./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label45_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_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label45_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 3a5c86310b0cee0c3fda3eee1e81be72e3f86b95 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 02:50:56,766 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:50:56,768 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:50:56,774 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:50:56,774 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:50:56,775 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:50:56,776 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:50:56,777 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:50:56,778 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:50:56,779 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:50:56,779 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:50:56,779 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:50:56,780 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:50:56,780 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:50:56,781 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:50:56,781 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:50:56,782 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:50:56,783 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:50:56,784 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:50:56,785 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:50:56,785 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:50:56,786 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:50:56,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:50:56,788 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:50:56,788 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:50:56,789 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:50:56,789 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:50:56,790 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:50:56,790 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:50:56,791 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:50:56,791 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:50:56,791 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:50:56,792 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:50:56,792 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:50:56,792 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:50:56,793 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:50:56,793 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 02:50:56,801 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:50:56,801 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:50:56,802 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:50:56,802 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:50:56,802 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 02:50:56,802 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 02:50:56,802 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 02:50:56,802 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 02:50:56,802 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 02:50:56,803 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 02:50:56,803 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 02:50:56,803 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 02:50:56,803 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 02:50:56,803 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:50:56,804 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:50:56,804 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:50:56,804 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:50:56,804 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:50:56,804 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:50:56,804 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:50:56,804 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:50:56,804 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:50:56,805 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:50:56,805 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:50:56,805 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:50:56,805 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:50:56,805 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:50:56,805 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:50:56,805 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:50:56,806 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:50:56,806 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:50:56,806 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:50:56,806 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:50:56,806 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 02:50:56,806 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:50:56,806 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 02:50:56,806 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 02:50:56,807 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_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 -> 3a5c86310b0cee0c3fda3eee1e81be72e3f86b95 [2018-11-23 02:50:56,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:50:56,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:50:56,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:50:56,843 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:50:56,843 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:50:56,844 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label45_true-unreach-call_false-termination.c [2018-11-23 02:50:56,887 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/data/7ba0c4f84/162f61816ba740b1af51f7827aac1bea/FLAGad73112ed [2018-11-23 02:50:57,354 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:50:57,355 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/sv-benchmarks/c/eca-rers2012/Problem14_label45_true-unreach-call_false-termination.c [2018-11-23 02:50:57,364 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/data/7ba0c4f84/162f61816ba740b1af51f7827aac1bea/FLAGad73112ed [2018-11-23 02:50:57,861 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/data/7ba0c4f84/162f61816ba740b1af51f7827aac1bea [2018-11-23 02:50:57,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:50:57,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:50:57,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:50:57,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:50:57,866 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:50:57,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:57" (1/1) ... [2018-11-23 02:50:57,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd21f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:57, skipping insertion in model container [2018-11-23 02:50:57,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:57" (1/1) ... [2018-11-23 02:50:57,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:50:57,916 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:50:58,152 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:50:58,155 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:50:58,239 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:50:58,251 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:50:58,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58 WrapperNode [2018-11-23 02:50:58,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:50:58,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:50:58,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:50:58,253 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:50:58,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (1/1) ... [2018-11-23 02:50:58,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (1/1) ... [2018-11-23 02:50:58,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:50:58,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:50:58,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:50:58,338 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:50:58,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (1/1) ... [2018-11-23 02:50:58,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (1/1) ... [2018-11-23 02:50:58,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (1/1) ... [2018-11-23 02:50:58,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (1/1) ... [2018-11-23 02:50:58,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (1/1) ... [2018-11-23 02:50:58,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (1/1) ... [2018-11-23 02:50:58,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (1/1) ... [2018-11-23 02:50:58,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:50:58,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:50:58,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:50:58,391 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:50:58,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:50:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 02:50:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:50:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:50:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 02:50:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 02:50:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:50:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:50:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:50:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:50:59,434 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:50:59,434 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 02:50:59,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:59 BoogieIcfgContainer [2018-11-23 02:50:59,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:50:59,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:50:59,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:50:59,437 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:50:59,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:50:57" (1/3) ... [2018-11-23 02:50:59,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7546b0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:59, skipping insertion in model container [2018-11-23 02:50:59,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:58" (2/3) ... [2018-11-23 02:50:59,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7546b0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:59, skipping insertion in model container [2018-11-23 02:50:59,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:59" (3/3) ... [2018-11-23 02:50:59,440 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label45_true-unreach-call_false-termination.c [2018-11-23 02:50:59,451 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:50:59,457 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 02:50:59,469 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 02:50:59,495 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:50:59,495 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:50:59,495 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:50:59,496 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:50:59,496 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:50:59,496 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:50:59,496 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:50:59,496 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:50:59,515 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-11-23 02:50:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 02:50:59,521 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:50:59,522 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] [2018-11-23 02:50:59,523 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:50:59,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:50:59,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1020079963, now seen corresponding path program 1 times [2018-11-23 02:50:59,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:50:59,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:50:59,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:50:59,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:50:59,571 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:50:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:50:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:50:59,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:50:59,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 02:50:59,746 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:50:59,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 02:50:59,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 02:50:59,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 02:50:59,764 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2018-11-23 02:51:00,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:51:00,877 INFO L93 Difference]: Finished difference Result 890 states and 1606 transitions. [2018-11-23 02:51:00,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 02:51:00,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-11-23 02:51:00,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:51:00,892 INFO L225 Difference]: With dead ends: 890 [2018-11-23 02:51:00,893 INFO L226 Difference]: Without dead ends: 630 [2018-11-23 02:51:00,896 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 02:51:00,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2018-11-23 02:51:00,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 432. [2018-11-23 02:51:00,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-11-23 02:51:00,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 660 transitions. [2018-11-23 02:51:00,942 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 660 transitions. Word has length 42 [2018-11-23 02:51:00,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:51:00,943 INFO L480 AbstractCegarLoop]: Abstraction has 432 states and 660 transitions. [2018-11-23 02:51:00,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 02:51:00,943 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 660 transitions. [2018-11-23 02:51:00,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-11-23 02:51:00,947 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:51:00,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:51:00,948 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:51:00,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:51:00,948 INFO L82 PathProgramCache]: Analyzing trace with hash 2050989129, now seen corresponding path program 1 times [2018-11-23 02:51:00,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:51:00,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:51:00,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:51:00,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:51:00,949 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:51:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:51:01,050 