./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/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 0e11c684160c36739b32009d12dfc0b40146d3c7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/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 0e11c684160c36739b32009d12dfc0b40146d3c7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_14 __list_add_~new.offset __list_add_~next.base) --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 08:21:06,842 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:21:06,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:21:06,849 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:21:06,849 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:21:06,850 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:21:06,850 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:21:06,852 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:21:06,853 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:21:06,853 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:21:06,854 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:21:06,854 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:21:06,855 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:21:06,855 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:21:06,856 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:21:06,856 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:21:06,857 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:21:06,858 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:21:06,859 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:21:06,860 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:21:06,861 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:21:06,862 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:21:06,864 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:21:06,864 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:21:06,864 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:21:06,865 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:21:06,865 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:21:06,866 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:21:06,866 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:21:06,867 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:21:06,867 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:21:06,867 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:21:06,867 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:21:06,867 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:21:06,868 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:21:06,868 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:21:06,868 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 08:21:06,877 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:21:06,877 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:21:06,877 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 08:21:06,878 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 08:21:06,878 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 08:21:06,878 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 08:21:06,878 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 08:21:06,878 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 08:21:06,878 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 08:21:06,878 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 08:21:06,878 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 08:21:06,879 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 08:21:06,879 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 08:21:06,879 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:21:06,879 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 08:21:06,879 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:21:06,880 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 08:21:06,880 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:21:06,880 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 08:21:06,880 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 08:21:06,880 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 08:21:06,880 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 08:21:06,880 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:21:06,881 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:21:06,881 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 08:21:06,881 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:21:06,881 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:21:06,881 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 08:21:06,881 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 08:21:06,881 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:21:06,881 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:21:06,882 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 08:21:06,882 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 08:21:06,882 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 08:21:06,882 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 08:21:06,882 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 08:21:06,882 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 08:21:06,882 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_02b40d28-7876-4280-9c2e-107a38d26906/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 -> 0e11c684160c36739b32009d12dfc0b40146d3c7 [2018-11-23 08:21:06,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:21:06,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:21:06,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:21:06,922 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:21:06,922 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:21:06,922 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-23 08:21:06,968 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/data/2b5536a6a/0112cae0c88d4f25828e9d8bb9eb0fd7/FLAG591598708 [2018-11-23 08:21:07,427 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:21:07,428 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-23 08:21:07,436 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/data/2b5536a6a/0112cae0c88d4f25828e9d8bb9eb0fd7/FLAG591598708 [2018-11-23 08:21:07,939 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/data/2b5536a6a/0112cae0c88d4f25828e9d8bb9eb0fd7 [2018-11-23 08:21:07,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:21:07,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:21:07,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:21:07,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:21:07,944 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:21:07,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:07" (1/1) ... [2018-11-23 08:21:07,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1771d69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:07, skipping insertion in model container [2018-11-23 08:21:07,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:07" (1/1) ... [2018-11-23 08:21:07,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:21:07,985 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:21:08,249 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:21:08,301 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:21:08,346 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:21:08,420 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:21:08,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08 WrapperNode [2018-11-23 08:21:08,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:21:08,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:21:08,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:21:08,421 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:21:08,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (1/1) ... [2018-11-23 08:21:08,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (1/1) ... [2018-11-23 08:21:08,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:21:08,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:21:08,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:21:08,451 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:21:08,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (1/1) ... [2018-11-23 08:21:08,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (1/1) ... [2018-11-23 08:21:08,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (1/1) ... [2018-11-23 08:21:08,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (1/1) ... [2018-11-23 08:21:08,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (1/1) ... [2018-11-23 