./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label50_true-unreach-call_false-termination.c --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_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label50_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/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 84719fa7c370f946c431f46475b54ba30487ebc7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 23:05:44,854 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:05:44,856 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:05:44,863 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:05:44,864 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:05:44,864 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:05:44,865 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:05:44,866 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:05:44,867 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:05:44,868 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:05:44,868 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:05:44,869 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:05:44,869 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:05:44,870 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:05:44,870 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:05:44,871 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:05:44,871 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:05:44,873 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:05:44,874 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:05:44,875 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:05:44,875 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:05:44,876 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:05:44,877 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:05:44,878 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:05:44,878 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:05:44,878 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:05:44,879 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:05:44,879 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:05:44,880 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:05:44,881 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:05:44,881 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:05:44,881 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:05:44,881 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:05:44,881 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:05:44,882 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:05:44,882 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:05:44,883 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 23:05:44,891 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:05:44,892 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:05:44,892 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 23:05:44,892 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 23:05:44,892 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 23:05:44,893 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 23:05:44,893 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 23:05:44,893 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 23:05:44,893 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 23:05:44,893 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 23:05:44,893 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 23:05:44,893 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 23:05:44,893 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 23:05:44,894 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:05:44,894 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 23:05:44,894 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 23:05:44,894 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 23:05:44,894 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:05:44,895 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 23:05:44,895 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 23:05:44,895 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 23:05:44,895 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 23:05:44,895 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 23:05:44,895 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:05:44,895 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 23:05:44,896 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:05:44,896 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 23:05:44,896 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 23:05:44,896 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 23:05:44,896 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 23:05:44,896 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:05:44,896 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 23:05:44,897 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 23:05:44,897 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 23:05:44,897 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 23:05:44,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 23:05:44,897 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 23:05:44,897 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_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/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 -> 84719fa7c370f946c431f46475b54ba30487ebc7 [2018-11-22 23:05:44,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:05:44,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:05:44,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:05:44,932 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:05:44,932 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:05:44,932 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label50_true-unreach-call_false-termination.c [2018-11-22 23:05:44,967 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/data/8dfd2719e/50799f8c09dc43bf8d988d6cd8149cd4/FLAGc390ff561 [2018-11-22 23:05:45,312 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:05:45,312 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/sv-benchmarks/c/eca-rers2012/Problem14_label50_true-unreach-call_false-termination.c [2018-11-22 23:05:45,322 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/data/8dfd2719e/50799f8c09dc43bf8d988d6cd8149cd4/FLAGc390ff561 [2018-11-22 23:05:45,333 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/data/8dfd2719e/50799f8c09dc43bf8d988d6cd8149cd4 [2018-11-22 23:05:45,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:05:45,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 23:05:45,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:05:45,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:05:45,341 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:05:45,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb4fcbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45, skipping insertion in model container [2018-11-22 23:05:45,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:05:45,384 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:05:45,647 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:05:45,650 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:05:45,740 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:05:45,753 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:05:45,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45 WrapperNode [2018-11-22 23:05:45,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:05:45,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 23:05:45,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 23:05:45,754 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 23:05:45,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 23:05:45,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:05:45,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:05:45,836 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:05:45,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (1/1) ... [2018-11-22 23:05:45,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:05:45,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:05:45,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:05:45,893 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:05:45,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/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 [2018-11-22 23:05:45,939 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-22 23:05:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 23:05:45,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 23:05:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-22 23:05:45,940 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-22 23:05:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:05:45,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:05:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 23:05:45,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 23:05:46,788 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:05:46,788 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-22 23:05:46,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:05:46 BoogieIcfgContainer [2018-11-22 23:05:46,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:05:46,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 23:05:46,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 23:05:46,792 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 23:05:46,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:05:45" (1/3) ... [2018-11-22 23:05:46,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cbf9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:05:46, skipping insertion in model container [2018-11-22 23:05:46,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:45" (2/3) ... [2018-11-22 23:05:46,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cbf9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:05:46, skipping insertion in model container [2018-11-22 23:05:46,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:05:46" (3/3) ... [2018-11-22 23:05:46,794 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label50_true-unreach-call_false-termination.c [2018-11-22 23:05:46,801 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 23:05:46,806 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 23:05:46,815 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 23:05:46,837 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 23:05:46,838 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 23:05:46,838 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 23:05:46,838 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 23:05:46,838 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 23:05:46,838 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 23:05:46,838 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 23:05:46,838 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 23:05:46,855 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-11-22 23:05:46,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-22 23:05:46,860 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:05:46,861 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] [2018-11-22 23:05:46,863 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:05:46,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:05:46,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1557712066, now seen corresponding path program 1 times [2018-11-22 23:05:46,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:05:46,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:05:46,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:05:46,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:05:46,899 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:05:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:05:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:05:47,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:05:47,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 23:05:47,071 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:05:47,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 23:05:47,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 23:05:47,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:05:47,084 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2018-11-22 23:05:47,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:05:47,823 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2018-11-22 23:05:47,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 23:05:47,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2018-11-22 23:05:47,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:05:47,836 INFO L225 Difference]: With dead ends: 688 [2018-11-22 23:05:47,836 INFO L226 Difference]: Without dead ends: 432 [2018-11-22 23:05:47,841 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 23:05:47,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2018-11-22 