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:51:01,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:51:01,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 02:51:01,051 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:51:01,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 02:51:01,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 02:51:01,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 02:51:01,053 INFO L87 Difference]: Start difference. First operand 432 states and 660 transitions. Second operand 4 states. [2018-11-23 02:51:01,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:51:01,902 INFO L93 Difference]: Finished difference Result 1586 states and 2526 transitions. [2018-11-23 02:51:01,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 02:51:01,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 125 [2018-11-23 02:51:01,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:51:01,907 INFO L225 Difference]: With dead ends: 1586 [2018-11-23 02:51:01,907 INFO L226 Difference]: Without dead ends: 776 [2018-11-23 02:51:01,911 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 [2018-11-23 02:51:01,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2018-11-23 02:51:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2018-11-23 02:51:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2018-11-23 02:51:01,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1149 transitions. [2018-11-23 02:51:01,939 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1149 transitions. Word has length 125 [2018-11-23 02:51:01,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:51:01,939 INFO L480 AbstractCegarLoop]: Abstraction has 776 states and 1149 transitions. [2018-11-23 02:51:01,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 02:51:01,939 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1149 transitions. [2018-11-23 02:51:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-23 02:51:01,942 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:51:01,942 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:51:01,942 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:51:01,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:51:01,942 INFO L82 PathProgramCache]: Analyzing trace with hash 488627185, now seen corresponding path program 1 times [2018-11-23 02:51:01,942 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:51:01,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:51:01,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:51:01,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:51:01,944 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:51:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:51:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:51:02,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:51:02,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 02:51:02,011 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:51:02,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 02:51:02,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 02:51:02,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 02:51:02,012 INFO L87 Difference]: Start difference. First operand 776 states and 1149 transitions. Second operand 4 states. [2018-11-23 02:51:02,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:51:02,759 INFO L93 Difference]: Finished difference Result 3002 states and 4593 transitions. [2018-11-23 02:51:02,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 02:51:02,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2018-11-23 02:51:02,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:51:02,768 INFO L225 Difference]: With dead ends: 3002 [2018-11-23 02:51:02,768 INFO L226 Difference]: Without dead ends: 2232 [2018-11-23 02:51:02,773 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 [2018-11-23 02:51:02,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2018-11-23 02:51:02,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2232. [2018-11-23 02:51:02,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2232 states. [2018-11-23 02:51:02,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 3144 transitions. [2018-11-23 02:51:02,812 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 3144 transitions. Word has length 137 [2018-11-23 02:51:02,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:51:02,812 INFO L480 AbstractCegarLoop]: Abstraction has 2232 states and 3144 transitions. [2018-11-23 02:51:02,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 02:51:02,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 3144 transitions. [2018-11-23 02:51:02,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-11-23 02:51:02,818 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:51:02,818 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:51:02,818 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:51:02,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:51:02,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1957605909, now seen corresponding path program 1 times [2018-11-23 02:51:02,819 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:51:02,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:51:02,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:51:02,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:51:02,820 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:51:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:51:02,966 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:51:02,966 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:51:02,966 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:51:02,967 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2018-11-23 02:51:02,968 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], [245], [247], [250], [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], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 02:51:03,001 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:51:03,001 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:51:03,302 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 02:51:03,303 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Performed 1129 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1129 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-11-23 02:51:03,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:51:03,325 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 02:51:03,645 INFO L227 lantSequenceWeakener]: Weakened 247 states. On average, predicates are now at 77.72% of their original sizes. [2018-11-23 02:51:03,646 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 02:51:03,682 INFO L415 sIntCurrentIteration]: We unified 255 AI predicates to 255 [2018-11-23 02:51:03,682 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 02:51:03,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 02:51:03,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-23 02:51:03,683 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:51:03,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 02:51:03,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 02:51:03,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 02:51:03,684 INFO L87 Difference]: Start difference. First operand 2232 states and 3144 transitions. Second operand 6 states. [2018-11-23 02:51:10,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:51:10,111 INFO L93 Difference]: Finished difference Result 4641 states and 6514 transitions. [2018-11-23 02:51:10,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 02:51:10,111 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 256 [2018-11-23 02:51:10,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:51:10,119 INFO L225 Difference]: With dead ends: 4641 [2018-11-23 02:51:10,119 INFO L226 Difference]: Without dead ends: 2415 [2018-11-23 02:51:10,125 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 256 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 02:51:10,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2018-11-23 02:51:10,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2414. [2018-11-23 02:51:10,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2414 states. [2018-11-23 02:51:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3334 transitions. [2018-11-23 02:51:10,160 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3334 transitions. Word has length 256 [2018-11-23 02:51:10,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:51:10,160 INFO L480 AbstractCegarLoop]: Abstraction has 2414 states and 3334 transitions. [2018-11-23 02:51:10,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 02:51:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3334 transitions. [2018-11-23 02:51:10,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-11-23 02:51:10,165 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:51:10,166 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, 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, 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] [2018-11-23 02:51:10,166 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:51:10,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:51:10,166 INFO L82 PathProgramCache]: Analyzing trace with hash 453969074, now seen corresponding path program 1 times [2018-11-23 02:51:10,166 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:51:10,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:51:10,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:51:10,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:51:10,167 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:51:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:51:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 191 proven. 173 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 02:51:10,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:51:10,565 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:51:10,566 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 341 with the following transitions: [2018-11-23 02:51:10,566 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], [245], [247], [250], [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], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 02:51:10,570 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:51:10,570 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:51:10,686 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 02:51:10,686 INFO L272 AbstractInterpreter]: Visited 128 different actions 249 times. Merged at 3 different actions 3 times. Never widened. Performed 2341 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2341 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 02:51:10,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:51:10,693 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 02:51:10,958 INFO L227 lantSequenceWeakener]: Weakened 337 states. On average, predicates are now at 77.66% of their original sizes. [2018-11-23 02:51:10,958 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 02:51:11,014 INFO L415 sIntCurrentIteration]: We unified 339 AI predicates to 339 [2018-11-23 02:51:11,014 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 02:51:11,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 02:51:11,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-23 02:51:11,015 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:51:11,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 02:51:11,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 02:51:11,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 02:51:11,016 INFO L87 Difference]: Start difference. First operand 2414 states and 3334 transitions. Second operand 10 states. [2018-11-23 02:51:51,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:51:51,492 INFO L93 Difference]: Finished difference Result 5377 states and 7329 transitions. [2018-11-23 02:51:51,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 02:51:51,493 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 340 [2018-11-23 02:51:51,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:51:51,500 INFO L225 Difference]: With dead ends: 5377 [2018-11-23 02:51:51,500 INFO L226 Difference]: Without dead ends: 2783 [2018-11-23 02:51:51,507 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 348 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-23 02:51:51,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2018-11-23 02:51:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2782. [2018-11-23 02:51:51,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2018-11-23 02:51:51,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3733 transitions. [2018-11-23 02:51:51,544 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3733 transitions. Word has length 340 [2018-11-23 02:51:51,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:51:51,545 INFO L480 AbstractCegarLoop]: Abstraction has 2782 states and 3733 transitions. [2018-11-23 02:51:51,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 02:51:51,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3733 transitions. [2018-11-23 02:51:51,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-11-23 02:51:51,550 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:51:51,551 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:51:51,551 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:51:51,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:51:51,551 INFO L82 PathProgramCache]: Analyzing trace with hash 501990874, now seen corresponding path program 1 times [2018-11-23 02:51:51,551 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:51:51,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:51:51,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:51:51,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:51:51,552 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:51:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:51:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 241 proven. 