08:21:08,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (1/1) ... [2018-11-23 08:21:08,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (1/1) ... [2018-11-23 08:21:08,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:21:08,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:21:08,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:21:08,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:21:08,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/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 [2018-11-23 08:21:08,541 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2018-11-23 08:21:08,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2018-11-23 08:21:08,542 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2018-11-23 08:21:08,542 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-11-23 08:21:08,542 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-11-23 08:21:08,542 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-11-23 08:21:08,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 08:21:08,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 08:21:08,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 08:21:08,543 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2018-11-23 08:21:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2018-11-23 08:21:08,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 08:21:08,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 08:21:08,544 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2018-11-23 08:21:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-11-23 08:21:08,544 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2018-11-23 08:21:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-11-23 08:21:08,544 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2018-11-23 08:21:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2018-11-23 08:21:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 08:21:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 08:21:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-23 08:21:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-23 08:21:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 08:21:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-11-23 08:21:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-11-23 08:21:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2018-11-23 08:21:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2018-11-23 08:21:08,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 08:21:08,546 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 08:21:08,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 08:21:08,546 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-23 08:21:08,546 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-23 08:21:08,546 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2018-11-23 08:21:08,546 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2018-11-23 08:21:08,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:21:08,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:21:08,957 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:21:08,957 INFO L280 CfgBuilder]: Removed 41 assue(true) statements. [2018-11-23 08:21:08,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:08 BoogieIcfgContainer [2018-11-23 08:21:08,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:21:08,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 08:21:08,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 08:21:08,961 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 08:21:08,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:21:07" (1/3) ... [2018-11-23 08:21:08,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a428224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:21:08, skipping insertion in model container [2018-11-23 08:21:08,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:08" (2/3) ... [2018-11-23 08:21:08,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a428224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:21:08, skipping insertion in model container [2018-11-23 08:21:08,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:08" (3/3) ... [2018-11-23 08:21:08,963 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-23 08:21:08,969 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 08:21:08,973 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 08:21:08,982 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 08:21:09,000 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 08:21:09,000 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 08:21:09,001 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 08:21:09,001 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:21:09,001 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:21:09,001 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 08:21:09,001 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:21:09,001 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 08:21:09,014 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2018-11-23 08:21:09,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 08:21:09,019 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:09,020 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:09,022 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:09,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:09,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1597118822, now seen corresponding path program 1 times [2018-11-23 08:21:09,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:21:09,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:09,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:09,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:09,060 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:21:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:21:09,120 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:21:09,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 08:21:09,121 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:21:09,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 08:21:09,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 08:21:09,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 08:21:09,137 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2018-11-23 08:21:09,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:21:09,168 INFO L93 Difference]: Finished difference Result 280 states and 451 transitions. [2018-11-23 08:21:09,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 08:21:09,170 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-23 08:21:09,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:21:09,176 INFO L225 Difference]: With dead ends: 280 [2018-11-23 08:21:09,176 INFO L226 Difference]: Without dead ends: 130 [2018-11-23 08:21:09,179 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 08:21:09,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-11-23 08:21:09,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-11-23 08:21:09,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-11-23 08:21:09,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2018-11-23 08:21:09,208 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 14 [2018-11-23 08:21:09,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:21:09,208 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2018-11-23 08:21:09,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 08:21:09,208 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2018-11-23 08:21:09,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 08:21:09,209 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:09,209 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:09,209 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:09,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:09,210 INFO L82 PathProgramCache]: Analyzing trace with hash -427313062, now seen corresponding path program 1 times [2018-11-23 08:21:09,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:21:09,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:09,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:09,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:09,212 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:21:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:21:09,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:21:09,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 08:21:09,314 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:21:09,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 08:21:09,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 