [2018-11-18 17:16:54,721 WARN L180 SmtUtils]: Spent 16.12 s on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2018-11-18 17:17:02,991 WARN L180 SmtUtils]: Spent 8.23 s on a formula simplification that was a NOOP. DAG size: 35 [2018-11-18 17:17:13,114 WARN L180 SmtUtils]: Spent 10.07 s on a formula simplification that was a NOOP. DAG size: 38 [2018-11-18 17:17:13,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 59 [2018-11-18 17:17:13,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 80 [2018-11-18 17:17:13,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 17:17:13,410 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:17:13,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 72 treesize of output 83 [2018-11-18 17:17:13,746 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:13,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 71 treesize of output 103 [2018-11-18 17:17:13,945 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-11-18 17:17:14,820 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:14,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 67 [2018-11-18 17:17:14,902 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 4 xjuncts. [2018-11-18 17:17:15,662 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:15,809 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 105 [2018-11-18 17:17:15,810 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 17:17:20,998 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 6 xjuncts. [2018-11-18 17:17:23,491 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 19 dim-0 vars, and 8 xjuncts. [2018-11-18 17:17:23,491 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:139, output treesize:503 [2018-11-18 17:17:41,083 WARN L180 SmtUtils]: Spent 15.47 s on a formula simplification. DAG size of input: 154 DAG size of output: 60 [2018-11-18 17:17:41,113 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,115 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,116 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 66 [2018-11-18 17:17:41,116 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 17:17:41,337 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,341 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,343 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 67 [2018-11-18 17:17:41,344 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:17:41,549 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,553 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,554 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 74 [2018-11-18 17:17:41,555 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 17:17:41,758 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,759 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,760 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 49 [2018-11-18 17:17:41,760 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 17:17:41,956 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,958 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:41,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 70 [2018-11-18 17:17:41,959 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 17:17:42,110 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:42,113 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:42,115 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:42,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 50 [2018-11-18 17:17:42,116 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 17:17:42,233 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2018-11-18 17:17:42,233 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:431, output treesize:180 [2018-11-18 17:17:42,420 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-11-18 17:17:42,648 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-11-18 17:17:42,922 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-11-18 17:17:42,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2018-11-18 17:17:42,951 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 27 [2018-11-18 17:17:42,951 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:17:42,975 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:17:42,976 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2018-11-18 17:17:42,977 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 17:17:42,985 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:17:43,001 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:17:43,001 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 9 variables, input treesize:192, output treesize:4 [2018-11-18 17:17:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:17:43,053 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:17:43,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:17:43,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-18 17:17:43,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 17:17:43,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 17:17:43,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=172, Unknown=1, NotChecked=0, Total=210 [2018-11-18 17:17:43,056 INFO L87 Difference]: Start difference. First operand 137 states and 157 transitions. Second operand 15 states. [2018-11-18 17:17:56,056 WARN L180 SmtUtils]: Spent 12.32 s on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2018-11-18 17:18:08,357 WARN L180 SmtUtils]: Spent 12.21 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2018-11-18 17:18:24,743 WARN L180 SmtUtils]: Spent 16.25 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2018-11-18 17:18:30,374 WARN L180 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2018-11-18 17:18:31,685 WARN L180 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2018-11-18 17:18:32,767 WARN L180 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2018-11-18 17:18:35,773 WARN L180 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2018-11-18 17:18:39,476 WARN L180 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 112 DAG size of output: 112 [2018-11-18 17:18:43,758 WARN L180 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 151 DAG size of output: 151 [2018-11-18 17:18:45,802 WARN L180 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2018-11-18 17:18:54,406 WARN L180 SmtUtils]: Spent 8.37 s on a formula simplification. DAG size of input: 154 DAG size of output: 154 [2018-11-18 17:19:00,497 WARN L180 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2018-11-18 17:19:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:19:02,665 INFO L93 Difference]: Finished difference Result 257 states and 304 transitions. [2018-11-18 17:19:02,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 17:19:02,667 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 37 [2018-11-18 17:19:02,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:19:02,670 INFO L225 Difference]: With dead ends: 257 [2018-11-18 17:19:02,670 INFO L226 Difference]: Without dead ends: 251 [2018-11-18 17:19:02,670 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 122.4s TimeCoverageRelationStatistics Valid=159, Invalid=708, Unknown=3, NotChecked=0, Total=870 [2018-11-18 17:19:02,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-11-18 17:19:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 215. [2018-11-18 17:19:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2018-11-18 17:19:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 253 transitions. [2018-11-18 17:19:02,710 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 253 transitions. Word has length 37 [2018-11-18 17:19:02,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:19:02,710 INFO L480 AbstractCegarLoop]: Abstraction has 215 states and 253 transitions. [2018-11-18 17:19:02,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 17:19:02,710 