124 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-23 02:51:51,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:51:51,770 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:51:51,770 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 381 with the following transitions: [2018-11-23 02:51:51,770 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], [245], [247], [250], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 02:51:51,774 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:51:51,774 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:51:55,156 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 02:51:55,156 INFO L272 AbstractInterpreter]: Visited 128 different actions 377 times. Merged at 6 different actions 13 times. Never widened. Performed 3650 root evaluator evaluations with a maximum evaluation depth of 21. Performed 3650 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 02:51:55,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:51:55,161 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 02:51:55,908 INFO L227 lantSequenceWeakener]: Weakened 377 states. On average, predicates are now at 80.27% of their original sizes. [2018-11-23 02:51:55,908 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 02:51:55,945 INFO L415 sIntCurrentIteration]: We unified 379 AI predicates to 379 [2018-11-23 02:51:55,945 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 02:51:55,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 02:51:55,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-23 02:51:55,945 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:51:55,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 02:51:55,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 02:51:55,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 02:51:55,946 INFO L87 Difference]: Start difference. First operand 2782 states and 3733 transitions. Second operand 9 states. [2018-11-23 02:52:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:52:12,793 INFO L93 Difference]: Finished difference Result 6460 states and 8893 transitions. [2018-11-23 02:52:12,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 02:52:12,793 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 380 [2018-11-23 02:52:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:52:12,806 INFO L225 Difference]: With dead ends: 6460 [2018-11-23 02:52:12,806 INFO L226 Difference]: Without dead ends: 3866 [2018-11-23 02:52:12,816 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 386 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-23 02:52:12,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2018-11-23 02:52:12,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3850. [2018-11-23 02:52:12,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3850 states. [2018-11-23 02:52:12,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 5015 transitions. [2018-11-23 02:52:12,890 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 5015 transitions. Word has length 380 [2018-11-23 02:52:12,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:52:12,891 INFO L480 AbstractCegarLoop]: Abstraction has 3850 states and 5015 transitions. [2018-11-23 02:52:12,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 02:52:12,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 5015 transitions. [2018-11-23 02:52:12,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2018-11-23 02:52:12,904 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:52:12,904 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:52:12,904 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:52:12,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:12,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1385945670, now seen corresponding path program 1 times [2018-11-23 02:52:12,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:52:12,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:12,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:12,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:12,906 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:52:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 318 proven. 233 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-23 02:52:13,393 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:13,393 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:52:13,393 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 440 with the following transitions: [2018-11-23 02:52:13,393 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], [245], [247], [250], [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], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 02:52:13,395 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:52:13,396 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:52:13,517 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 02:52:13,518 INFO L272 AbstractInterpreter]: Visited 129 different actions 252 times. Merged at 4 different actions 4 times. Never widened. Performed 2331 root evaluator evaluations with a maximum evaluation depth of 16. Performed 2331 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 02:52:13,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:13,521 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 02:52:13,770 INFO L227 lantSequenceWeakener]: Weakened 436 states. On average, predicates are now at 77.59% of their original sizes. [2018-11-23 02:52:13,770 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 02:52:13,798 INFO L415 sIntCurrentIteration]: We unified 438 AI predicates to 438 [2018-11-23 02:52:13,798 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 02:52:13,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 02:52:13,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-23 02:52:13,799 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:52:13,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 02:52:13,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 02:52:13,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 02:52:13,799 INFO L87 Difference]: Start difference. First operand 3850 states and 5015 transitions. Second operand 10 states. [2018-11-23 02:52:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:52:26,025 INFO L93 Difference]: Finished difference Result 7147 states and 9455 transitions. [2018-11-23 02:52:26,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 02:52:26,025 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 439 [2018-11-23 02:52:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:52:26,033 INFO L225 Difference]: With dead ends: 7147 [2018-11-23 02:52:26,033 INFO L226 Difference]: Without dead ends: 3669 [2018-11-23 02:52:26,039 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 446 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-23 02:52:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3669 states. [2018-11-23 02:52:26,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3669 to 3667. [2018-11-23 02:52:26,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3667 states. [2018-11-23 02:52:26,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3667 states to 3667 states and 4813 transitions. [2018-11-23 02:52:26,079 INFO L78 Accepts]: Start accepts. Automaton has 3667 states and 4813 transitions. Word has length 439 [2018-11-23 02:52:26,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:52:26,080 INFO L480 AbstractCegarLoop]: Abstraction has 3667 states and 4813 transitions. [2018-11-23 02:52:26,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 02:52:26,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3667 states and 4813 transitions. [2018-11-23 02:52:26,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2018-11-23 02:52:26,087 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:52:26,088 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:52:26,088 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:52:26,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:26,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1323887270, now seen corresponding path program 1 times [2018-11-23 02:52:26,088 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:52:26,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:26,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:26,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:26,089 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:52:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 436 proven. 2 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2018-11-23 02:52:26,259 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:26,259 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:52:26,259 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 454 with the following transitions: [2018-11-23 02:52:26,259 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], [245], [247], [250], [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], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 02:52:26,261 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:52:26,261 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:52:30,202 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:52:30,202 INFO L272 AbstractInterpreter]: Visited 130 different actions 515 times. Merged at 7 different actions 28 times. Widened at 1 different actions 1 times. Performed 5175 root evaluator evaluations with a maximum evaluation depth of 21. Performed 5175 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-23 02:52:30,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:30,210 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:52:30,210 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:30,210 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 02:52:30,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:30,216 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:52:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:30,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:52:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 436 proven. 2 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2018-11-23 02:52:30,430 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:52:30,584 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 436 proven. 2 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2018-11-23 02:52:30,600 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:52:30,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-23 02:52:30,600 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:52:30,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 02:52:30,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 02:52:30,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-23 02:52:30,601 INFO L87 Difference]: Start difference. First operand 3667 states and 4813 transitions. Second operand 9 states. [2018-11-23 02:52:31,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:52:31,858 INFO L93 Difference]: Finished difference Result 8638 states and 12631 transitions. [2018-11-23 02:52:31,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 02:52:31,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 453 [2018-11-23 02:52:31,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:52:31,878 INFO L225 Difference]: With dead ends: 8638 [2018-11-23 02:52:31,878 INFO L226 Difference]: Without dead ends: 5343 [2018-11-23 02:52:31,888 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 923 GetRequests, 907 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2018-11-23 02:52:31,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5343 states. [2018-11-23 02:52:31,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5343 to 5239. [2018-11-23 02:52:31,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5239 states. [2018-11-23 02:52:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 7003 transitions. [2018-11-23 02:52:32,005 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 7003 transitions. Word has length 453 [2018-11-23 02:52:32,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:52:32,005 INFO L480 AbstractCegarLoop]: Abstraction has 5239 states and 7003 transitions. [2018-11-23 02:52:32,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 02:52:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 7003 transitions. [2018-11-23 02:52:32,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2018-11-23 02:52:32,017 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:52:32,017 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:52:32,018 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:52:32,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:32,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1301052626, now seen corresponding path program 1 times [2018-11-23 02:52:32,018 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:52:32,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:32,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:32,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:32,019 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:52:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:32,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 330 proven. 136 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2018-11-23 02:52:32,334 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:32,334 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:52:32,334 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 545 with the following transitions: [2018-11-23 02:52:32,334 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], [245], [247], [250], [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], [494], [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], [598], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 02:52:32,336 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:52:32,336 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:52:36,250 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:52:36,250 INFO L272 AbstractInterpreter]: Visited 131 different actions 523 times. Merged at 9 different actions 32 times. Never widened. Performed 5200 root evaluator evaluations with a maximum evaluation depth of 21. Performed 5200 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 02:52:36,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:36,252 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:52:36,252 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:36,252 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 [2018-11-23 02:52:36,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:36,258 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:52:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:36,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:52:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 789 proven. 2 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-11-23 02:52:36,435 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:52:36,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 330 proven. 