08:21:09,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 08:21:09,316 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 5 states. [2018-11-23 08:21:09,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:21:09,431 INFO L93 Difference]: Finished difference Result 132 states and 152 transitions. [2018-11-23 08:21:09,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 08:21:09,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2018-11-23 08:21:09,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:21:09,433 INFO L225 Difference]: With dead ends: 132 [2018-11-23 08:21:09,433 INFO L226 Difference]: Without dead ends: 129 [2018-11-23 08:21:09,434 INFO L631 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 [2018-11-23 08:21:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-11-23 08:21:09,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-11-23 08:21:09,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-11-23 08:21:09,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2018-11-23 08:21:09,443 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 34 [2018-11-23 08:21:09,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:21:09,444 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2018-11-23 08:21:09,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 08:21:09,445 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2018-11-23 08:21:09,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 08:21:09,445 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:09,445 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:09,446 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:09,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:09,446 INFO L82 PathProgramCache]: Analyzing trace with hash -30225678, now seen corresponding path program 1 times [2018-11-23 08:21:09,446 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:21:09,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:09,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:09,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:09,448 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:21:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:21:09,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:21:09,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-23 08:21:09,693 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:21:09,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 08:21:09,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 08:21:09,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2018-11-23 08:21:09,694 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 14 states. [2018-11-23 08:21:10,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:21:10,647 INFO L93 Difference]: Finished difference Result 229 states and 270 transitions. [2018-11-23 08:21:10,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 08:21:10,648 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2018-11-23 08:21:10,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:21:10,650 INFO L225 Difference]: With dead ends: 229 [2018-11-23 08:21:10,650 INFO L226 Difference]: Without dead ends: 223 [2018-11-23 08:21:10,651 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2018-11-23 08:21:10,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-11-23 08:21:10,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 198. [2018-11-23 08:21:10,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-11-23 08:21:10,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 236 transitions. [2018-11-23 08:21:10,668 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 236 transitions. Word has length 37 [2018-11-23 08:21:10,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:21:10,668 INFO L480 AbstractCegarLoop]: Abstraction has 198 states and 236 transitions. [2018-11-23 08:21:10,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 08:21:10,668 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 236 transitions. [2018-11-23 08:21:10,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 08:21:10,669 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:10,669 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:10,669 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:10,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:10,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1274473543, now seen corresponding path program 1 times [2018-11-23 08:21:10,670 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:21:10,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:10,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:10,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:10,671 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:21:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:21:11,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:21:11,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-23 08:21:11,012 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:21:11,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 08:21:11,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 08:21:11,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2018-11-23 08:21:11,012 INFO L87 Difference]: Start difference. First operand 198 states and 236 transitions. Second operand 17 states. [2018-11-23 08:21:12,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:21:12,360 INFO L93 Difference]: Finished difference Result 321 states and 388 transitions. [2018-11-23 08:21:12,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 08:21:12,362 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 40 [2018-11-23 08:21:12,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:21:12,364 INFO L225 Difference]: With dead ends: 321 [2018-11-23 08:21:12,364 INFO L226 Difference]: Without dead ends: 318 [2018-11-23 08:21:12,365 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2018-11-23 08:21:12,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2018-11-23 08:21:12,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 290. [2018-11-23 08:21:12,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-11-23 08:21:12,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2018-11-23 08:21:12,405 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 40 [2018-11-23 08:21:12,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:21:12,405 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2018-11-23 08:21:12,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 08:21:12,405 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2018-11-23 08:21:12,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 08:21:12,406 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:12,406 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:12,406 INFO L423 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:12,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:12,407 INFO L82 PathProgramCache]: Analyzing trace with hash 129254594, now seen corresponding path program 1 times [2018-11-23 08:21:12,407 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:21:12,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:12,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:12,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:12,408 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:21:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:12,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:21:12,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:21:12,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-23 08:21:12,784 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:21:12,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 08:21:12,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 08:21:12,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2018-11-23 08:21:12,785 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 17 states. [2018-11-23 08:21:14,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:21:14,143 INFO L93 Difference]: Finished difference Result 324 states and 392 transitions. [2018-11-23 08:21:14,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-23 08:21:14,144 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 43 [2018-11-23 08:21:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:21:14,146 INFO L225 Difference]: With dead ends: 324 [2018-11-23 08:21:14,146 INFO L226 Difference]: Without dead ends: 321 [2018-11-23 08:21:14,147 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=714, Unknown=0, NotChecked=0, Total=870 [2018-11-23 08:21:14,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2018-11-23 