23:05:47,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2018-11-22 23:05:47,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-11-22 23:05:47,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 763 transitions. [2018-11-22 23:05:47,892 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 763 transitions. Word has length 43 [2018-11-22 23:05:47,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:05:47,893 INFO L480 AbstractCegarLoop]: Abstraction has 432 states and 763 transitions. [2018-11-22 23:05:47,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 23:05:47,893 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 763 transitions. [2018-11-22 23:05:47,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-22 23:05:47,896 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:05:47,897 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:05:47,897 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:05:47,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:05:47,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1883069890, now seen corresponding path program 1 times [2018-11-22 23:05:47,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:05:47,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:05:47,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:05:47,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:05:47,899 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:05:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:05:48,059 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:05:48,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:05:48,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 23:05:48,060 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:05:48,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:05:48,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:05:48,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:05:48,062 INFO L87 Difference]: Start difference. First operand 432 states and 763 transitions. Second operand 6 states. [2018-11-22 23:05:48,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:05:48,735 INFO L93 Difference]: Finished difference Result 1056 states and 1891 transitions. [2018-11-22 23:05:48,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 23:05:48,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-11-22 23:05:48,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:05:48,739 INFO L225 Difference]: With dead ends: 1056 [2018-11-22 23:05:48,739 INFO L226 Difference]: Without dead ends: 630 [2018-11-22 23:05:48,740 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:05:48,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2018-11-22 23:05:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 622. [2018-11-22 23:05:48,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2018-11-22 23:05:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1016 transitions. [2018-11-22 23:05:48,765 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1016 transitions. Word has length 129 [2018-11-22 23:05:48,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:05:48,765 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 1016 transitions. [2018-11-22 23:05:48,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:05:48,765 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1016 transitions. [2018-11-22 23:05:48,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-22 23:05:48,768 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:05:48,768 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:05:48,768 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:05:48,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:05:48,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1079220531, now seen corresponding path program 1 times [2018-11-22 23:05:48,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:05:48,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:05:48,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:05:48,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:05:48,770 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:05:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:05:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:05:48,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 23:05:48,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 23:05:48,865 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:05:48,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 23:05:48,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 23:05:48,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-22 23:05:48,866 INFO L87 Difference]: Start difference. First operand 622 states and 1016 transitions. Second operand 4 states. [2018-11-22 23:05:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:05:49,832 INFO L93 Difference]: Finished difference Result 2340 states and 3998 transitions. [2018-11-22 23:05:49,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 23:05:49,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2018-11-22 23:05:49,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:05:49,841 INFO L225 Difference]: With dead ends: 2340 [2018-11-22 23:05:49,841 INFO L226 Difference]: Without dead ends: 1724 [2018-11-22 23:05:49,845 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-22 23:05:49,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2018-11-22 23:05:49,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1724. [2018-11-22 23:05:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1724 states. [2018-11-22 23:05:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2659 transitions. [2018-11-22 23:05:49,886 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2659 transitions. Word has length 138 [2018-11-22 23:05:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:05:49,886 INFO L480 AbstractCegarLoop]: Abstraction has 1724 states and 2659 transitions. [2018-11-22 23:05:49,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 23:05:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2659 transitions. [2018-11-22 23:05:49,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-11-22 23:05:49,894 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:05:49,894 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-22 23:05:49,895 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:05:49,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:05:49,895 INFO L82 PathProgramCache]: Analyzing trace with hash 762391661, now seen corresponding path program 1 times [2018-11-22 23:05:49,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:05:49,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:05:49,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:05:49,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:05:49,896 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:05:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:05:50,623 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 145 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:05:50,624 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:05:50,624 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:05:50,624 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 275 with the following transitions: [2018-11-22 23:05:50,626 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:05:50,659 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:05:50,660 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:05:52,949 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:05:52,950 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Performed 1139 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1139 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-11-22 23:05:52,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:05:52,961 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:05:54,672 INFO L227 lantSequenceWeakener]: Weakened 265 states. On average, predicates are now at 77.71% of their original sizes. [2018-11-22 23:05:54,672 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:05:54,708 INFO L415 sIntCurrentIteration]: We unified 273 AI predicates to 273 [2018-11-22 23:05:54,708 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:05:54,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:05:54,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2018-11-22 23:05:54,709 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:05:54,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 23:05:54,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 23:05:54,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-22 23:05:54,711 INFO L87 Difference]: Start difference. First operand 1724 states and 2659 transitions. Second operand 6 states. [2018-11-22 23:06:06,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:06:06,064 INFO L93 Difference]: Finished difference Result 3625 states and 5610 transitions. [2018-11-22 23:06:06,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 23:06:06,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 274 [2018-11-22 23:06:06,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:06:06,072 INFO L225 Difference]: With dead ends: 3625 [2018-11-22 23:06:06,072 INFO L226 Difference]: Without dead ends: 1907 [2018-11-22 23:06:06,077 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 274 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-22 23:06:06,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2018-11-22 23:06:06,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1906. [2018-11-22 23:06:06,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1906 states. [2018-11-22 23:06:06,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2849 transitions. [2018-11-22 23:06:06,117 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2849 transitions. Word has length 274 [2018-11-22 23:06:06,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:06:06,118 INFO L480 AbstractCegarLoop]: Abstraction has 1906 states and 2849 transitions. [2018-11-22 23:06:06,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 23:06:06,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2849 transitions. [2018-11-22 23:06:06,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-11-22 23:06:06,126 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:06:06,126 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-22 23:06:06,126 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:06:06,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:06:06,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1515376597, now seen corresponding path program 1 times [2018-11-22 23:06:06,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:06:06,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:06:06,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:06:06,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:06:06,128 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:06:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:06:06,846 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 194 proven. 