136 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2018-11-23 02:52:36,600 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:52:36,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-11-23 02:52:36,600 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:52:36,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 02:52:36,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 02:52:36,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-23 02:52:36,601 INFO L87 Difference]: Start difference. First operand 5239 states and 7003 transitions. Second operand 10 states. [2018-11-23 02:52:38,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:52:38,542 INFO L93 Difference]: Finished difference Result 12809 states and 18100 transitions. [2018-11-23 02:52:38,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-23 02:52:38,542 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 544 [2018-11-23 02:52:38,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:52:38,572 INFO L225 Difference]: With dead ends: 12809 [2018-11-23 02:52:38,572 INFO L226 Difference]: Without dead ends: 7562 [2018-11-23 02:52:38,601 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1128 GetRequests, 1100 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=225, Invalid=531, Unknown=0, NotChecked=0, Total=756 [2018-11-23 02:52:38,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7562 states. [2018-11-23 02:52:38,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7562 to 7492. [2018-11-23 02:52:38,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7492 states. [2018-11-23 02:52:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7492 states to 7492 states and 9817 transitions. [2018-11-23 02:52:38,745 INFO L78 Accepts]: Start accepts. Automaton has 7492 states and 9817 transitions. Word has length 544 [2018-11-23 02:52:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:52:38,745 INFO L480 AbstractCegarLoop]: Abstraction has 7492 states and 9817 transitions. [2018-11-23 02:52:38,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 02:52:38,745 INFO L276 IsEmpty]: Start isEmpty. Operand 7492 states and 9817 transitions. [2018-11-23 02:52:38,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2018-11-23 02:52:38,754 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:52:38,754 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, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:52:38,755 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:52:38,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:38,755 INFO L82 PathProgramCache]: Analyzing trace with hash 642600657, now seen corresponding path program 1 times [2018-11-23 02:52:38,755 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:52:38,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:38,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:38,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:38,756 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:52:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:39,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 471 proven. 427 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-11-23 02:52:39,366 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:39,366 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:52:39,366 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 548 with the following transitions: [2018-11-23 02:52:39,366 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], [245], [247], [250], [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], [598], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 02:52:39,368 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:52:39,368 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:52:43,206 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:52:43,207 INFO L272 AbstractInterpreter]: Visited 131 different actions 517 times. Merged at 8 different actions 26 times. Never widened. Performed 5156 root evaluator evaluations with a maximum evaluation depth of 21. Performed 5156 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 02:52:43,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:43,208 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:52:43,208 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:43,208 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 [2018-11-23 02:52:43,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:43,214 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:52:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:43,276 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:52:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 568 proven. 2 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2018-11-23 02:52:43,380 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:52:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 568 proven. 2 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2018-11-23 02:52:43,566 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:52:43,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-23 02:52:43,567 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:52:43,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 02:52:43,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 02:52:43,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-11-23 02:52:43,568 INFO L87 Difference]: Start difference. First operand 7492 states and 9817 transitions. Second operand 17 states. [2018-11-23 02:52:46,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:52:46,662 INFO L93 Difference]: Finished difference Result 14617 states and 19441 transitions. [2018-11-23 02:52:46,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-11-23 02:52:46,662 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 547 [2018-11-23 02:52:46,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:52:46,670 INFO L225 Difference]: With dead ends: 14617 [2018-11-23 02:52:46,670 INFO L226 Difference]: Without dead ends: 3100 [2018-11-23 02:52:46,698 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1183 GetRequests, 1116 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1367 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=964, Invalid=3592, Unknown=0, NotChecked=0, Total=4556 [2018-11-23 02:52:46,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2018-11-23 02:52:46,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 2946. [2018-11-23 02:52:46,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2946 states. [2018-11-23 02:52:46,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 3124 transitions. [2018-11-23 02:52:46,742 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 3124 transitions. Word has length 547 [2018-11-23 02:52:46,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:52:46,743 INFO L480 AbstractCegarLoop]: Abstraction has 2946 states and 3124 transitions. [2018-11-23 02:52:46,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 02:52:46,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 3124 transitions. [2018-11-23 02:52:46,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2018-11-23 02:52:46,749 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:52:46,749 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, 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, 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] [2018-11-23 02:52:46,750 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:52:46,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:46,750 INFO L82 PathProgramCache]: Analyzing trace with hash -142539850, now seen corresponding path program 1 times [2018-11-23 02:52:46,750 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:52:46,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:46,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:46,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:46,751 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:52:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:47,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 527 proven. 119 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-11-23 02:52:47,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:47,158 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:52:47,158 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 677 with the following transitions: [2018-11-23 02:52:47,158 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], [245], [247], [250], [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], [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] [2018-11-23 02:52:47,160 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:52:47,160 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:52:51,078 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:52:51,078 INFO L272 AbstractInterpreter]: Visited 191 different actions 766 times. Merged at 9 different actions 35 times. Widened at 1 different actions 1 times. Performed 8455 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8455 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 02:52:51,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:51,079 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:52:51,079 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:51,079 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 [2018-11-23 02:52:51,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:51,086 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:52:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:51,165 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:52:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 934 proven. 2 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2018-11-23 02:52:51,323 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:52:51,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 527 proven. 119 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2018-11-23 02:52:51,575 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:52:51,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-23 02:52:51,575 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:52:51,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 02:52:51,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 02:52:51,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-23 02:52:51,576 INFO L87 Difference]: Start difference. First operand 2946 states and 3124 transitions. Second operand 7 states. [2018-11-23 02:52:52,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:52:52,198 INFO L93 Difference]: Finished difference Result 6695 states and 7532 transitions. [2018-11-23 02:52:52,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 02:52:52,199 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 676 [2018-11-23 02:52:52,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:52:52,206 INFO L225 Difference]: With dead ends: 6695 [2018-11-23 02:52:52,207 INFO L226 Difference]: Without dead ends: 4121 [2018-11-23 02:52:52,210 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1366 GetRequests, 1353 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-23 02:52:52,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4121 states. [2018-11-23 02:52:52,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4121 to 3884. [2018-11-23 02:52:52,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3884 states. [2018-11-23 02:52:52,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3884 states to 3884 states and 4170 transitions. [2018-11-23 02:52:52,265 INFO L78 Accepts]: Start accepts. Automaton has 3884 states and 4170 transitions. Word has length 676 [2018-11-23 02:52:52,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:52:52,266 INFO L480 AbstractCegarLoop]: Abstraction has 3884 states and 4170 transitions. [2018-11-23 02:52:52,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 02:52:52,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3884 states and 4170 transitions. [2018-11-23 02:52:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2018-11-23 02:52:52,273 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:52:52,274 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, 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, 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, 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] [2018-11-23 02:52:52,274 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:52:52,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:52,274 INFO L82 PathProgramCache]: Analyzing trace with hash -39341501, now seen corresponding path program 1 times [2018-11-23 02:52:52,274 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:52:52,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:52,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:52,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:52:52,275 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:52:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 571 proven. 883 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2018-11-23 02:52:53,427 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:53,428 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:52:53,428 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 803 with the following transitions: [2018-11-23 02:52:53,428 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], [245], [247], [250], [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], [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] [2018-11-23 02:52:53,430 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:52:53,430 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:52:57,379 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:52:57,379 INFO L272 AbstractInterpreter]: Visited 191 different actions 765 times. Merged at 9 different actions 34 times. Widened at 1 different actions 1 times. Performed 8424 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8424 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-23 02:52:57,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:52:57,385 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:52:57,385 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:52:57,385 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 [2018-11-23 02:52:57,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:52:57,390 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:52:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:52:57,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:52:57,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 1210 proven. 2 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2018-11-23 02:52:57,870 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:52:58,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 695 proven. 119 refuted. 0 times theorem prover too weak. 1082 trivial. 