08:21:14,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 290. [2018-11-23 08:21:14,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-11-23 08:21:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 352 transitions. [2018-11-23 08:21:14,177 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 352 transitions. Word has length 43 [2018-11-23 08:21:14,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:21:14,177 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 352 transitions. [2018-11-23 08:21:14,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 08:21:14,177 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 352 transitions. [2018-11-23 08:21:14,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 08:21:14,178 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:14,178 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:14,178 INFO L423 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:14,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:14,179 INFO L82 PathProgramCache]: Analyzing trace with hash 2147132914, now seen corresponding path program 1 times [2018-11-23 08:21:14,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:21:14,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:14,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:14,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:14,180 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:21:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:21:14,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:21:14,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-11-23 08:21:14,779 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:21:14,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 08:21:14,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 08:21:14,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2018-11-23 08:21:14,780 INFO L87 Difference]: Start difference. First operand 290 states and 352 transitions. Second operand 20 states. [2018-11-23 08:21:16,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:21:16,488 INFO L93 Difference]: Finished difference Result 319 states and 384 transitions. [2018-11-23 08:21:16,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-23 08:21:16,489 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 46 [2018-11-23 08:21:16,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:21:16,490 INFO L225 Difference]: With dead ends: 319 [2018-11-23 08:21:16,491 INFO L226 Difference]: Without dead ends: 316 [2018-11-23 08:21:16,491 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2018-11-23 08:21:16,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2018-11-23 08:21:16,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 290. [2018-11-23 08:21:16,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-11-23 08:21:16,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 351 transitions. [2018-11-23 08:21:16,511 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 351 transitions. Word has length 46 [2018-11-23 08:21:16,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:21:16,511 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 351 transitions. [2018-11-23 08:21:16,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 08:21:16,512 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 351 transitions. [2018-11-23 08:21:16,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-23 08:21:16,512 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:16,512 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:16,513 INFO L423 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:16,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:16,513 INFO L82 PathProgramCache]: Analyzing trace with hash 117297583, now seen corresponding path program 1 times [2018-11-23 08:21:16,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:21:16,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:16,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:16,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:16,514 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:21:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:16,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:21:16,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:21:16,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-23 08:21:16,976 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:21:16,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 08:21:16,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 08:21:16,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2018-11-23 08:21:16,977 INFO L87 Difference]: Start difference. First operand 290 states and 351 transitions. Second operand 18 states. [2018-11-23 08:21:18,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:21:18,600 INFO L93 Difference]: Finished difference Result 318 states and 382 transitions. [2018-11-23 08:21:18,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-23 08:21:18,603 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 49 [2018-11-23 08:21:18,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:21:18,604 INFO L225 Difference]: With dead ends: 318 [2018-11-23 08:21:18,604 INFO L226 Difference]: Without dead ends: 315 [2018-11-23 08:21:18,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2018-11-23 08:21:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2018-11-23 08:21:18,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 290. [2018-11-23 08:21:18,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-11-23 08:21:18,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 350 transitions. [2018-11-23 08:21:18,623 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 350 transitions. Word has length 49 [2018-11-23 08:21:18,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:21:18,623 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 350 transitions. [2018-11-23 08:21:18,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 08:21:18,624 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 350 transitions. [2018-11-23 08:21:18,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 08:21:18,624 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:18,624 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:18,625 INFO L423 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:18,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:18,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1848170814, now seen corresponding path program 1 times [2018-11-23 08:21:18,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:21:18,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:18,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:18,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:18,627 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:21:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:19,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:21:19,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:21:19,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-23 08:21:19,031 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:21:19,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 08:21:19,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 08:21:19,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-11-23 08:21:19,032 INFO L87 Difference]: Start difference. First operand 290 states and 350 transitions. Second operand 18 states. [2018-11-23 08:21:20,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:21:20,327 INFO L93 Difference]: Finished difference Result 316 states and 378 transitions. [2018-11-23 08:21:20,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-23 08:21:20,328 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 52 [2018-11-23 08:21:20,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:21:20,329 INFO L225 Difference]: With dead ends: 316 [2018-11-23 08:21:20,329 INFO L226 Difference]: Without dead ends: 313 [2018-11-23 08:21:20,330 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=239, Invalid=817, Unknown=0, NotChecked=0, Total=1056 [2018-11-23 08:21:20,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-11-23 08:21:20,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 290. [2018-11-23 08:21:20,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-11-23 08:21:20,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 349 transitions. [2018-11-23 08:21:20,352 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 349 transitions. Word has length 52 [2018-11-23 08:21:20,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:21:20,353 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 