190 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-22 23:06:06,846 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:06:06,846 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:06:06,846 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 359 with the following transitions: [2018-11-22 23:06:06,846 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:06:06,849 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:06:06,849 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:06:09,953 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:06:09,953 INFO L272 AbstractInterpreter]: Visited 128 different actions 249 times. Merged at 3 different actions 3 times. Never widened. Performed 2357 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2357 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-22 23:06:09,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:06:09,961 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:06:11,602 INFO L227 lantSequenceWeakener]: Weakened 355 states. On average, predicates are now at 77.65% of their original sizes. [2018-11-22 23:06:11,602 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:06:11,702 INFO L415 sIntCurrentIteration]: We unified 357 AI predicates to 357 [2018-11-22 23:06:11,702 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:06:11,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:06:11,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-22 23:06:11,702 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:06:11,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 23:06:11,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 23:06:11,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:06:11,703 INFO L87 Difference]: Start difference. First operand 1906 states and 2849 transitions. Second operand 10 states. [2018-11-22 23:06:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:06:48,945 INFO L93 Difference]: Finished difference Result 4365 states and 6483 transitions. [2018-11-22 23:06:48,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-22 23:06:48,945 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 358 [2018-11-22 23:06:48,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:06:48,952 INFO L225 Difference]: With dead ends: 4365 [2018-11-22 23:06:48,952 INFO L226 Difference]: Without dead ends: 2279 [2018-11-22 23:06:48,956 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 366 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-22 23:06:48,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2018-11-22 23:06:48,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2278. [2018-11-22 23:06:48,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2278 states. [2018-11-22 23:06:48,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2278 states to 2278 states and 3244 transitions. [2018-11-22 23:06:48,990 INFO L78 Accepts]: Start accepts. Automaton has 2278 states and 3244 transitions. Word has length 358 [2018-11-22 23:06:48,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:06:48,990 INFO L480 AbstractCegarLoop]: Abstraction has 2278 states and 3244 transitions. [2018-11-22 23:06:48,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 23:06:48,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2278 states and 3244 transitions. [2018-11-22 23:06:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2018-11-22 23:06:48,997 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:06:48,997 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:06:48,998 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:06:48,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:06:48,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1036270406, now seen corresponding path program 1 times [2018-11-22 23:06:48,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:06:48,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:06:48,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:06:48,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:06:48,999 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:06:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:06:49,453 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 337 proven. 250 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-22 23:06:49,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:06:49,454 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:06:49,454 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 458 with the following transitions: [2018-11-22 23:06:49,454 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:06:49,457 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:06:49,457 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:06:52,316 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:06:52,316 INFO L272 AbstractInterpreter]: Visited 129 different actions 252 times. Merged at 4 different actions 4 times. Never widened. Performed 2349 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2349 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-22 23:06:52,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:06:52,325 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:06:53,937 INFO L227 lantSequenceWeakener]: Weakened 454 states. On average, predicates are now at 77.59% of their original sizes. [2018-11-22 23:06:53,937 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:06:53,989 INFO L415 sIntCurrentIteration]: We unified 456 AI predicates to 456 [2018-11-22 23:06:53,989 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:06:53,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:06:53,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-22 23:06:53,990 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:06:53,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 23:06:53,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 23:06:53,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:06:53,991 INFO L87 Difference]: Start difference. First operand 2278 states and 3244 transitions. Second operand 10 states. [2018-11-22 23:06:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:06:59,027 INFO L93 Difference]: Finished difference Result 4182 states and 6103 transitions. [2018-11-22 23:06:59,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-22 23:06:59,027 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 457 [2018-11-22 23:06:59,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:06:59,033 INFO L225 Difference]: With dead ends: 4182 [2018-11-22 23:06:59,034 INFO L226 Difference]: Without dead ends: 2092 [2018-11-22 23:06:59,039 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 464 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-22 23:06:59,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2018-11-22 23:06:59,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2090. [2018-11-22 23:06:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2018-11-22 23:06:59,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 3028 transitions. [2018-11-22 23:06:59,080 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 3028 transitions. Word has length 457 [2018-11-22 23:06:59,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:06:59,080 INFO L480 AbstractCegarLoop]: Abstraction has 2090 states and 3028 transitions. [2018-11-22 23:06:59,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 23:06:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 3028 transitions. [2018-11-22 23:06:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2018-11-22 23:06:59,092 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:06:59,092 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:06:59,092 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:06:59,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:06:59,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1555619278, now seen corresponding path program 1 times [2018-11-22 23:06:59,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:06:59,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:06:59,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:06:59,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:06:59,094 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:06:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:06:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 372 proven. 112 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2018-11-22 23:06:59,476 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:06:59,476 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:06:59,477 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 494 with the following transitions: [2018-11-22 23:06:59,477 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:06:59,479 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:06:59,479 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:07:05,984 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 23:07:05,984 INFO L272 AbstractInterpreter]: Visited 129 different actions 384 times. Merged at 6 different actions 17 times. Never widened. Performed 3780 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3780 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-22 23:07:05,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:05,985 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 23:07:06,875 INFO L227 lantSequenceWeakener]: Weakened 490 states. On average, predicates are now at 80.17% of their original sizes. [2018-11-22 23:07:06,875 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 23:07:06,917 INFO L415 sIntCurrentIteration]: We unified 492 AI predicates to 492 [2018-11-22 23:07:06,917 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 23:07:06,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 23:07:06,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-11-22 23:07:06,917 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 23:07:06,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 23:07:06,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 23:07:06,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 23:07:06,918 INFO L87 Difference]: Start difference. First operand 2090 states and 3028 transitions. Second operand 10 states. [2018-11-22 23:07:28,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:07:28,451 INFO L93 Difference]: Finished difference Result 4706 states and 7073 transitions. [2018-11-22 23:07:28,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-22 23:07:28,451 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 493 [2018-11-22 23:07:28,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:07:28,458 INFO L225 Difference]: With dead ends: 4706 [2018-11-22 23:07:28,458 INFO L226 Difference]: Without dead ends: 2988 [2018-11-22 23:07:28,464 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 503 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-22 23:07:28,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2018-11-22 23:07:28,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2787. [2018-11-22 23:07:28,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2787 states. [2018-11-22 23:07:28,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3923 transitions. [2018-11-22 23:07:28,517 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3923 transitions. Word has length 493 [2018-11-22 23:07:28,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:07:28,517 INFO L480 AbstractCegarLoop]: Abstraction has 2787 states and 3923 transitions. [2018-11-22 23:07:28,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 23:07:28,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3923 transitions. [2018-11-22 23:07:28,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2018-11-22 23:07:28,533 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:07:28,533 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:07:28,534 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:07:28,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:28,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1389153211, now seen corresponding path program 1 times [2018-11-22 23:07:28,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:07:28,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:28,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:28,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:28,535 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:07:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:29,317 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 373 proven. 329 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-22 23:07:29,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:07:29,317 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:07:29,317 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 561 with the following transitions: [2018-11-22 23:07:29,318 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:07:29,320 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:07:29,320 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:07:33,433 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:07:33,433 INFO L272 AbstractInterpreter]: Visited 190 different actions 755 times. Merged at 8 different actions 28 times. Widened at 1 different actions 1 times. Performed 8315 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8315 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-22 23:07:33,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:33,438 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:07:33,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:07:33,438 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/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 [2018-11-22 23:07:33,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:33,444 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:07:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:33,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 665 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-11-22 23:07:33,894 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:07:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 372 proven. 