0 not checked. [2018-11-23 02:52:58,355 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:52:58,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2018-11-23 02:52:58,355 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:52:58,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 02:52:58,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 02:52:58,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-11-23 02:52:58,357 INFO L87 Difference]: Start difference. First operand 3884 states and 4170 transitions. Second operand 18 states. [2018-11-23 02:53:01,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:01,061 INFO L93 Difference]: Finished difference Result 8475 states and 9219 transitions. [2018-11-23 02:53:01,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-11-23 02:53:01,061 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 802 [2018-11-23 02:53:01,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:53:01,070 INFO L225 Difference]: With dead ends: 8475 [2018-11-23 02:53:01,070 INFO L226 Difference]: Without dead ends: 4963 [2018-11-23 02:53:01,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1680 GetRequests, 1617 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=741, Invalid=2799, Unknown=0, NotChecked=0, Total=3540 [2018-11-23 02:53:01,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2018-11-23 02:53:01,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4592. [2018-11-23 02:53:01,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4592 states. [2018-11-23 02:53:01,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 4913 transitions. [2018-11-23 02:53:01,143 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 4913 transitions. Word has length 802 [2018-11-23 02:53:01,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:53:01,143 INFO L480 AbstractCegarLoop]: Abstraction has 4592 states and 4913 transitions. [2018-11-23 02:53:01,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 02:53:01,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 4913 transitions. [2018-11-23 02:53:01,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2018-11-23 02:53:01,151 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:53:01,151 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, 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, 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, 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] [2018-11-23 02:53:01,151 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:53:01,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:01,152 INFO L82 PathProgramCache]: Analyzing trace with hash 733851430, now seen corresponding path program 1 times [2018-11-23 02:53:01,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:53:01,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:01,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:01,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:01,153 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:53:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:02,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1943 backedges. 771 proven. 841 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-11-23 02:53:02,752 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:02,752 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:53:02,752 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 836 with the following transitions: [2018-11-23 02:53:02,752 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], [245], [247], [250], [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], [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] [2018-11-23 02:53:02,754 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:53:02,754 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:53:06,643 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:53:06,643 INFO L272 AbstractInterpreter]: Visited 192 different actions 770 times. Merged at 9 different actions 35 times. Widened at 1 different actions 1 times. Performed 8515 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8515 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 11 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-23 02:53:06,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:06,649 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:53:06,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:06,649 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 [2018-11-23 02:53:06,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:06,656 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:53:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:06,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:53:07,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1943 backedges. 1250 proven. 2 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2018-11-23 02:53:07,002 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:53:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1943 backedges. 728 proven. 119 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2018-11-23 02:53:07,334 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:53:07,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-11-23 02:53:07,335 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:53:07,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 02:53:07,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 02:53:07,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-11-23 02:53:07,336 INFO L87 Difference]: Start difference. First operand 4592 states and 4913 transitions. Second operand 20 states. [2018-11-23 02:53:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:10,921 INFO L93 Difference]: Finished difference Result 8977 states and 9687 transitions. [2018-11-23 02:53:10,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-11-23 02:53:10,922 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 835 [2018-11-23 02:53:10,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:53:10,928 INFO L225 Difference]: With dead ends: 8977 [2018-11-23 02:53:10,928 INFO L226 Difference]: Without dead ends: 4103 [2018-11-23 02:53:10,933 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1783 GetRequests, 1707 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1492 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=884, Invalid=4372, Unknown=0, NotChecked=0, Total=5256 [2018-11-23 02:53:10,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2018-11-23 02:53:10,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 3922. [2018-11-23 02:53:10,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3922 states. [2018-11-23 02:53:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 4131 transitions. [2018-11-23 02:53:10,994 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 4131 transitions. Word has length 835 [2018-11-23 02:53:10,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:53:10,995 INFO L480 AbstractCegarLoop]: Abstraction has 3922 states and 4131 transitions. [2018-11-23 02:53:10,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 02:53:10,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 4131 transitions. [2018-11-23 02:53:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2018-11-23 02:53:11,005 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:53:11,006 INFO L402 BasicCegarLoop]: trace histogram [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, 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, 8, 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, 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] [2018-11-23 02:53:11,006 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:53:11,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:11,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1300355757, now seen corresponding path program 1 times [2018-11-23 02:53:11,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:53:11,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:11,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:11,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:11,007 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:53:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3037 backedges. 665 proven. 1393 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2018-11-23 02:53:12,610 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:12,610 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:53:12,610 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1009 with the following transitions: [2018-11-23 02:53:12,611 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], [245], [247], [250], [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], [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], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 02:53:12,613 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:53:12,613 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:53:16,511 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:53:16,511 INFO L272 AbstractInterpreter]: Visited 194 different actions 779 times. Merged at 10 different actions 36 times. Widened at 1 different actions 1 times. Performed 8621 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8621 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 6 different actions. Largest state had 24 variables. [2018-11-23 02:53:16,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:16,512 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:53:16,512 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:16,512 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 [2018-11-23 02:53:16,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:16,519 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:53:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:16,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:53:16,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3037 backedges. 1025 proven. 2 refuted. 0 times theorem prover too weak. 2010 trivial. 0 not checked. [2018-11-23 02:53:16,996 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:53:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3037 backedges. 1025 proven. 2 refuted. 0 times theorem prover too weak. 2010 trivial. 0 not checked. [2018-11-23 02:53:17,813 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:53:17,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-11-23 02:53:17,813 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:53:17,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-23 02:53:17,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-23 02:53:17,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2018-11-23 02:53:17,815 INFO L87 Difference]: Start difference. First operand 3922 states and 4131 transitions. Second operand 18 states. [2018-11-23 02:53:20,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:20,932 INFO L93 Difference]: Finished difference Result 7972 states and 8437 transitions. [2018-11-23 02:53:20,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-11-23 02:53:20,932 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1008 [2018-11-23 02:53:20,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:53:20,937 INFO L225 Difference]: With dead ends: 7972 [2018-11-23 02:53:20,937 INFO L226 Difference]: Without dead ends: 4036 [2018-11-23 02:53:20,940 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2093 GetRequests, 2034 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 945 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=665, Invalid=2875, Unknown=0, NotChecked=0, Total=3540 [2018-11-23 02:53:20,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2018-11-23 02:53:20,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 3742. [2018-11-23 02:53:20,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2018-11-23 02:53:20,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3880 transitions. [2018-11-23 02:53:20,977 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3880 transitions. Word has length 1008 [2018-11-23 02:53:20,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:53:20,977 INFO L480 AbstractCegarLoop]: Abstraction has 3742 states and 3880 transitions. [2018-11-23 02:53:20,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-23 02:53:20,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3880 transitions. [2018-11-23 02:53:20,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1138 [2018-11-23 02:53:20,983 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:53:20,983 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, 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, 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] [2018-11-23 02:53:20,984 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:53:20,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:20,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1908903455, now seen corresponding path program 1 times [2018-11-23 02:53:20,984 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:53:20,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:20,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:20,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:20,984 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:53:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3950 backedges. 1648 proven. 355 refuted. 0 times theorem prover too weak. 1947 trivial. 0 not checked. [2018-11-23 02:53:21,652 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:21,652 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:53:21,652 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1138 with the following transitions: [2018-11-23 02:53:21,652 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], [245], [247], [250], [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] [2018-11-23 02:53:21,654 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:53:21,654 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:53:25,558 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:53:25,558 INFO L272 AbstractInterpreter]: Visited 195 different actions 781 times. Merged at 12 different actions 34 times. Never widened. Performed 8616 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8616 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 02:53:25,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:25,560 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:53:25,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:25,560 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 [2018-11-23 02:53:25,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:25,566 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:53:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:25,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:53:26,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3950 backedges. 2434 proven. 6 refuted. 0 times theorem prover too weak. 1510 trivial. 0 not checked. [2018-11-23 02:53:26,124 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:53:26,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3950 backedges. 1648 proven. 359 refuted. 0 times theorem prover too weak. 1943 trivial. 