349 transitions. [2018-11-23 08:21:20,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 08:21:20,353 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 349 transitions. [2018-11-23 08:21:20,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-23 08:21:20,353 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:20,354 INFO L402 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] [2018-11-23 08:21:20,354 INFO L423 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:20,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:20,354 INFO L82 PathProgramCache]: Analyzing trace with hash 2097711328, now seen corresponding path program 1 times [2018-11-23 08:21:20,354 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:21:20,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:20,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:20,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:21:20,355 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:21:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:21,237 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 08:21:21,237 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:21:21,237 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 08:21:21,237 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 62 with the following transitions: [2018-11-23 08:21:21,239 INFO L202 CegarAbsIntRunner]: [0], [1], [54], [56], [58], [61], [63], [67], [83], [86], [87], [93], [102], [106], [113], [119], [123], [130], [133], [396], [398], [399], [403], [408], [410], [415], [419], [424], [433], [434], [435], [443], [444], [453], [483], [484], [485], [486], [487], [489], [490] [2018-11-23 08:21:21,262 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 08:21:21,262 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 08:21:21,383 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 08:21:21,384 INFO L272 AbstractInterpreter]: Visited 41 different actions 41 times. Never merged. Never widened. Performed 300 root evaluator evaluations with a maximum evaluation depth of 6. Performed 300 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 30 variables. [2018-11-23 08:21:21,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:21,391 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 08:21:21,392 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:21:21,392 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/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 [2018-11-23 08:21:21,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:21,404 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 08:21:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:21,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:21:21,494 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-23 08:21:21,511 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:21,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 08:21:21,544 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-23 08:21:21,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 08:21:21,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 08:21:21,575 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:55 [2018-11-23 08:21:21,636 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2018-11-23 08:21:21,637 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,668 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:21,669 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:21,669 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2018-11-23 08:21:21,670 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,714 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-11-23 08:21:21,716 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-23 08:21:21,716 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,725 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,752 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-11-23 08:21:21,754 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-23 08:21:21,754 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,761 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,796 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2018-11-23 08:21:21,801 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-23 08:21:21,801 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,816 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-11-23 08:21:21,850 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-23 08:21:21,850 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,863 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,881 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:21,881 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:73, output treesize:13 [2018-11-23 08:21:22,128 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:22,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-11-23 08:21:22,129 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,141 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-11-23 08:21:22,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-23 08:21:22,144 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,146 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,168 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-11-23 08:21:22,170 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-11-23 08:21:22,170 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,172 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 08:21:22,182 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:51, output treesize:15 [2018-11-23 08:21:22,393 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 48 [2018-11-23 08:21:22,427 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 08:21:22,428 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,508 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-23 08:21:22,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-11-23 08:21:22,525 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:22,526 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-11-23 08:21:22,527 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,541 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,599 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:22,600 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2018-11-23 08:21:22,603 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:22,605 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 46 [2018-11-23 08:21:22,605 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,615 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,660 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 34 [2018-11-23 08:21:22,663 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:22,666 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:22,667 INFO L478 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 [2018-11-23 08:21:22,667 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,675 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:22,719 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 55 [2018-11-23 08:21:22,920 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 08:21:22,921 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_12 __list_add_~new.offset |__list_add_#in~next.base|) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:208) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:142) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) 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:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 08:21:22,923 INFO L168 Benchmark]: Toolchain (without parser) took 14981.95 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 347.6 MB). Free memory was 956.6 MB in the beginning and 1.0 GB in the end (delta: -63.3 MB). Peak memory consumption was 284.3 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:22,924 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:21:22,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:22,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:22,925 INFO L168 Benchmark]: Boogie Preprocessor took 39.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:22,926 INFO L168 Benchmark]: RCFGBuilder took 467.02 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: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:22,926 INFO L168 Benchmark]: TraceAbstraction took 13964.44 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 215.5 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24.6 MB). Peak memory consumption was 240.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:22,931 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 478.