119 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2018-11-22 23:07:34,330 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:07:34,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-11-22 23:07:34,331 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:07:34,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-22 23:07:34,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-22 23:07:34,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-11-22 23:07:34,332 INFO L87 Difference]: Start difference. First operand 2787 states and 3923 transitions. Second operand 17 states. [2018-11-22 23:07:35,821 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2018-11-22 23:07:39,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:07:39,343 INFO L93 Difference]: Finished difference Result 6482 states and 9594 transitions. [2018-11-22 23:07:39,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-11-22 23:07:39,345 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 560 [2018-11-22 23:07:39,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:07:39,358 INFO L225 Difference]: With dead ends: 6482 [2018-11-22 23:07:39,358 INFO L226 Difference]: Without dead ends: 4067 [2018-11-22 23:07:39,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1210 GetRequests, 1149 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=797, Invalid=3109, Unknown=0, NotChecked=0, Total=3906 [2018-11-22 23:07:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4067 states. [2018-11-22 23:07:39,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4067 to 3964. [2018-11-22 23:07:39,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3964 states. [2018-11-22 23:07:39,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 5099 transitions. [2018-11-22 23:07:39,435 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 5099 transitions. Word has length 560 [2018-11-22 23:07:39,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:07:39,436 INFO L480 AbstractCegarLoop]: Abstraction has 3964 states and 5099 transitions. [2018-11-22 23:07:39,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-22 23:07:39,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 5099 transitions. [2018-11-22 23:07:39,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2018-11-22 23:07:39,444 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:07:39,445 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:07:39,445 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:07:39,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:39,445 INFO L82 PathProgramCache]: Analyzing trace with hash 329308914, now seen corresponding path program 1 times [2018-11-22 23:07:39,445 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:07:39,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:39,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,446 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:07:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:40,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 491 proven. 458 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-11-22 23:07:40,115 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:07:40,115 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:07:40,115 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 566 with the following transitions: [2018-11-22 23:07:40,115 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:07:40,117 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:07:40,117 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:07:47,416 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:07:47,416 INFO L272 AbstractInterpreter]: Visited 131 different actions 521 times. Merged at 8 different actions 30 times. Widened at 1 different actions 1 times. Performed 5242 root evaluator evaluations with a maximum evaluation depth of 22. Performed 5242 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-22 23:07:47,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:47,418 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:07:47,418 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:07:47,418 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:07:47,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:47,424 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:07:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:47,498 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 841 proven. 2 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2018-11-22 23:07:47,745 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:07:48,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 487 proven. 112 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2018-11-22 23:07:48,104 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:07:48,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-22 23:07:48,104 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:07:48,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-22 23:07:48,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-22 23:07:48,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-11-22 23:07:48,106 INFO L87 Difference]: Start difference. First operand 3964 states and 5099 transitions. Second operand 17 states. [2018-11-22 23:07:51,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:07:51,064 INFO L93 Difference]: Finished difference Result 8954 states and 12047 transitions. [2018-11-22 23:07:51,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-22 23:07:51,064 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 565 [2018-11-22 23:07:51,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:07:51,076 INFO L225 Difference]: With dead ends: 8954 [2018-11-22 23:07:51,076 INFO L226 Difference]: Without dead ends: 4259 [2018-11-22 23:07:51,092 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1190 GetRequests, 1142 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=536, Invalid=1816, Unknown=0, NotChecked=0, Total=2352 [2018-11-22 23:07:51,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4259 states. [2018-11-22 23:07:51,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4259 to 4145. [2018-11-22 23:07:51,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4145 states. [2018-11-22 23:07:51,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 4729 transitions. [2018-11-22 23:07:51,154 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 4729 transitions. Word has length 565 [2018-11-22 23:07:51,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:07:51,155 INFO L480 AbstractCegarLoop]: Abstraction has 4145 states and 4729 transitions. [2018-11-22 23:07:51,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-22 23:07:51,155 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 4729 transitions. [2018-11-22 23:07:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2018-11-22 23:07:51,161 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:07:51,162 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:07:51,162 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:07:51,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:51,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1527480881, now seen corresponding path program 2 times [2018-11-22 23:07:51,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:07:51,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:51,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:51,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:51,164 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:07:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 525 proven. 119 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2018-11-22 23:07:51,563 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:07:51,563 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:07:51,563 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-22 23:07:51,563 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-22 23:07:51,564 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:07:51,564 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:07:51,570 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-22 23:07:51,570 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-22 23:07:51,620 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-22 23:07:51,620 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-22 23:07:51,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:51,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 635 proven. 2 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-11-22 23:07:51,776 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:07:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 635 proven. 2 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-11-22 23:07:52,176 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:07:52,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-22 23:07:52,177 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:07:52,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 23:07:52,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 23:07:52,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-22 23:07:52,178 INFO L87 Difference]: Start difference. First operand 4145 states and 4729 transitions. Second operand 9 states. [2018-11-22 23:07:54,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:07:54,934 INFO L93 Difference]: Finished difference Result 15317 states and 20493 transitions. [2018-11-22 23:07:54,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-11-22 23:07:54,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 670 [2018-11-22 23:07:54,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:07:54,972 INFO L225 Difference]: With dead ends: 15317 [2018-11-22 23:07:54,972 INFO L226 Difference]: Without dead ends: 11544 [2018-11-22 23:07:54,991 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1413 GetRequests, 1368 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=388, Invalid=1774, Unknown=0, NotChecked=0, Total=2162 [2018-11-22 23:07:54,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11544 states. [2018-11-22 23:07:55,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11544 to 10842. [2018-11-22 23:07:55,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10842 states. [2018-11-22 23:07:55,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10842 states to 10842 states and 12400 transitions. [2018-11-22 23:07:55,133 INFO L78 Accepts]: Start accepts. Automaton has 10842 states and 12400 transitions. Word has length 670 [2018-11-22 23:07:55,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:07:55,133 INFO L480 AbstractCegarLoop]: Abstraction has 10842 states and 12400 transitions. [2018-11-22 23:07:55,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 23:07:55,134 INFO L276 IsEmpty]: Start isEmpty. Operand 10842 states and 12400 transitions. [2018-11-22 23:07:55,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2018-11-22 23:07:55,144 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:07:55,144 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:07:55,144 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:07:55,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:55,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1621433015, now seen corresponding path program 1 times [2018-11-22 23:07:55,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:07:55,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:55,145 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:55,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:55,146 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:07:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:55,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 580 proven. 196 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2018-11-22 23:07:55,549 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:07:55,549 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:07:55,549 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 757 with the following transitions: [2018-11-22 23:07:55,549 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:07:55,551 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:07:55,551 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:07:59,534 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:07:59,534 INFO L272 AbstractInterpreter]: Visited 192 different actions 765 times. Merged at 10 different actions 30 times. Never widened. Performed 8419 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8419 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-22 23:07:59,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:59,535 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:07:59,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:07:59,536 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:07:59,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:59,541 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:07:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:59,630 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 1253 proven. 2 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2018-11-22 23:07:59,817 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:08:00,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 580 proven. 