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 253 transitions. [2018-11-18 17:19:02,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-18 17:19:02,711 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:19:02,711 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:19:02,711 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:19:02,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:19:02,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1073322948, now seen corresponding path program 1 times [2018-11-18 17:19:02,712 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:19:02,712 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cad91a5e-405c-43b6-b989-cf07f42be92e/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:19:02,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:19:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:19:02,810 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:19:02,817 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 9 treesize of output 12 [2018-11-18 17:19:02,830 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:02,836 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 12 treesize of output 15 [2018-11-18 17:19:02,837 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 17:19:02,902 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:19:02,986 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 24 treesize of output 21 [2018-11-18 17:19:02,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-11-18 17:19:02,994 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:02,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-18 17:19:02,999 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 17:19:03,005 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-11-18 17:19:03,006 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,017 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,028 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,037 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,049 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2018-11-18 17:19:03,098 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 [2018-11-18 17:19:03,102 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2018-11-18 17:19:03,106 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 17:19:03,113 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-11-18 17:19:03,116 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,122 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,127 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,132 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,137 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,154 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:19:03,154 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:61, output treesize:91 [2018-11-18 17:19:03,196 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 55 treesize of output 48 [2018-11-18 17:19:03,196 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,239 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,239 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,240 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 49 [2018-11-18 17:19:03,240 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2018-11-18 17:19:03,289 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 17:19:03,289 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,301 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-11-18 17:19:03,349 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 17:19:03,349 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,357 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,385 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 45 treesize of output 41 [2018-11-18 17:19:03,388 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,388 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 17:19:03,388 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,401 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-11-18 17:19:03,426 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-11-18 17:19:03,427 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,433 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,443 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,444 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:113, output treesize:13 [2018-11-18 17:19:03,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 48 [2018-11-18 17:19:03,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 17:19:03,666 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-18 17:19:03,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-11-18 17:19:03,813 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:03,814 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 30 treesize of output 34 [2018-11-18 17:19:03,814 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:03,845 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:04,430 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 17:19:04,431 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 44 treesize of output 43 [2018-11-18 17:19:04,440 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:04,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 46 [2018-11-18 17:19:04,446 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 17:19:04,481 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:19:04,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2018-11-18 17:19:04,849 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:04,856 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 17:19:04,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 53 [2018-11-18 17:19:04,873 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-18 17:19:04,944 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:19:05,334 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 55 [2018-11-18 17:19:05,344 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 17:19:05,545 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:19:05,546 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_33 term size 24 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 17:19:05,548 INFO L168 Benchmark]: Toolchain (without parser) took 152464.40 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 249.6 MB). Free memory was 944.4 MB in the beginning and 912.9 MB in the end (delta: 31.4 MB). Peak memory consumption was 281.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:05,548 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:19:05,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:05,549 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:19:05,549 INFO L168 Benchmark]: Boogie Preprocessor took 42.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:05,549 INFO L168 Benchmark]: RCFGBuilder took 455.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:05,549 INFO L168 Benchmark]: TraceAbstraction took 151372.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 125.8 MB). Free memory was 1.0 GB in the beginning and 912.9 MB in the end (delta: 111.1 MB). Peak memory consumption was 236.9 MB. Max. memory is 11.5 GB. [2018-11-18 17:19:05,551 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 557.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 455.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.6 MB). Peak memory consumption was 51.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 151372.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 125.8 MB). Free memory was 1.0 GB in the beginning and 912.9 MB in the end (delta: 111.1 MB). Peak memory consumption was 236.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_33 term size 24 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_33 term size 24: 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...