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 467.02 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: 46.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13964.44 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 215.5 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24.6 MB). Peak memory consumption was 240.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_12 __list_add_~new.offset |__list_add_#in~next.base|) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_12 __list_add_~new.offset |__list_add_#in~next.base|): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 08:21:24,394 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:21:24,395 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:21:24,403 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:21:24,403 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:21:24,404 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:21:24,404 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:21:24,405 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:21:24,406 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:21:24,407 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:21:24,407 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:21:24,407 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:21:24,408 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:21:24,409 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:21:24,409 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:21:24,410 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:21:24,411 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:21:24,412 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:21:24,413 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:21:24,415 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:21:24,415 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:21:24,416 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:21:24,418 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:21:24,419 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:21:24,419 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:21:24,419 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:21:24,420 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:21:24,420 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:21:24,421 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:21:24,422 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:21:24,423 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:21:24,423 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:21:24,423 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:21:24,423 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:21:24,424 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:21:24,424 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:21:24,425 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 08:21:24,435 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:21:24,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:21:24,436 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 08:21:24,436 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 08:21:24,436 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 08:21:24,437 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 08:21:24,437 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 08:21:24,437 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 08:21:24,437 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 08:21:24,437 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 08:21:24,438 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:21:24,439 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 08:21:24,439 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 08:21:24,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:21:24,439 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 08:21:24,439 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 08:21:24,439 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 08:21:24,439 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 08:21:24,440 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 08:21:24,440 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 08:21:24,440 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:21:24,440 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:21:24,440 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 08:21:24,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:21:24,440 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:21:24,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 08:21:24,441 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 08:21:24,441 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:21:24,441 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:21:24,441 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 08:21:24,441 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 08:21:24,441 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 08:21:24,441 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 08:21:24,442 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 08:21:24,442 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 08:21:24,444 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_02b40d28-7876-4280-9c2e-107a38d26906/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 -> 0e11c684160c36739b32009d12dfc0b40146d3c7 [2018-11-23 08:21:24,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:21:24,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:21:24,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:21:24,490 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:21:24,490 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:21:24,491 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-23 08:21:24,532 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/data/5d216c9cd/ce8fbef55bea4174a0ab950e6a521705/FLAGe89d6fff9 [2018-11-23 08:21:24,915 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:21:24,916 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-23 08:21:24,926 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/data/5d216c9cd/ce8fbef55bea4174a0ab950e6a521705/FLAGe89d6fff9 [2018-11-23 08:21:25,299 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/bin-2019/utaipan/data/5d216c9cd/ce8fbef55bea4174a0ab950e6a521705 [2018-11-23 08:21:25,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:21:25,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:21:25,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:21:25,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:21:25,306 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:21:25,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ec5c604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25, skipping insertion in model container [2018-11-23 08:21:25,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:21:25,353 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:21:25,690 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:21:25,701 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:21:25,789 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:21:25,860 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:21:25,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25 WrapperNode [2018-11-23 08:21:25,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:21:25,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:21:25,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:21:25,861 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:21:25,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:21:25,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:21:25,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:21:25,890 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:21:25,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (1/1) ... [2018-11-23 08:21:25,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:21:25,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:21:25,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:21:25,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:21:25,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/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 [2018-11-23 08:21:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 08:21:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2018-11-23 08:21:25,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2018-11-23 08:21:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2018-11-23 08:21:25,956 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-11-23 