196 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2018-11-22 23:08:00,124 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:08:00,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-22 23:08:00,124 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:08:00,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-22 23:08:00,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-22 23:08:00,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-22 23:08:00,126 INFO L87 Difference]: Start difference. First operand 10842 states and 12400 transitions. Second operand 7 states. [2018-11-22 23:08:01,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:08:01,372 INFO L93 Difference]: Finished difference Result 26442 states and 34755 transitions. [2018-11-22 23:08:01,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-22 23:08:01,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 756 [2018-11-22 23:08:01,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:08:01,457 INFO L225 Difference]: With dead ends: 26442 [2018-11-22 23:08:01,457 INFO L226 Difference]: Without dead ends: 15972 [2018-11-22 23:08:01,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1529 GetRequests, 1515 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-11-22 23:08:01,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15972 states. [2018-11-22 23:08:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15972 to 15311. [2018-11-22 23:08:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15311 states. [2018-11-22 23:08:01,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15311 states to 15311 states and 17736 transitions. [2018-11-22 23:08:01,860 INFO L78 Accepts]: Start accepts. Automaton has 15311 states and 17736 transitions. Word has length 756 [2018-11-22 23:08:01,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:08:01,861 INFO L480 AbstractCegarLoop]: Abstraction has 15311 states and 17736 transitions. [2018-11-22 23:08:01,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-22 23:08:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 15311 states and 17736 transitions. [2018-11-22 23:08:01,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2018-11-22 23:08:01,879 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:08:01,880 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:08:01,880 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:08:01,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:01,880 INFO L82 PathProgramCache]: Analyzing trace with hash -286101995, now seen corresponding path program 1 times [2018-11-22 23:08:01,880 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:08:01,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:01,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:01,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:01,881 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:08:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:03,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 625 proven. 1110 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2018-11-22 23:08:03,259 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:08:03,259 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:08:03,259 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 883 with the following transitions: [2018-11-22 23:08:03,260 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:08:03,261 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:08:03,261 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:08:07,344 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:08:07,344 INFO L272 AbstractInterpreter]: Visited 192 different actions 766 times. Merged at 10 different actions 31 times. Never widened. Performed 8392 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8392 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-22 23:08:07,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:07,345 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:08:07,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:08:07,345 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:08:07,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:07,351 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:08:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:07,449 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:07,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 1609 proven. 2 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2018-11-22 23:08:07,906 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:08:08,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 753 proven. 196 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2018-11-22 23:08:08,458 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:08:08,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2018-11-22 23:08:08,458 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:08:08,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-22 23:08:08,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-22 23:08:08,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-11-22 23:08:08,460 INFO L87 Difference]: Start difference. First operand 15311 states and 17736 transitions. Second operand 18 states. [2018-11-22 23:08:12,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:08:12,786 INFO L93 Difference]: Finished difference Result 34974 states and 42938 transitions. [2018-11-22 23:08:12,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-11-22 23:08:12,786 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 882 [2018-11-22 23:08:12,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:08:12,837 INFO L225 Difference]: With dead ends: 34974 [2018-11-22 23:08:12,837 INFO L226 Difference]: Without dead ends: 20035 [2018-11-22 23:08:12,899 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1866 GetRequests, 1796 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1454 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=972, Invalid=3998, Unknown=0, NotChecked=0, Total=4970 [2018-11-22 23:08:12,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20035 states. [2018-11-22 23:08:13,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20035 to 19557. [2018-11-22 23:08:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19557 states. [2018-11-22 23:08:13,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19557 states to 19557 states and 22867 transitions. [2018-11-22 23:08:13,238 INFO L78 Accepts]: Start accepts. Automaton has 19557 states and 22867 transitions. Word has length 882 [2018-11-22 23:08:13,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:08:13,238 INFO L480 AbstractCegarLoop]: Abstraction has 19557 states and 22867 transitions. [2018-11-22 23:08:13,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-22 23:08:13,239 INFO L276 IsEmpty]: Start isEmpty. Operand 19557 states and 22867 transitions. [2018-11-22 23:08:13,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 916 [2018-11-22 23:08:13,250 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:08:13,250 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:08:13,251 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:08:13,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:13,251 INFO L82 PathProgramCache]: Analyzing trace with hash 2076292566, now seen corresponding path program 1 times [2018-11-22 23:08:13,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:08:13,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:13,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:13,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:13,252 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:08:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:15,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 897 proven. 1195 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2018-11-22 23:08:15,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:08:15,158 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:08:15,158 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 916 with the following transitions: [2018-11-22 23:08:15,159 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:08:15,161 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:08:15,161 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:08:19,222 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:08:19,223 INFO L272 AbstractInterpreter]: Visited 193 different actions 770 times. Merged at 10 different actions 31 times. Never widened. Performed 8497 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8497 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 6 different actions. Largest state had 24 variables. [2018-11-22 23:08:19,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:19,225 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:08:19,225 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:08:19,225 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:08:19,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:19,231 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:08:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:19,331 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 1649 proven. 2 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2018-11-22 23:08:19,599 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:08:20,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 786 proven. 196 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2018-11-22 23:08:20,032 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:08:20,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 5, 5] total 27 [2018-11-22 23:08:20,032 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:08:20,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-22 23:08:20,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-22 23:08:20,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2018-11-22 23:08:20,034 INFO L87 Difference]: Start difference. First operand 19557 states and 22867 transitions. Second operand 25 states. [2018-11-22 23:08:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:08:27,629 INFO L93 Difference]: Finished difference Result 39622 states and 47230 transitions. [2018-11-22 23:08:27,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-11-22 23:08:27,630 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 915 [2018-11-22 23:08:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:08:27,673 INFO L225 Difference]: With dead ends: 39622 [2018-11-22 23:08:27,673 INFO L226 Difference]: Without dead ends: 19779 [2018-11-22 23:08:27,717 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1984 GetRequests, 1880 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3300 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1687, Invalid=9025, Unknown=0, NotChecked=0, Total=10712 [2018-11-22 23:08:27,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19779 states. [2018-11-22 23:08:27,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19779 to 19409. [2018-11-22 23:08:27,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19409 states. [2018-11-22 23:08:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19409 states to 19409 states and 21382 transitions. [2018-11-22 23:08:27,998 INFO L78 Accepts]: Start accepts. Automaton has 19409 states and 21382 transitions. Word has length 915 [2018-11-22 23:08:27,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:08:27,999 INFO L480 AbstractCegarLoop]: Abstraction has 19409 states and 21382 transitions. [2018-11-22 23:08:27,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-22 23:08:27,999 INFO L276 IsEmpty]: Start isEmpty. Operand 19409 states and 21382 transitions. [2018-11-22 23:08:28,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1139 [2018-11-22 23:08:28,011 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:08:28,011 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-22 23:08:28,011 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:08:28,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:28,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1661791935, now seen corresponding path program 1 times [2018-11-22 23:08:28,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:08:28,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:28,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:28,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:28,013 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:08:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:28,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3959 backedges. 1657 proven. 355 refuted. 0 times theorem prover too weak. 1947 trivial. 