0 not checked. [2018-11-23 02:53:26,716 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:53:26,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2018-11-23 02:53:26,717 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:53:26,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 02:53:26,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 02:53:26,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-11-23 02:53:26,718 INFO L87 Difference]: Start difference. First operand 3742 states and 3880 transitions. Second operand 9 states. [2018-11-23 02:53:27,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:27,638 INFO L93 Difference]: Finished difference Result 8141 states and 8486 transitions. [2018-11-23 02:53:27,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 02:53:27,638 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1137 [2018-11-23 02:53:27,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:53:27,644 INFO L225 Difference]: With dead ends: 8141 [2018-11-23 02:53:27,644 INFO L226 Difference]: Without dead ends: 4589 [2018-11-23 02:53:27,647 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2299 GetRequests, 2276 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2018-11-23 02:53:27,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4589 states. [2018-11-23 02:53:27,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4589 to 3926. [2018-11-23 02:53:27,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3926 states. [2018-11-23 02:53:27,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3926 states to 3926 states and 4068 transitions. [2018-11-23 02:53:27,687 INFO L78 Accepts]: Start accepts. Automaton has 3926 states and 4068 transitions. Word has length 1137 [2018-11-23 02:53:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:53:27,687 INFO L480 AbstractCegarLoop]: Abstraction has 3926 states and 4068 transitions. [2018-11-23 02:53:27,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 02:53:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3926 states and 4068 transitions. [2018-11-23 02:53:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1386 [2018-11-23 02:53:27,697 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:53:27,697 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:53:27,697 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:53:27,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:27,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1054917965, now seen corresponding path program 1 times [2018-11-23 02:53:27,698 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:53:27,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:27,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:27,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:27,699 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:53:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 6102 backedges. 1295 proven. 3040 refuted. 0 times theorem prover too weak. 1767 trivial. 0 not checked. [2018-11-23 02:53:29,465 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:29,465 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:53:29,465 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1386 with the following transitions: [2018-11-23 02:53:29,465 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], [245], [247], [250], [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], [726], [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], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 02:53:29,467 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:53:29,468 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:53:33,371 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:53:33,371 INFO L272 AbstractInterpreter]: Visited 197 different actions 793 times. Merged at 12 different actions 38 times. Widened at 1 different actions 1 times. Performed 8850 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8850 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 18 fixpoints after 9 different actions. Largest state had 24 variables. [2018-11-23 02:53:33,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:33,373 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:53:33,373 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:33,373 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 [2018-11-23 02:53:33,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:33,379 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:53:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:33,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:53:34,111 INFO L134 CoverageAnalysis]: Checked inductivity of 6102 backedges. 3163 proven. 2 refuted. 0 times theorem prover too weak. 2937 trivial. 0 not checked. [2018-11-23 02:53:34,111 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:53:35,241 INFO L134 CoverageAnalysis]: Checked inductivity of 6102 backedges. 1339 proven. 244 refuted. 0 times theorem prover too weak. 4519 trivial. 0 not checked. [2018-11-23 02:53:35,256 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:53:35,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-11-23 02:53:35,256 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:53:35,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 02:53:35,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 02:53:35,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-11-23 02:53:35,258 INFO L87 Difference]: Start difference. First operand 3926 states and 4068 transitions. Second operand 20 states. [2018-11-23 02:53:39,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:39,188 INFO L93 Difference]: Finished difference Result 8625 states and 9507 transitions. [2018-11-23 02:53:39,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-11-23 02:53:39,189 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 1385 [2018-11-23 02:53:39,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:53:39,204 INFO L225 Difference]: With dead ends: 8625 [2018-11-23 02:53:39,204 INFO L226 Difference]: Without dead ends: 4889 [2018-11-23 02:53:39,210 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2861 GetRequests, 2790 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1478 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=978, Invalid=4134, Unknown=0, NotChecked=0, Total=5112 [2018-11-23 02:53:39,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4889 states. [2018-11-23 02:53:39,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4889 to 3926. [2018-11-23 02:53:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3926 states. [2018-11-23 02:53:39,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3926 states to 3926 states and 4054 transitions. [2018-11-23 02:53:39,279 INFO L78 Accepts]: Start accepts. Automaton has 3926 states and 4054 transitions. Word has length 1385 [2018-11-23 02:53:39,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:53:39,279 INFO L480 AbstractCegarLoop]: Abstraction has 3926 states and 4054 transitions. [2018-11-23 02:53:39,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 02:53:39,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3926 states and 4054 transitions. [2018-11-23 02:53:39,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1691 [2018-11-23 02:53:39,292 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:53:39,292 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, 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, 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] [2018-11-23 02:53:39,292 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:53:39,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:39,293 INFO L82 PathProgramCache]: Analyzing trace with hash 245384140, now seen corresponding path program 1 times [2018-11-23 02:53:39,293 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:53:39,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:39,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:39,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:39,294 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:53:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 1915 proven. 5275 refuted. 0 times theorem prover too weak. 1635 trivial. 0 not checked. [2018-11-23 02:53:42,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:42,605 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:53:42,605 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1691 with the following transitions: [2018-11-23 02:53:42,606 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], [245], [247], [250], [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] [2018-11-23 02:53:42,608 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:53:42,608 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:53:46,524 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:53:46,524 INFO L272 AbstractInterpreter]: Visited 202 different actions 812 times. Merged at 11 different actions 37 times. Widened at 1 different actions 2 times. Performed 9124 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9124 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 20 fixpoints after 12 different actions. Largest state had 24 variables. [2018-11-23 02:53:46,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:46,533 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:53:46,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:53:46,533 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/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 [2018-11-23 02:53:46,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:46,539 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:53:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:46,707 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:53:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 2841 proven. 82 refuted. 0 times theorem prover too weak. 5902 trivial. 0 not checked. [2018-11-23 02:53:47,552 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:53:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 2915 proven. 121 refuted. 0 times theorem prover too weak. 5789 trivial. 0 not checked. [2018-11-23 02:53:49,077 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:53:49,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 8, 9] total 39 [2018-11-23 02:53:49,078 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:53:49,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-23 02:53:49,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-23 02:53:49,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1312, Unknown=0, NotChecked=0, Total=1482 [2018-11-23 02:53:49,079 INFO L87 Difference]: Start difference. First operand 3926 states and 4054 transitions. Second operand 33 states. [2018-11-23 02:53:59,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:59,092 INFO L93 Difference]: Finished difference Result 9014 states and 9483 transitions. [2018-11-23 02:53:59,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-11-23 02:53:59,092 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1690 [2018-11-23 02:53:59,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:53:59,100 INFO L225 Difference]: With dead ends: 9014 [2018-11-23 02:53:59,100 INFO L226 Difference]: Without dead ends: 5090 [2018-11-23 02:53:59,107 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3564 GetRequests, 3414 SyntacticMatches, 3 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7169 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=3516, Invalid=18536, Unknown=0, NotChecked=0, Total=22052 [2018-11-23 02:53:59,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5090 states. [2018-11-23 02:53:59,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5090 to 4112. [2018-11-23 02:53:59,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4112 states. [2018-11-23 02:53:59,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 4212 transitions. [2018-11-23 02:53:59,156 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 4212 transitions. Word has length 1690 [2018-11-23 02:53:59,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:53:59,157 INFO L480 AbstractCegarLoop]: Abstraction has 4112 states and 4212 transitions. [2018-11-23 02:53:59,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-23 02:53:59,157 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 4212 transitions. [2018-11-23 02:53:59,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1943 [2018-11-23 02:53:59,172 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:53:59,173 INFO L402 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 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, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 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, 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] [2018-11-23 02:53:59,173 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:53:59,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:59,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1961048688, now seen corresponding path program 1 times [2018-11-23 02:53:59,173 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:53:59,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:59,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:59,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:59,174 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:53:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:54:02,775 INFO L134 CoverageAnalysis]: Checked inductivity of 11966 backedges. 2511 proven. 6788 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2018-11-23 02:54:02,776 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:54:02,776 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:54:02,776 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1943 with the following transitions: [2018-11-23 02:54:02,776 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], [245], [247], [250], [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], [718], [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] [2018-11-23 02:54:02,777 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:54:02,778 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:54:06,704 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:54:06,704 INFO L272 AbstractInterpreter]: Visited 203 different actions 817 times. Merged at 11 different actions 38 times. Widened at 1 different actions 1 times. Performed 9178 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9178 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 21 fixpoints after 11 different actions. Largest state had 24 variables. [2018-11-23 02:54:06,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:54:06,705 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:54:06,705 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:54:06,705 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 02:54:06,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:54:06,712 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:54:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:54:06,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:54:08,892 WARN L180 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2018-11-23 02:54:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 11966 backedges. 5770 proven. 12 refuted. 0 times theorem prover too weak. 6184 trivial. 0 not checked. [2018-11-23 02:54:09,889 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:54:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 11966 backedges. 4301 proven. 718 refuted. 0 times theorem prover too weak. 6947 trivial. 