08:21:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-11-23 08:21:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-11-23 08:21:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 08:21:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 08:21:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 08:21:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2018-11-23 08:21:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2018-11-23 08:21:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 08:21:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 08:21:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 08:21:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2018-11-23 08:21:25,958 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-11-23 08:21:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2018-11-23 08:21:25,958 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-11-23 08:21:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2018-11-23 08:21:25,958 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2018-11-23 08:21:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 08:21:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-23 08:21:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-23 08:21:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-11-23 08:21:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-11-23 08:21:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2018-11-23 08:21:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2018-11-23 08:21:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 08:21:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 08:21:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 08:21:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-23 08:21:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-23 08:21:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2018-11-23 08:21:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2018-11-23 08:21:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:21:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:21:26,469 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:21:26,469 INFO L280 CfgBuilder]: Removed 41 assue(true) statements. [2018-11-23 08:21:26,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:26 BoogieIcfgContainer [2018-11-23 08:21:26,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:21:26,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 08:21:26,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 08:21:26,473 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 08:21:26,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:21:25" (1/3) ... [2018-11-23 08:21:26,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb6fe9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:21:26, skipping insertion in model container [2018-11-23 08:21:26,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:21:25" (2/3) ... [2018-11-23 08:21:26,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb6fe9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:21:26, skipping insertion in model container [2018-11-23 08:21:26,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:26" (3/3) ... [2018-11-23 08:21:26,475 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-23 08:21:26,482 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 08:21:26,487 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 08:21:26,497 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 08:21:26,517 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 08:21:26,517 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 08:21:26,517 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 08:21:26,517 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 08:21:26,517 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:21:26,518 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:21:26,518 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 08:21:26,518 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:21:26,518 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 08:21:26,533 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2018-11-23 08:21:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 08:21:26,537 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:26,538 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:26,539 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:26,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:26,543 INFO L82 PathProgramCache]: Analyzing trace with hash 923953062, now seen corresponding path program 1 times [2018-11-23 08:21:26,546 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:21:26,546 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/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 [2018-11-23 08:21:26,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:26,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:21:26,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:21:26,625 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 08:21:26,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:21:26,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 08:21:26,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 08:21:26,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 08:21:26,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 08:21:26,642 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2018-11-23 08:21:26,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:21:26,670 INFO L93 Difference]: Finished difference Result 276 states and 447 transitions. [2018-11-23 08:21:26,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 08:21:26,671 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-23 08:21:26,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:21:26,677 INFO L225 Difference]: With dead ends: 276 [2018-11-23 08:21:26,677 INFO L226 Difference]: Without dead ends: 128 [2018-11-23 08:21:26,681 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 08:21:26,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-11-23 08:21:26,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-11-23 08:21:26,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-11-23 08:21:26,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2018-11-23 08:21:26,716 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 14 [2018-11-23 08:21:26,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:21:26,716 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2018-11-23 08:21:26,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 08:21:26,716 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2018-11-23 08:21:26,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 08:21:26,717 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:26,717 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:26,717 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:26,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:26,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1064303807, now seen corresponding path program 1 times [2018-11-23 08:21:26,718 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:21:26,719 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/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 [2018-11-23 08:21:26,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:26,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:21:26,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:21:26,839 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (3)] Exception during sending of exit command (exit): Stream closed [2018-11-23 08:21:26,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:21:26,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 08:21:26,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 08:21:26,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 08:21:26,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 08:21:26,842 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand 5 states. [2018-11-23 08:21:27,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:21:27,000 INFO L93 Difference]: Finished difference Result 130 states and 150 transitions. [2018-11-23 08:21:27,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 08:21:27,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-11-23 08:21:27,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:21:27,002 INFO L225 Difference]: With dead ends: 130 [2018-11-23 08:21:27,002 INFO L226 Difference]: Without dead ends: 127 [2018-11-23 08:21:27,003 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:21:27,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-11-23 