0 not checked. [2018-11-22 23:08:28,882 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:08:28,882 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:08:28,882 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1139 with the following transitions: [2018-11-22 23:08:28,882 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:08:28,884 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:08:28,885 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:08:32,985 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:08:32,985 INFO L272 AbstractInterpreter]: Visited 195 different actions 790 times. Merged at 12 different actions 43 times. Widened at 1 different actions 2 times. Performed 8722 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8722 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-22 23:08:32,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:32,993 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:08:32,993 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:08:32,993 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:08:32,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:32,999 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:08:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:33,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:33,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3959 backedges. 2442 proven. 6 refuted. 0 times theorem prover too weak. 1511 trivial. 0 not checked. [2018-11-22 23:08:33,548 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:08:34,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3959 backedges. 1657 proven. 359 refuted. 0 times theorem prover too weak. 1943 trivial. 0 not checked. [2018-11-22 23:08:34,266 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:08:34,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2018-11-22 23:08:34,266 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:08:34,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 23:08:34,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 23:08:34,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-11-22 23:08:34,267 INFO L87 Difference]: Start difference. First operand 19409 states and 21382 transitions. Second operand 9 states. [2018-11-22 23:08:35,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:08:35,935 INFO L93 Difference]: Finished difference Result 43070 states and 47961 transitions. [2018-11-22 23:08:35,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-22 23:08:35,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1138 [2018-11-22 23:08:35,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:08:35,966 INFO L225 Difference]: With dead ends: 43070 [2018-11-22 23:08:35,967 INFO L226 Difference]: Without dead ends: 23851 [2018-11-22 23:08:35,991 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2306 GetRequests, 2281 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2018-11-22 23:08:36,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23851 states. [2018-11-22 23:08:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23851 to 23490. [2018-11-22 23:08:36,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23490 states. [2018-11-22 23:08:36,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23490 states to 23490 states and 25802 transitions. [2018-11-22 23:08:36,242 INFO L78 Accepts]: Start accepts. Automaton has 23490 states and 25802 transitions. Word has length 1138 [2018-11-22 23:08:36,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:08:36,242 INFO L480 AbstractCegarLoop]: Abstraction has 23490 states and 25802 transitions. [2018-11-22 23:08:36,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 23:08:36,242 INFO L276 IsEmpty]: Start isEmpty. Operand 23490 states and 25802 transitions. [2018-11-22 23:08:36,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1440 [2018-11-22 23:08:36,263 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:08:36,263 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:08:36,263 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:08:36,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:36,264 INFO L82 PathProgramCache]: Analyzing trace with hash 423769670, now seen corresponding path program 1 times [2018-11-22 23:08:36,264 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:08:36,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:36,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:36,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:36,264 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:08:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6218 backedges. 2487 proven. 117 refuted. 0 times theorem prover too weak. 3614 trivial. 0 not checked. [2018-11-22 23:08:38,342 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:08:38,342 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:08:38,342 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1440 with the following transitions: [2018-11-22 23:08:38,342 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [738], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [938], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:08:38,345 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:08:38,345 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:08:42,431 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:08:42,431 INFO L272 AbstractInterpreter]: Visited 198 different actions 797 times. Merged at 12 different actions 38 times. Widened at 1 different actions 1 times. Performed 8887 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8887 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 18 fixpoints after 9 different actions. Largest state had 24 variables. [2018-11-22 23:08:42,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:42,436 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:08:42,436 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:08:42,436 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:08:42,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:42,443 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:08:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:42,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:43,501 INFO L134 CoverageAnalysis]: Checked inductivity of 6218 backedges. 1508 proven. 2 refuted. 0 times theorem prover too weak. 4708 trivial. 0 not checked. [2018-11-22 23:08:43,501 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:08:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 6218 backedges. 1508 proven. 2 refuted. 0 times theorem prover too weak. 4708 trivial. 0 not checked. [2018-11-22 23:08:44,452 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:08:44,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 18 [2018-11-22 23:08:44,453 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:08:44,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-22 23:08:44,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-22 23:08:44,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2018-11-22 23:08:44,454 INFO L87 Difference]: Start difference. First operand 23490 states and 25802 transitions. Second operand 17 states. [2018-11-22 23:08:47,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:08:47,386 INFO L93 Difference]: Finished difference Result 47199 states and 52037 transitions. [2018-11-22 23:08:47,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-22 23:08:47,386 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1439 [2018-11-22 23:08:47,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:08:47,418 INFO L225 Difference]: With dead ends: 47199 [2018-11-22 23:08:47,418 INFO L226 Difference]: Without dead ends: 22731 [2018-11-22 23:08:47,445 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2941 GetRequests, 2896 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=459, Invalid=1611, Unknown=0, NotChecked=0, Total=2070 [2018-11-22 23:08:47,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22731 states. [2018-11-22 23:08:47,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22731 to 21965. [2018-11-22 23:08:47,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21965 states. [2018-11-22 23:08:47,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21965 states to 21965 states and 23904 transitions. [2018-11-22 23:08:47,656 INFO L78 Accepts]: Start accepts. Automaton has 21965 states and 23904 transitions. Word has length 1439 [2018-11-22 23:08:47,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:08:47,657 INFO L480 AbstractCegarLoop]: Abstraction has 21965 states and 23904 transitions. [2018-11-22 23:08:47,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-22 23:08:47,657 INFO L276 IsEmpty]: Start isEmpty. Operand 21965 states and 23904 transitions. [2018-11-22 23:08:47,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1653 [2018-11-22 23:08:47,689 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:08:47,689 INFO L402 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:08:47,690 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:08:47,690 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:47,690 INFO L82 PathProgramCache]: Analyzing trace with hash 64561313, now seen corresponding path program 1 times [2018-11-22 23:08:47,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:08:47,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:47,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:47,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:47,691 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:08:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8648 backedges. 1736 proven. 496 refuted. 0 times theorem prover too weak. 6416 trivial. 0 not checked. [2018-11-22 23:08:49,070 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:08:49,070 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:08:49,071 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1653 with the following transitions: [2018-11-22 23:08:49,071 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [638], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:08:49,072 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:08:49,072 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:08:56,463 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:08:56,463 INFO L272 AbstractInterpreter]: Visited 198 different actions 794 times. Merged at 11 different actions 35 times. Widened at 1 different actions 1 times. Performed 8898 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8898 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 19 fixpoints after 10 different actions. Largest state had 24 variables. [2018-11-22 23:08:56,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:56,473 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:08:56,473 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:08:56,473 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:08:56,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:56,531 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:08:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:08:56,712 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:08:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 8648 backedges. 3997 proven. 2 refuted. 0 times theorem prover too weak. 4649 trivial. 0 not checked. [2018-11-22 23:08:57,411 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:08:58,314 INFO L134 CoverageAnalysis]: Checked inductivity of 8648 backedges. 1757 proven. 244 refuted. 0 times theorem prover too weak. 6647 trivial. 0 not checked. [2018-11-22 23:08:58,339 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:08:58,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-11-22 23:08:58,340 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:08:58,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-22 23:08:58,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-22 23:08:58,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-11-22 23:08:58,342 INFO L87 Difference]: Start difference. First operand 21965 states and 23904 transitions. Second operand 11 states. [2018-11-22 23:08:59,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:08:59,896 INFO L93 Difference]: Finished difference Result 41878 states and 45585 transitions. [2018-11-22 23:08:59,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-22 23:08:59,897 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1652 [2018-11-22 23:08:59,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:08:59,901 INFO L225 Difference]: With dead ends: 41878 [2018-11-22 23:08:59,901 INFO L226 Difference]: Without dead ends: 2977 [2018-11-22 23:08:59,929 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3344 GetRequests, 3313 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=627, Unknown=0, NotChecked=0, Total=870 [2018-11-22 23:08:59,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2018-11-22 23:08:59,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2958. [2018-11-22 23:08:59,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2958 states. [2018-11-22 23:08:59,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 3001 transitions. [2018-11-22 23:08:59,957 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 3001 transitions. Word has length 1652 [2018-11-22 23:08:59,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:08:59,958 INFO L480 AbstractCegarLoop]: Abstraction has 2958 states and 3001 transitions. [2018-11-22 23:08:59,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-22 23:08:59,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 3001 transitions. [2018-11-22 23:08:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1692 [2018-11-22 23:08:59,969 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 23:08:59,970 INFO L402 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:08:59,970 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 23:08:59,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:08:59,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1717289902, now seen corresponding path program 1 times [2018-11-22 23:08:59,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 23:08:59,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:59,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:08:59,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:08:59,971 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 23:09:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:03,600 INFO L134 CoverageAnalysis]: Checked inductivity of 8838 backedges. 