0 not checked. [2018-11-23 02:54:13,664 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:54:13,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 9, 11] total 41 [2018-11-23 02:54:13,665 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:54:13,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-23 02:54:13,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-23 02:54:13,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1447, Unknown=1, NotChecked=0, Total=1640 [2018-11-23 02:54:13,666 INFO L87 Difference]: Start difference. First operand 4112 states and 4212 transitions. Second operand 33 states. [2018-11-23 02:54:22,274 WARN L180 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2018-11-23 02:54:32,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:54:32,235 INFO L93 Difference]: Finished difference Result 10757 states and 11313 transitions. [2018-11-23 02:54:32,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2018-11-23 02:54:32,235 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1942 [2018-11-23 02:54:32,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:54:32,244 INFO L225 Difference]: With dead ends: 10757 [2018-11-23 02:54:32,244 INFO L226 Difference]: Without dead ends: 5991 [2018-11-23 02:54:32,251 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4081 GetRequests, 3920 SyntacticMatches, 3 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8014 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=4110, Invalid=21328, Unknown=2, NotChecked=0, Total=25440 [2018-11-23 02:54:32,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2018-11-23 02:54:32,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 4269. [2018-11-23 02:54:32,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4269 states. [2018-11-23 02:54:32,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4269 states to 4269 states and 4343 transitions. [2018-11-23 02:54:32,324 INFO L78 Accepts]: Start accepts. Automaton has 4269 states and 4343 transitions. Word has length 1942 [2018-11-23 02:54:32,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:54:32,324 INFO L480 AbstractCegarLoop]: Abstraction has 4269 states and 4343 transitions. [2018-11-23 02:54:32,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-23 02:54:32,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4269 states and 4343 transitions. [2018-11-23 02:54:32,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2201 [2018-11-23 02:54:32,343 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:54:32,343 INFO L402 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 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, 12, 12, 12, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 7, 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, 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] [2018-11-23 02:54:32,343 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:54:32,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:54:32,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1114158568, now seen corresponding path program 1 times [2018-11-23 02:54:32,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:54:32,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:54:32,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:54:32,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:54:32,344 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:54:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:54:34,409 INFO L134 CoverageAnalysis]: Checked inductivity of 15194 backedges. 6664 proven. 2405 refuted. 0 times theorem prover too weak. 6125 trivial. 0 not checked. [2018-11-23 02:54:34,409 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:54:34,409 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:54:34,409 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 2201 with the following transitions: [2018-11-23 02:54:34,410 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], [245], [247], [250], [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], [534], [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], [718], [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] [2018-11-23 02:54:34,411 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:54:34,412 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:54:38,342 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:54:38,343 INFO L272 AbstractInterpreter]: Visited 204 different actions 822 times. Merged at 12 different actions 39 times. Widened at 1 different actions 2 times. Performed 9253 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9253 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 22 fixpoints after 13 different actions. Largest state had 24 variables. [2018-11-23 02:54:38,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:54:38,353 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:54:38,353 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:54:38,353 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 02:54:38,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:54:38,360 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:54:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:54:38,580 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:54:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 15194 backedges. 5616 proven. 2 refuted. 0 times theorem prover too weak. 9576 trivial. 0 not checked. [2018-11-23 02:54:39,673 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:54:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 15194 backedges. 2474 proven. 244 refuted. 0 times theorem prover too weak. 12476 trivial. 0 not checked. [2018-11-23 02:54:40,987 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:54:40,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2018-11-23 02:54:40,988 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:54:40,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 02:54:40,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 02:54:40,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-23 02:54:40,989 INFO L87 Difference]: Start difference. First operand 4269 states and 4343 transitions. Second operand 10 states. [2018-11-23 02:54:41,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:54:41,986 INFO L93 Difference]: Finished difference Result 8121 states and 8255 transitions. [2018-11-23 02:54:41,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 02:54:41,987 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 2200 [2018-11-23 02:54:41,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:54:41,991 INFO L225 Difference]: With dead ends: 8121 [2018-11-23 02:54:41,991 INFO L226 Difference]: Without dead ends: 4042 [2018-11-23 02:54:41,994 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4434 GetRequests, 4415 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2018-11-23 02:54:41,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4042 states. [2018-11-23 02:54:42,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 3895. [2018-11-23 02:54:42,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3895 states. [2018-11-23 02:54:42,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3895 states to 3895 states and 3946 transitions. [2018-11-23 02:54:42,033 INFO L78 Accepts]: Start accepts. Automaton has 3895 states and 3946 transitions. Word has length 2200 [2018-11-23 02:54:42,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:54:42,034 INFO L480 AbstractCegarLoop]: Abstraction has 3895 states and 3946 transitions. [2018-11-23 02:54:42,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 02:54:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3895 states and 3946 transitions. [2018-11-23 02:54:42,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2324 [2018-11-23 02:54:42,055 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:54:42,055 INFO L402 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 13, 13, 13, 12, 12, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:54:42,055 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:54:42,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:54:42,055 INFO L82 PathProgramCache]: Analyzing trace with hash 415764510, now seen corresponding path program 1 times [2018-11-23 02:54:42,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:54:42,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:54:42,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:54:42,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:54:42,056 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:54:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:54:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 17161 backedges. 6668 proven. 6104 refuted. 0 times theorem prover too weak. 4389 trivial. 0 not checked. [2018-11-23 02:54:47,198 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:54:47,198 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 02:54:47,198 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 2324 with the following transitions: [2018-11-23 02:54:47,199 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], [245], [247], [250], [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], [534], [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], [718], [719], [723], [726], [727], [731], [735], [738], [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], [906], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 02:54:47,201 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 02:54:47,201 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 02:54:51,679 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 02:54:51,680 INFO L272 AbstractInterpreter]: Visited 206 different actions 1039 times. Merged at 13 different actions 52 times. Widened at 1 different actions 1 times. Performed 12138 root evaluator evaluations with a maximum evaluation depth of 21. Performed 12138 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 40 fixpoints after 14 different actions. Largest state had 24 variables. [2018-11-23 02:54:51,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:54:51,681 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 02:54:51,681 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 02:54:51,681 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 02:54:51,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:54:51,688 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 02:54:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:54:51,934 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:54:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 17161 backedges. 7301 proven. 2 refuted. 0 times theorem prover too weak. 9858 trivial. 0 not checked. [2018-11-23 02:54:53,384 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 02:54:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 17161 backedges. 2546 proven. 372 refuted. 0 times theorem prover too weak. 14243 trivial. 0 not checked. [2018-11-23 02:54:55,983 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 02:54:55,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-11-23 02:54:55,984 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 02:54:55,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 02:54:55,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 02:54:55,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2018-11-23 02:54:55,986 INFO L87 Difference]: Start difference. First operand 3895 states and 3946 transitions. Second operand 20 states. [2018-11-23 02:54:59,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:54:59,217 INFO L93 Difference]: Finished difference Result 5031 states and 5125 transitions. [2018-11-23 02:54:59,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-11-23 02:54:59,218 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 2323 [2018-11-23 02:54:59,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:54:59,219 INFO L225 Difference]: With dead ends: 5031 [2018-11-23 02:54:59,219 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 02:54:59,222 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4734 GetRequests, 4674 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 887 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=730, Invalid=2930, Unknown=0, NotChecked=0, Total=3660 [2018-11-23 02:54:59,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 02:54:59,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 02:54:59,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 02:54:59,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 02:54:59,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2323 [2018-11-23 02:54:59,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:54:59,223 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:54:59,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 02:54:59,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 02:54:59,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 02:54:59,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 02:54:59,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,767 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:54:59,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,381 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,478 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,752 WARN L180 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 859 DAG size of output: 700 [2018-11-23 02:55:00,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:00,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,530 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,612 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:55:01,843 WARN L180 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 837 DAG size of output: 666 [2018-11-23 02:55:03,410 WARN L180 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 406 DAG size of output: 153 [2018-11-23 02:55:06,225 WARN L180 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 687 DAG size of output: 116 [2018-11-23 02:55:08,813 WARN L180 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 654 DAG size of output: 120 [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:55:08,815 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)) [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-23 02:55:08,815 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 02:55:08,816 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-23 02:55:08,817 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,818 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-23 02:55:08,819 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-23 02:55:08,820 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse23 (= 7 |old(~a21~0)|))) (let ((.cse7 (+ |old(~a12~0)| 43)) (.cse27 (= ~a24~0 |old(~a24~0)|)) (.cse18 (= |old(~a15~0)| ~a15~0)) (.cse19 (= 1 ~a24~0)) (.cse21 (not .cse23)) (.cse26 (< 7 |old(~a15~0)|)) (.cse5 (+ ~a12~0 43)) (.cse16 (= ~a12~0 |old(~a12~0)|)) (.cse17 (= ~a21~0 |old(~a21~0)|)) (.cse28 (= ~a24~0 1))) (let ((.cse14 (< |old(~a12~0)| 19)) (.cse4 (not (= 6 |old(~a15~0)|))) (.cse0 (not (= 9 |old(~a21~0)|))) (.cse9 (and .cse16 .cse17 (= 8 ~a15~0) .cse28)) (.cse12 (not (= 8 |old(~a15~0)|))) (.cse13 (= |calculate_output_#in~input| 0)) (.cse22 (not (= |old(~a15~0)| 8))) (.cse24 (<= .cse5 0)) (.cse20 (<= |old(~a12~0)| 80)) (.cse15 (or .cse21 .cse26)) (.cse10 (not (= 10 |old(~a21~0)|))) (.cse11 (< 11 |old(~a12~0)|)) (.cse29 (not (= 8 |old(~a21~0)|))) (.cse1 (not (= 9 |old(~a15~0)|))) (.cse3 (and .cse16 .cse17 .cse19 (= 9 ~a15~0))) (.cse2 (not (= 1 |old(~a24~0)|))) (.cse8 (not (= 5 |old(~a15~0)|))) (.cse30 (and .cse16 .cse27 .cse17 .cse18)) (.cse6 (not (= 6 |old(~a21~0)|))) (.cse25 (< 0 .cse7))) (and (or .cse0 .cse1 (< |old(~a12~0)| 81) .cse2 .cse3) (or .cse4 (= 6 ~a15~0)) (or (and (<= ~a12~0 80) (< 0 .cse5)) .cse6 (< 80 |old(~a12~0)|) (<= .cse7 0) .cse2 .cse8) (or .cse9 (or .cse10 .cse2 .cse11 .cse12 .cse13)) (or .cse14 (or .cse15 .cse2) (and .cse16 .cse17 .cse18 .cse19)) (or .cse10 .cse9 .cse2 .cse12 .cse13 .cse20) (or (or (or .cse13 .cse21 .cse11) .cse2) .cse22 .cse9) (or .cse21 .cse8 (and (= 7 ~a21~0) .cse18)) (or (or (= 0 |old(~a21~0)|) (< 76 |old(~a12~0)|) .cse23 .cse13) .cse9 .cse14 .cse2 .cse22) (or .cse24 .cse4 .cse25) (or .cse2 .cse26 (and .cse27 .cse24 .cse17 .cse18) .cse25) (or .cse9 (< |old(~a12~0)| 286349) (or .cse6 .cse2 .cse12 .cse13)) (or .cse9 (or .cse0 .cse11 .cse13) .cse2 .cse22) (or .cse6 .cse9 .cse2 .cse12 .cse13 .cse25) (or (and .cse16 (= ~a21~0 8) .cse18 .cse28) .cse13 .cse20 .cse22 .cse29 .cse2 (< 73282 |old(~a12~0)|)) (or .cse24 .cse21 .cse8 .cse25) (or (and .cse21 .cse29) .cse1 .cse30 .cse2 .cse20) (or .cse1 (or .cse10 .cse2 .cse20) (and (and .cse16 .cse27) .cse17 .cse18)) (or .cse6 (<= ~a12~0 11) .cse2 .cse8 .cse11) (or (< 0 (+ |old(~a12~0)| 460233)) .cse15 .cse16 .cse2) (or .cse3 .cse1 (or .cse6 .cse2) (< 95434 |old(~a12~0)|) (<= |old(~a12~0)| 95380)) (or .cse29 .cse3 .cse1 .cse2 .cse11) (or .cse1 .cse10 .cse2 .cse11 .cse3) (or (< 72 |old(~a12~0)|) .cse29 .cse1 .cse3 .cse2 (<= |old(~a12~0)| 18)) (or .cse23 .cse2 (and .cse27 .cse17 .cse18) .cse26) (or .cse8 .cse30 .cse6 .cse25))))) [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-23 02:55:08,821 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,822 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,823 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-23 02:55:08,824 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-23 02:55:08,825 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-23 02:55:08,826 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:55:08,826 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)) [2018-11-23 02:55:08,827 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:55:08,827 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:55:08,827 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (= (+ ~a12~0 49) 0) (= 7 ~a21~0) (= |old(~a15~0)| ~a15~0) (= ~a24~0 1))) [2018-11-23 02:55:08,827 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-23 02:55:08,827 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse9 (= 7 ~a21~0)) (.cse21 (not (= 1 |old(~a24~0)|))) (.cse14 (= 9 ~a21~0))) (let ((.cse22 (not .cse14)) (.cse12 (= 1 ~a24~0)) (.cse25 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse21)) (.cse23 (not (= ~a21~0 0))) (.cse20 (not .cse9)) (.cse10 (not (= main_~input~0 0))) (.cse18 (= ~a15~0 8)) (.cse24 (= ~a24~0 1))) (let ((.cse2 (and .cse23 .cse20 .cse10 .cse18 .cse24)) (.cse16 (<= (+ ~a12~0 43) 0)) (.cse11 (= 8 ~a15~0)) (.cse15 (<= ~a15~0 7)) (.cse19 (= 5 ~a15~0)) (.cse6 (= ~a24~0 |old(~a24~0)|)) (.cse17 (= ~a21~0 6)) (.cse4 (= 8 ~a21~0)) (.cse13 (and .cse22 .cse20 .cse12 .cse25)) (.cse3 (<= 19 ~a12~0)) (.cse7 (= 9 ~a15~0)) (.cse1 (< 80 ~a12~0)) (.cse0 (and .cse22 .cse23 .cse20 .cse10 .cse18 .cse24 .cse25)) (.cse5 (<= ~a12~0 11)) (.cse8 (= ~a21~0 10))) (or (not (= 8 |old(~a15~0)|)) (and (and (<= ~a12~0 73282) (and .cse0 (= ~a21~0 8))) .cse1) (and (and (<= ~a12~0 76) .cse2) .cse3) (and (and .cse4 .cse5) .cse6 .cse7) (and (and .cse8 .cse5) .cse6 .cse7) (= 6 ~a15~0) (and (and (and (and .cse9 .cse10) .cse5) .cse11) .cse12) (and (and .cse13 .cse8 .cse1) .cse7) (and .cse14 .cse5 .cse2) (not (= 7 |old(~a21~0)|)) (and .cse15 .cse6 .cse16) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse17 .cse10 .cse18 .cse6 .cse16) (and (or (and .cse12 .cse9) (and .cse4 .cse13)) .cse1 .cse7) (and .cse17 .cse16 .cse19) (and .cse14 (and .cse6 .cse1) .cse7) (and (<= 286349 ~a12~0) (and (and (and .cse17 .cse10) .cse11) .cse12)) (and (and .cse12 .cse15) .cse3) (and .cse20 .cse12 .cse15) (and .cse9 .cse19) (and .cse6 .cse7 (and (<= ~a12~0 95434) .cse17 (< 95380 ~a12~0))) .cse21 (and (and .cse4 (and .cse13 (<= ~a12~0 72)) .cse3) .cse7) (and .cse1 (and .cse0 .cse8)) (and (and .cse0 .cse5) .cse8))))) [2018-11-23 02:55:08,827 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-23 02:55:08,827 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-23 02:55:08,828 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse21 (not (= 1 |old(~a24~0)|))) (.cse8 (= 7 ~a21~0)) (.cse13 (= 9 ~a21~0))) (let ((.cse3 (not (= ~a21~0 0))) (.cse5 (= ~a15~0 8)) (.cse6 (= ~a24~0 1)) (.cse22 (not .cse13)) (.cse4 (not .cse8)) (.cse19 (= 1 ~a24~0)) (.cse23 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse21))) (let ((.cse2 (<= ~a12~0 11)) (.cse18 (<= (+ ~a12~0 43) 0)) (.cse12 (= 8 ~a15~0)) (.cse17 (<= ~a15~0 7)) (.cse20 (= 5 ~a15~0)) (.cse9 (= ~a24~0 |old(~a24~0)|)) (.cse14 (= ~a21~0 6)) (.cse10 (= 8 ~a21~0)) (.cse15 (and .cse22 .cse4 .cse19 .cse23)) (.cse7 (<= 19 ~a12~0)) (.cse11 (= 9 ~a15~0)) (.cse16 (< 80 ~a12~0)) (.cse1 (and .cse22 .cse3 .cse4 .cse5 .cse6 .cse23)) (.cse0 (= ~a21~0 10))) (or (and .cse0 (and .cse1 .cse2)) (not (= 8 |old(~a15~0)|)) (and (and (<= ~a12~0 76) (and .cse3 .cse4 .cse5 .cse6)) .cse7) (and (and .cse8 .cse2) .cse9 (= |old(~a15~0)| ~a15~0)) (and (and .cse10 .cse2) .cse9 .cse11) (and .cse12 .cse13 .cse9 .cse2) (and (and .cse0 .cse2) .cse9 .cse11) (and (<= 286349 ~a12~0) (and (and .cse14 .cse9) .cse12)) (= 6 ~a15~0) (and (and .cse15 .cse0 .cse16) .cse11) (not (= 7 |old(~a21~0)|)) (and .cse17 .cse9 .cse18) (not (= 0 (+ |old(~a12~0)| 49))) (and (or (and .cse19 .cse8) (and .cse10 .cse15)) .cse16 .cse11) (and .cse14 .cse18 .cse20) (and (and .cse14 .cse6 .cse18) .cse12) (and .cse13 (and .cse9 .cse16) .cse11) (and .cse16 (and (<= ~a12~0 73282) (and .cse1 (= ~a21~0 8)))) (and (and .cse19 .cse17) .cse7) (and .cse4 .cse19 .cse17) (and .cse8 .cse20) (and .cse9 .cse11 (and (<= ~a12~0 95434) .cse14 (< 95380 ~a12~0))) .cse21 (and (and .cse10 (and .cse15 (<= ~a12~0 72)) .cse7) .cse11) (and .cse16 (and .cse1 .cse0)))))) [2018-11-23 02:55:08,828 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-11-23 02:55:08,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:55:08 BoogieIcfgContainer [2018-11-23 02:55:08,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:55:08,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:55:08,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:55:08,841 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:55:08,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:59" (3/4) ... [2018-11-23 02:55:08,844 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 02:55:08,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 02:55:08,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 02:55:08,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 02:55:08,860 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 02:55:08,861 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 02:55:08,886 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((a21 == 10 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a12 <= 11) || !(8 == \old(a15))) || ((a12 <= 76 && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && 19 <= a12)) || (((7 == a21 && a12 <= 11) && a24 == \old(a24)) && \old(a15) == a15)) || (((8 == a21 && a12 <= 11) && a24 == \old(a24)) && 9 == a15)) || (((8 == a15 && 9 == a21) && a24 == \old(a24)) && a12 <= 11)) || (((a21 == 10 && a12 <= 11) && a24 == \old(a24)) && 9 == a15)) || (286349 <= a12 && (a21 == 6 && a24 == \old(a24)) && 8 == a15)) || 6 == a15) || ((((((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 10) && 80 < a12) && 9 == a15)) || !(7 == \old(a21))) || ((a15 <= 7 && a24 == \old(a24)) && a12 + 43 <= 0)) || !(0 == \old(a12) + 49)) || ((((1 == a24 && 7 == a21) || (8 == a21 && ((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))))) && 80 < a12) && 9 == a15)) || ((a21 == 6 && a12 + 43 <= 0) && 5 == a15)) || (((a21 == 6 && a24 == 1) && a12 + 43 <= 0) && 8 == a15)) || ((9 == a21 && a24 == \old(a24) && 80 < a12) && 9 == a15)) || (80 < a12 && a12 <= 73282 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 8)) || ((1 == a24 && a15 <= 7) && 19 <= a12)) || ((!(7 == a21) && 1 == a24) && a15 <= 7)) || (7 == a21 && 5 == a15)) || ((a24 == \old(a24) && 9 == a15) && (a12 <= 95434 && a21 == 6) && 95380 < a12)) || !(1 == \old(a24))) || (((8 == a21 && (((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a12 <= 72) && 19 <= a12) && 9 == a15)) || (80 < a12 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 10) [2018-11-23 02:55:08,974 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_45989ddf-b1fc-49ab-9a4a-c6ea727eda08/bin-2019/utaipan/witness.graphml [2018-11-23 02:55:08,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:55:08,975 INFO L168 Benchmark]: Toolchain (without parser) took 251111.32 ms. Allocated memory was 1.0 GB in the beginning and 5.1 GB in the end (delta: 4.0 GB). Free memory was 956.6 MB in the beginning and 3.2 GB in the end (delta: -2.3 GB). Peak memory consumption was 1.8 GB. Max. memory is 11.5 GB. [2018-11-23 02:55:08,975 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:55:08,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.52 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 913.6 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-23 02:55:08,976 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 913.6 MB in the beginning and 1.1 GB in the end (delta: -201.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-23 02:55:08,976 INFO L168 Benchmark]: Boogie Preprocessor took 53.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 02:55:08,976 INFO L168 Benchmark]: RCFGBuilder took 1043.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 990.6 MB in the end (delta: 119.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. [2018-11-23 02:55:08,976 INFO L168 Benchmark]: TraceAbstraction took 249405.34 ms. Allocated memory was 1.1 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 988.0 MB in the beginning and 3.3 GB in the end (delta: -2.3 GB). Peak memory consumption was 4.4 GB. Max. memory is 11.5 GB. [2018-11-23 02:55:08,977 INFO L168 Benchmark]: Witness Printer took 133.49 ms. Allocated memory is still 5.1 GB. Free memory was 3.3 GB in the beginning and 3.2 GB in the end (delta: 82.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:55:08,978 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 387.52 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 913.6 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 85.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 913.6 MB in the beginning and 1.1 GB in the end (delta: -201.9 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1043.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 990.6 MB in the end (delta: 119.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 249405.34 ms. Allocated memory was 1.1 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 988.0 MB in the beginning and 3.3 GB in the end (delta: -2.3 GB). Peak memory consumption was 4.4 GB. Max. memory is 11.5 GB. * Witness Printer took 133.49 ms. Allocated memory is still 5.1 GB. Free memory was 3.3 GB in the beginning and 3.2 GB in the end (delta: 82.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 112]: 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: ((((((((((((((((((((((((a21 == 10 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a12 <= 11) || !(8 == \old(a15))) || ((a12 <= 76 && ((!(a21 == 0) && !(7 == a21)) && a15 == 8) && a24 == 1) && 19 <= a12)) || (((7 == a21 && a12 <= 11) && a24 == \old(a24)) && \old(a15) == a15)) || (((8 == a21 && a12 <= 11) && a24 == \old(a24)) && 9 == a15)) || (((8 == a15 && 9 == a21) && a24 == \old(a24)) && a12 <= 11)) || (((a21 == 10 && a12 <= 11) && a24 == \old(a24)) && 9 == a15)) || (286349 <= a12 && (a21 == 6 && a24 == \old(a24)) && 8 == a15)) || 6 == a15) || ((((((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 10) && 80 < a12) && 9 == a15)) || !(7 == \old(a21))) || ((a15 <= 7 && a24 == \old(a24)) && a12 + 43 <= 0)) || !(0 == \old(a12) + 49)) || ((((1 == a24 && 7 == a21) || (8 == a21 && ((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24))))) && 80 < a12) && 9 == a15)) || ((a21 == 6 && a12 + 43 <= 0) && 5 == a15)) || (((a21 == 6 && a24 == 1) && a12 + 43 <= 0) && 8 == a15)) || ((9 == a21 && a24 == \old(a24) && 80 < a12) && 9 == a15)) || (80 < a12 && a12 <= 73282 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 8)) || ((1 == a24 && a15 <= 7) && 19 <= a12)) || ((!(7 == a21) && 1 == a24) && a15 <= 7)) || (7 == a21 && 5 == a15)) || ((a24 == \old(a24) && 9 == a15) && (a12 <= 95434 && a21 == 6) && 95380 < a12)) || !(1 == \old(a24))) || (((8 == a21 && (((!(9 == a21) && !(7 == a21)) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a12 <= 72) && 19 <= a12) && 9 == a15)) || (80 < a12 && (((((!(9 == a21) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && a21 == 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 249.3s OverallTime, 20 OverallIterations, 19 TraceHistogramMax, 133.0s AutomataDifference, 0.0s DeadEndRemovalTime, 9.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 2181 SDtfs, 59132 SDslu, 5455 SDs, 0 SdLazy, 86255 SolverSat, 9344 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 98.1s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 33581 GetRequests, 32717 SyntacticMatches, 29 SemanticMatches, 835 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22754 ImplicationChecksByTransitivity, 24.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7492occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 55.4s AbstIntTime, 17 AbstIntIterations, 4 AbstIntStrong, 0.997245757025407 AbsIntWeakeningRatio, 0.09071580439404678 AbsIntAvgWeakeningVarsNumRemoved, 16.20340184266478 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 20 MinimizatonAttempts, 6102 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 456 PreInvPairs, 624 NumberOfFragments, 1780 HoareAnnotationTreeSize, 456 FomulaSimplifications, 47742501 FormulaSimplificationTreeSizeReduction, 2.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7505133 FormulaSimplificationTreeSizeReductionInter, 6.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 27.9s InterpolantComputationTime, 32803 NumberOfCodeBlocks, 32803 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 48299 ConstructedInterpolants, 256 QuantifiedInterpolants, 261959032 SizeOfPredicates, 21 NumberOfNonLiveVariables, 21567 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 46 InterpolantComputations, 3 PerfectInterpolantSequences, 193303/224280 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...