08:21:27,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-11-23 08:21:27,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-11-23 08:21:27,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2018-11-23 08:21:27,017 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 32 [2018-11-23 08:21:27,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:21:27,019 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2018-11-23 08:21:27,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 08:21:27,019 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2018-11-23 08:21:27,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 08:21:27,020 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:21:27,020 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:21:27,021 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:21:27,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:21:27,021 INFO L82 PathProgramCache]: Analyzing trace with hash 996272299, now seen corresponding path program 1 times [2018-11-23 08:21:27,021 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 08:21:27,022 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02b40d28-7876-4280-9c2e-107a38d26906/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 [2018-11-23 08:21:27,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:21:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:21:27,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:21:27,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-23 08:21:27,160 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:27,167 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 08:21:27,168 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-23 08:21:27,184 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 08:21:27,201 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 08:21:27,201 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:22, output treesize:45 [2018-11-23 08:21:27,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2018-11-23 08:21:27,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 08:21:27,236 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:27,241 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:27,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2018-11-23 08:21:27,263 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 08:21:27,263 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:27,268 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:27,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 08:21:27,280 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:49, output treesize:31 [2018-11-23 08:21:27,304 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:27,305 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:27,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 08:21:27,306 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:27,321 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-11-23 08:21:27,322 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:27,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:27,330 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:7 [2018-11-23 08:21:27,397 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 48 [2018-11-23 08:21:27,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 08:21:27,505 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:27,682 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 53 [2018-11-23 08:21:27,691 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 41 [2018-11-23 08:21:27,703 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:27,705 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:27,720 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 44 [2018-11-23 08:21:27,721 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-23 08:21:27,788 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 08:21:28,136 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2018-11-23 08:21:28,143 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:28,148 INFO L478 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 [2018-11-23 08:21:28,148 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:28,179 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:28,698 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 50 [2018-11-23 08:21:28,736 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 52 [2018-11-23 08:21:28,748 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:28,766 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 69 [2018-11-23 08:21:28,767 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-11-23 08:21:28,890 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:28,891 INFO L478 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 44 treesize of output 53 [2018-11-23 08:21:28,891 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:28,991 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 08:21:29,193 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2018-11-23 08:21:29,193 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:29,364 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 08:21:29,778 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2018-11-23 08:21:29,782 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 08:21:29,783 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:29,809 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:30,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 53 [2018-11-23 08:21:30,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 41 [2018-11-23 08:21:30,157 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:30,267 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:30,420 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 08:21:30,470 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 58 [2018-11-23 08:21:30,477 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2018-11-23 08:21:30,482 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:30,483 INFO L478 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 [2018-11-23 08:21:30,483 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:30,511 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:30,927 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 08:21:30,928 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 46 [2018-11-23 08:21:30,944 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 08:21:30,945 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 43 [2018-11-23 08:21:30,945 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 08:21:30,973 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 08:21:31,287 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 55 [2018-11-23 08:21:31,489 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 08:21:31,489 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_14 __list_add_~new.offset __list_add_~next.base) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:210) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:142) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 08:21:31,492 INFO L168 Benchmark]: Toolchain (without parser) took 6190.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 285.4 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:31,493 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-23 08:21:31,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -133.9 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:31,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:31,494 INFO L168 Benchmark]: Boogie Preprocessor took 33.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:31,495 INFO L168 Benchmark]: RCFGBuilder took 545.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:31,495 INFO L168 Benchmark]: TraceAbstraction took 5021.15 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 75.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -109.6 MB). Peak memory consumption was 237.5 MB. Max. memory is 11.5 GB. [2018-11-23 08:21:31,498 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 557.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -133.9 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 545.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5021.15 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 75.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -109.6 MB). Peak memory consumption was 237.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_14 __list_add_~new.offset __list_add_~next.base) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_14 __list_add_~new.offset __list_add_~next.base): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...