1919 proven. 5284 refuted. 0 times theorem prover too weak. 1635 trivial. 0 not checked. [2018-11-22 23:09:03,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:09:03,600 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 23:09:03,600 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1692 with the following transitions: [2018-11-22 23:09:03,600 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-22 23:09:03,602 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 23:09:03,602 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 23:09:07,697 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 23:09:07,697 INFO L272 AbstractInterpreter]: Visited 202 different actions 810 times. Merged at 11 different actions 35 times. Widened at 1 different actions 1 times. Performed 9083 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9083 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 20 fixpoints after 11 different actions. Largest state had 24 variables. [2018-11-22 23:09:07,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:09:07,701 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 23:09:07,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 23:09:07,701 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 23:09:07,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:09:07,708 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 23:09:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:09:07,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:09:08,874 INFO L134 CoverageAnalysis]: Checked inductivity of 8838 backedges. 2852 proven. 84 refuted. 0 times theorem prover too weak. 5902 trivial. 0 not checked. [2018-11-22 23:09:08,874 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 23:09:10,513 INFO L134 CoverageAnalysis]: Checked inductivity of 8838 backedges. 2928 proven. 121 refuted. 0 times theorem prover too weak. 5789 trivial. 0 not checked. [2018-11-22 23:09:10,529 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 23:09:10,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 8, 9] total 39 [2018-11-22 23:09:10,529 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 23:09:10,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-22 23:09:10,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-22 23:09:10,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1312, Unknown=0, NotChecked=0, Total=1482 [2018-11-22 23:09:10,531 INFO L87 Difference]: Start difference. First operand 2958 states and 3001 transitions. Second operand 33 states. [2018-11-22 23:09:17,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 23:09:17,534 INFO L93 Difference]: Finished difference Result 4467 states and 4565 transitions. [2018-11-22 23:09:17,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-11-22 23:09:17,534 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1691 [2018-11-22 23:09:17,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 23:09:17,535 INFO L225 Difference]: With dead ends: 4467 [2018-11-22 23:09:17,535 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 23:09:17,542 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3504 GetRequests, 3399 SyntacticMatches, 3 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2786 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2016, Invalid=8696, Unknown=0, NotChecked=0, Total=10712 [2018-11-22 23:09:17,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 23:09:17,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 23:09:17,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 23:09:17,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 23:09:17,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1691 [2018-11-22 23:09:17,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 23:09:17,543 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:09:17,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-22 23:09:17,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 23:09:17,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 23:09:17,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 23:09:17,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:17,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:17,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:17,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:18,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:18,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:18,478 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:18,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:18,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:18,781 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:18,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:18,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,168 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,631 WARN L180 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 926 DAG size of output: 779 [2018-11-22 23:09:19,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,753 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:19,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,042 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,442 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,456 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,478 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 23:09:20,833 WARN L180 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 906 DAG size of output: 763 [2018-11-22 23:09:22,331 WARN L180 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 411 DAG size of output: 129 [2018-11-22 23:09:25,491 WARN L180 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 724 DAG size of output: 130 [2018-11-22 23:09:28,614 WARN L180 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 708 DAG size of output: 128 [2018-11-22 23:09:28,616 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-22 23:09:28,617 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,618 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-22 23:09:28,619 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,620 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,621 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 115) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-22 23:09:28,622 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-22 23:09:28,623 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-22 23:09:28,623 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse32 (= 7 |old(~a15~0)|)) (.cse18 (= 8 ~a15~0)) (.cse31 (= |calculate_output_#in~input| 0)) (.cse14 (= ~a24~0 |old(~a24~0)|)) (.cse16 (= |old(~a15~0)| ~a15~0)) (.cse28 (= 7 |old(~a21~0)|)) (.cse19 (= ~a24~0 1)) (.cse6 (= ~a12~0 |old(~a12~0)|)) (.cse15 (= ~a21~0 |old(~a21~0)|)) (.cse7 (= 1 ~a24~0)) (.cse9 (= 9 ~a15~0))) (let ((.cse0 (and .cse6 .cse15 .cse7 .cse9)) (.cse22 (< 76 |old(~a12~0)|)) (.cse1 (not (= 6 |old(~a21~0)|))) (.cse24 (< 7 |old(~a15~0)|)) (.cse20 (not (= 9 |old(~a21~0)|))) (.cse2 (not (= 9 |old(~a15~0)|))) (.cse17 (= ~a21~0 9)) (.cse30 (and .cse6 .cse15 (let ((.cse33 (= ~a15~0 8))) (or (and .cse33 .cse19 (= ~a21~0 7)) (and .cse33 (not (= ~a12~0 0)) .cse19))))) (.cse12 (not .cse28)) (.cse8 (= 10 ~a21~0)) (.cse11 (and .cse6 .cse14 .cse15 .cse16)) (.cse5 (not (= 10 |old(~a21~0)|))) (.cse13 (< 11 |old(~a12~0)|)) (.cse21 (or (= 0 |old(~a21~0)|) .cse28 .cse31)) (.cse10 (< |old(~a12~0)| 81)) (.cse23 (not (= 8 |old(~a15~0)|))) (.cse27 (and .cse6 .cse15 .cse18 .cse19)) (.cse29 (< 73282 |old(~a12~0)|)) (.cse3 (not (= 1 |old(~a24~0)|))) (.cse25 (and .cse6 .cse15 (= 7 ~a15~0) .cse7)) (.cse26 (not .cse32)) (.cse4 (not (= 8 |old(~a21~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (< 95434 |old(~a12~0)|) (<= |old(~a12~0)| 95380)) (or .cse2 .cse0 .cse3 (< 72 |old(~a12~0)|) (<= |old(~a12~0)| 18) .cse4) (or .cse2 .cse5 (and .cse6 .cse7 .cse8 .cse9) .cse10 .cse3) (or .cse11 .cse12 .cse10 .cse3) (or .cse2 .cse0 .cse3 .cse13 .cse4) (or .cse1 (and (<= ~a12~0 |old(~a12~0)|) .cse14 .cse15 .cse16) .cse3 (not (= 5 |old(~a15~0)|))) (or (and .cse6 .cse17 .cse18 .cse19) .cse20 .cse21 .cse22 .cse3 .cse23) (or .cse20 (and .cse6 .cse17 .cse16 .cse7) .cse3 .cse24) (or .cse0 (or .cse2 .cse10 .cse3 .cse4)) (or .cse25 .cse3 .cse13 .cse26) (or .cse2 .cse5 .cse3 .cse13 .cse0) (or .cse21 .cse22 .cse3 .cse23 .cse27 .cse4) (or .cse1 .cse3 .cse26 .cse11) (or .cse11 .cse28 .cse3 .cse29 .cse24) (or .cse30 .cse1 (= 0 |old(~a12~0)|) .cse3 .cse23 .cse31) (or .cse22 .cse32 .cse3 (and .cse6 .cse15 .cse16 .cse7) .cse24) (or .cse1 .cse32 (< 0 (+ |old(~a12~0)| 43)) .cse24 .cse11) (or .cse20 .cse2 (and .cse6 .cse17 .cse7 .cse9) .cse10 .cse3) (or .cse23 .cse30 .cse31 .cse12 .cse3 .cse13) (or (and .cse6 .cse18 .cse19 .cse8) (or .cse5 .cse21 .cse3 .cse23) .cse10) (or .cse5 .cse11 .cse3 .cse26) (or .cse5 .cse21 .cse3 .cse13 .cse23 .cse27) (or .cse21 .cse10 .cse3 .cse23 .cse27 .cse29 .cse4) (or .cse3 .cse25 .cse26 .cse4)))) [2018-11-22 23:09:28,623 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-22 23:09:28,623 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-22 23:09:28,623 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,623 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,623 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,623 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-22 23:09:28,623 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-22 23:09:28,624 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,625 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-22 23:09:28,626 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,627 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-22 23:09:28,628 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,629 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,630 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-22 23:09:28,631 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-22 23:09:28,632 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-22 23:09:28,632 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-22 23:09:28,632 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-22 23:09:28,632 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 23:09:28,632 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-22 23:09:28,632 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 23:09:28,632 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 23:09:28,632 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-11-22 23:09:28,632 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-22 23:09:28,632 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse18 (= 7 ~a21~0))) (let ((.cse17 (not (= main_~input~0 0))) (.cse24 (= ~a15~0 8)) (.cse25 (= ~a24~0 1)) (.cse27 (not .cse18)) (.cse7 (= 1 ~a24~0)) (.cse13 (not (= ~a15~0 7)))) (let ((.cse23 (and .cse27 .cse7 .cse13)) (.cse26 (not (= ~a15~0 9))) (.cse21 (not (= 1 |old(~a24~0)|))) (.cse9 (and (not (= ~a21~0 0)) .cse27 .cse17 .cse24 .cse25)) (.cse20 (= ~a21~0 8))) (let ((.cse11 (and .cse9 .cse20)) (.cse0 (<= ~a12~0 73282)) (.cse14 (= ~a24~0 |old(~a24~0)|)) (.cse12 (<= ~a12~0 76)) (.cse19 (= 6 ~a21~0)) (.cse2 (and .cse26 .cse27 .cse7 .cse13 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse21))) (.cse5 (= 9 ~a21~0)) (.cse4 (= 7 ~a15~0)) (.cse3 (and .cse26 .cse27 .cse7)) (.cse22 (and .cse23 .cse20)) (.cse8 (<= 81 ~a12~0)) (.cse16 (= 9 ~a15~0)) (.cse15 (<= ~a12~0 11)) (.cse10 (= ~a21~0 10)) (.cse6 (= ~a21~0 6)) (.cse1 (<= ~a15~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and (and .cse6 .cse7) .cse4) (and .cse8 (and .cse9 .cse10)) (and .cse0 (and .cse8 .cse11)) (and .cse12 .cse11) (and .cse1 (and .cse12 (and .cse7 .cse13))) (not (= 7 |old(~a21~0)|)) (and .cse0 .cse3 .cse4) (and .cse14 .cse10 .cse15 .cse16) (and (and .cse15 (and .cse17 .cse18)) .cse14 (= ~a15~0 |old(~a15~0)|)) (and .cse12 .cse9 (= ~a21~0 9)) (and .cse19 (<= ~a12~0 95434) .cse7 .cse16 (< 95380 ~a12~0)) (and (and .cse7 .cse20) .cse4) .cse21 (and .cse19 .cse7 (= 5 ~a15~0)) (and .cse16 (and .cse22 .cse15)) (and (and .cse7 .cse15) .cse4) (not (= 8 |old(~a15~0)|)) (and .cse1 .cse5 .cse2) (and .cse8 .cse23 (= 10 ~a21~0) .cse16) (and .cse8 .cse5 .cse23 .cse16) (and .cse4 (and .cse3 .cse10)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse22 (< 18 ~a12~0) (<= ~a12~0 72) .cse16) (and .cse6 .cse17 (and .cse24 (not (= ~a12~0 0)) .cse25)) (or (and .cse8 (and .cse7 (= ~a21~0 7))) (and .cse22 .cse8 .cse16)) (and (and .cse9 .cse15) .cse10) (and .cse6 (<= (+ ~a12~0 43) 0) .cse1 .cse13)))))) [2018-11-22 23:09:28,633 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-22 23:09:28,633 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-22 23:09:28,633 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse23 (= 7 ~a21~0)) (.cse18 (not (= 1 |old(~a24~0)|)))) (let ((.cse30 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse18)) (.cse27 (not (= ~a21~0 0))) (.cse25 (= ~a15~0 8)) (.cse26 (= ~a24~0 1)) (.cse29 (not .cse23)) (.cse8 (= 1 ~a24~0)) (.cse11 (not (= ~a15~0 7)))) (let ((.cse22 (and .cse29 .cse8 .cse11)) (.cse24 (= ~a21~0 7)) (.cse20 (and .cse30 (and .cse27 .cse29 .cse25 .cse26))) (.cse17 (= ~a21~0 8)) (.cse28 (not (= ~a15~0 9)))) (let ((.cse9 (<= ~a12~0 76)) (.cse12 (= ~a24~0 |old(~a24~0)|)) (.cse16 (= 6 ~a21~0)) (.cse2 (and .cse28 .cse29 .cse8 .cse11 .cse30)) (.cse7 (= 9 ~a21~0)) (.cse6 (= 7 ~a15~0)) (.cse5 (and .cse28 .cse29 .cse8)) (.cse0 (<= ~a12~0 73282)) (.cse10 (and .cse20 .cse17)) (.cse4 (or (and .cse25 .cse26 .cse24) (and .cse27 .cse25 (not (= ~a12~0 0)) .cse26))) (.cse19 (and .cse22 .cse17)) (.cse21 (<= 81 ~a12~0)) (.cse15 (= 9 ~a15~0)) (.cse14 (<= ~a12~0 11)) (.cse13 (= ~a21~0 10)) (.cse3 (= ~a21~0 6)) (.cse1 (<= ~a15~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4) (and .cse5 .cse6 .cse7) (and (and .cse3 .cse8) .cse6) (and .cse9 .cse10) (and .cse1 (and .cse9 (and .cse8 .cse11))) (not (= 7 |old(~a21~0)|)) (and .cse0 .cse5 .cse6) (and (and .cse9 (= ~a21~0 9)) .cse12 (= ~a15~0 |old(~a15~0)|)) (and .cse12 .cse13 .cse14 .cse15) (and .cse16 (<= ~a12~0 95434) .cse8 .cse15 (< 95380 ~a12~0)) (and (and .cse8 .cse17) .cse6) .cse18 (and .cse16 .cse8 (= 5 ~a15~0)) (and .cse15 (and .cse19 .cse14)) (and (and .cse8 .cse14) .cse6) (not (= 8 |old(~a15~0)|)) (and .cse1 .cse7 .cse2) (and (and .cse20 .cse13) (< 80 ~a12~0)) (and .cse21 .cse22 (= 10 ~a21~0) .cse15) (and .cse21 .cse7 .cse22 .cse15) (and .cse6 (and .cse5 .cse13)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse0 (and .cse21 .cse10)) (and .cse19 (< 18 ~a12~0) (<= ~a12~0 72) .cse15) (and (and .cse23 .cse4) .cse14) (or (and .cse21 (and .cse8 .cse24)) (and .cse19 .cse21 .cse15)) (and (and .cse20 .cse14) .cse13) (and .cse3 (<= (+ ~a12~0 43) 0) .cse1 .cse11)))))) [2018-11-22 23:09:28,633 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-11-22 23:09:28,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 11:09:28 BoogieIcfgContainer [2018-11-22 23:09:28,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 23:09:28,648 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 23:09:28,648 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 23:09:28,648 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 23:09:28,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:05:46" (3/4) ... [2018-11-22 23:09:28,651 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 23:09:28,656 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 23:09:28,657 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-22 23:09:28,657 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 23:09:28,669 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-22 23:09:28,670 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 23:09:28,696 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((a12 <= 73282 && a15 <= 7) && (((!(a15 == 9) && !(7 == a21)) && 1 == a24) && !(a15 == 7)) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) || (a21 == 6 && (((a15 == 8 && a24 == 1) && a21 == 7) || (((!(a21 == 0) && a15 == 8) && !(a12 == 0)) && a24 == 1)))) || ((((!(a15 == 9) && !(7 == a21)) && 1 == a24) && 7 == a15) && 9 == a21)) || ((a21 == 6 && 1 == a24) && 7 == a15)) || (a12 <= 76 && (((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))) && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && a21 == 8)) || (a15 <= 7 && a12 <= 76 && 1 == a24 && !(a15 == 7))) || !(7 == \old(a21))) || ((a12 <= 73282 && (!(a15 == 9) && !(7 == a21)) && 1 == a24) && 7 == a15)) || (((a12 <= 76 && a21 == 9) && a24 == \old(a24)) && a15 == \old(a15))) || (((a24 == \old(a24) && a21 == 10) && a12 <= 11) && 9 == a15)) || ((((6 == a21 && a12 <= 95434) && 1 == a24) && 9 == a15) && 95380 < a12)) || ((1 == a24 && a21 == 8) && 7 == a15)) || !(1 == \old(a24))) || ((6 == a21 && 1 == a24) && 5 == a15)) || (9 == a15 && (((!(7 == a21) && 1 == a24) && !(a15 == 7)) && a21 == 8) && a12 <= 11)) || ((1 == a24 && a12 <= 11) && 7 == a15)) || !(8 == \old(a15))) || ((a15 <= 7 && 9 == a21) && (((!(a15 == 9) && !(7 == a21)) && 1 == a24) && !(a15 == 7)) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))))) || (((((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))) && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && a21 == 10) && 80 < a12)) || (((81 <= a12 && (!(7 == a21) && 1 == a24) && !(a15 == 7)) && 10 == a21) && 9 == a15)) || (((81 <= a12 && 9 == a21) && (!(7 == a21) && 1 == a24) && !(a15 == 7)) && 9 == a15)) || (7 == a15 && ((!(a15 == 9) && !(7 == a21)) && 1 == a24) && a21 == 10)) || !(0 == \old(a12) + 49)) || (a12 <= 73282 && 81 <= a12 && (((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))) && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && a21 == 8)) || ((((((!(7 == a21) && 1 == a24) && !(a15 == 7)) && a21 == 8) && 18 < a12) && a12 <= 72) && 9 == a15)) || ((7 == a21 && (((a15 == 8 && a24 == 1) && a21 == 7) || (((!(a21 == 0) && a15 == 8) && !(a12 == 0)) && a24 == 1))) && a12 <= 11)) || (81 <= a12 && 1 == a24 && a21 == 7) || (((((!(7 == a21) && 1 == a24) && !(a15 == 7)) && a21 == 8) && 81 <= a12) && 9 == a15)) || (((((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))) && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && a12 <= 11) && a21 == 10)) || (((a21 == 6 && a12 + 43 <= 0) && a15 <= 7) && !(a15 == 7)) [2018-11-22 23:09:28,787 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1fd8a658-0acf-4fd2-88b3-6ab84d5594cb/bin-2019/utaipan/witness.graphml [2018-11-22 23:09:28,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 23:09:28,787 INFO L168 Benchmark]: Toolchain (without parser) took 223450.96 ms. Allocated memory was 1.0 GB in the beginning and 5.0 GB in the end (delta: 4.0 GB). Free memory was 951.1 MB in the beginning and 2.9 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.0 GB. Max. memory is 11.5 GB. [2018-11-22 23:09:28,788 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:09:28,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 908.1 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-22 23:09:28,788 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 908.1 MB in the beginning and 1.2 GB in the end (delta: -255.0 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-22 23:09:28,789 INFO L168 Benchmark]: Boogie Preprocessor took 55.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-22 23:09:28,789 INFO L168 Benchmark]: RCFGBuilder took 896.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 130.1 MB). Peak memory consumption was 130.1 MB. Max. memory is 11.5 GB. [2018-11-22 23:09:28,789 INFO L168 Benchmark]: TraceAbstraction took 221857.83 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 1.0 GB in the beginning and 2.9 GB in the end (delta: -1.9 GB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. [2018-11-22 23:09:28,789 INFO L168 Benchmark]: Witness Printer took 139.16 ms. Allocated memory is still 5.0 GB. Free memory was 2.9 GB in the beginning and 2.9 GB in the end (delta: 4.2 kB). Peak memory consumption was 4.2 kB. Max. memory is 11.5 GB. [2018-11-22 23:09:28,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 415.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 908.1 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.9 MB). Free memory was 908.1 MB in the beginning and 1.2 GB in the end (delta: -255.0 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 896.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 130.1 MB). Peak memory consumption was 130.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 221857.83 ms. Allocated memory was 1.2 GB in the beginning and 5.0 GB in the end (delta: 3.8 GB). Free memory was 1.0 GB in the beginning and 2.9 GB in the end (delta: -1.9 GB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. * Witness Printer took 139.16 ms. Allocated memory is still 5.0 GB. Free memory was 2.9 GB in the beginning and 2.9 GB in the end (delta: 4.2 kB). Peak memory consumption was 4.2 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 115]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((a12 <= 73282 && a15 <= 7) && (((!(a15 == 9) && !(7 == a21)) && 1 == a24) && !(a15 == 7)) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) || (a21 == 6 && (((a15 == 8 && a24 == 1) && a21 == 7) || (((!(a21 == 0) && a15 == 8) && !(a12 == 0)) && a24 == 1)))) || ((((!(a15 == 9) && !(7 == a21)) && 1 == a24) && 7 == a15) && 9 == a21)) || ((a21 == 6 && 1 == a24) && 7 == a15)) || (a12 <= 76 && (((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))) && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && a21 == 8)) || (a15 <= 7 && a12 <= 76 && 1 == a24 && !(a15 == 7))) || !(7 == \old(a21))) || ((a12 <= 73282 && (!(a15 == 9) && !(7 == a21)) && 1 == a24) && 7 == a15)) || (((a12 <= 76 && a21 == 9) && a24 == \old(a24)) && a15 == \old(a15))) || (((a24 == \old(a24) && a21 == 10) && a12 <= 11) && 9 == a15)) || ((((6 == a21 && a12 <= 95434) && 1 == a24) && 9 == a15) && 95380 < a12)) || ((1 == a24 && a21 == 8) && 7 == a15)) || !(1 == \old(a24))) || ((6 == a21 && 1 == a24) && 5 == a15)) || (9 == a15 && (((!(7 == a21) && 1 == a24) && !(a15 == 7)) && a21 == 8) && a12 <= 11)) || ((1 == a24 && a12 <= 11) && 7 == a15)) || !(8 == \old(a15))) || ((a15 <= 7 && 9 == a21) && (((!(a15 == 9) && !(7 == a21)) && 1 == a24) && !(a15 == 7)) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))))) || (((((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))) && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && a21 == 10) && 80 < a12)) || (((81 <= a12 && (!(7 == a21) && 1 == a24) && !(a15 == 7)) && 10 == a21) && 9 == a15)) || (((81 <= a12 && 9 == a21) && (!(7 == a21) && 1 == a24) && !(a15 == 7)) && 9 == a15)) || (7 == a15 && ((!(a15 == 9) && !(7 == a21)) && 1 == a24) && a21 == 10)) || !(0 == \old(a12) + 49)) || (a12 <= 73282 && 81 <= a12 && (((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))) && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && a21 == 8)) || ((((((!(7 == a21) && 1 == a24) && !(a15 == 7)) && a21 == 8) && 18 < a12) && a12 <= 72) && 9 == a15)) || ((7 == a21 && (((a15 == 8 && a24 == 1) && a21 == 7) || (((!(a21 == 0) && a15 == 8) && !(a12 == 0)) && a24 == 1))) && a12 <= 11)) || (81 <= a12 && 1 == a24 && a21 == 7) || (((((!(7 == a21) && 1 == a24) && !(a15 == 7)) && a21 == 8) && 81 <= a12) && 9 == a15)) || (((((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))) && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && a12 <= 11) && a21 == 10)) || (((a21 == 6 && a12 + 43 <= 0) && a15 <= 7) && !(a15 == 7)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 221.8s OverallTime, 17 OverallIterations, 14 TraceHistogramMax, 115.2s AutomataDifference, 0.0s DeadEndRemovalTime, 11.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2535 SDtfs, 53478 SDslu, 5394 SDs, 0 SdLazy, 66838 SolverSat, 8489 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 90.4s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 22914 GetRequests, 22296 SyntacticMatches, 17 SemanticMatches, 601 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10662 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23490occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 58.1s AbstIntTime, 13 AbstIntIterations, 4 AbstIntStrong, 0.9973568600662258 AbsIntWeakeningRatio, 0.08491761723700887 AbsIntAvgWeakeningVarsNumRemoved, 16.124841571609632 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 17 MinimizatonAttempts, 3787 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 624 PreInvPairs, 832 NumberOfFragments, 2026 HoareAnnotationTreeSize, 624 FomulaSimplifications, 4816751 FormulaSimplificationTreeSizeReduction, 3.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2430879 FormulaSimplificationTreeSizeReductionInter, 7.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 22428 NumberOfCodeBlocks, 22099 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 32659 ConstructedInterpolants, 0 QuantifiedInterpolants, 126283343 SizeOfPredicates, 34 NumberOfNonLiveVariables, 13936 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 37 InterpolantComputations, 3 PerfectInterpolantSequences, 102697/114600 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...