./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem06_label00_false-unreach-call.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_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem06_label00_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/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 5833aa667220d939784963858fed7a7fea3ff738 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished with exit code -9 Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 04:36:20,692 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:36:20,693 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:36:20,700 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:36:20,700 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:36:20,701 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:36:20,702 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:36:20,703 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:36:20,704 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:36:20,705 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:36:20,705 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:36:20,705 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:36:20,706 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:36:20,707 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:36:20,708 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:36:20,708 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:36:20,709 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:36:20,710 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:36:20,711 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:36:20,712 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:36:20,713 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:36:20,714 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:36:20,716 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:36:20,716 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:36:20,716 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:36:20,717 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:36:20,718 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:36:20,718 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:36:20,719 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:36:20,719 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:36:20,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:36:20,720 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:36:20,720 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:36:20,720 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:36:20,721 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:36:20,722 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:36:20,722 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 04:36:20,732 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:36:20,732 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:36:20,733 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:36:20,733 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:36:20,733 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:36:20,734 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:36:20,734 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:36:20,734 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 04:36:20,734 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:36:20,734 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:36:20,734 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 04:36:20,734 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 04:36:20,735 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:36:20,735 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:36:20,735 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:36:20,735 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:36:20,736 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:36:20,736 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:36:20,736 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:36:20,736 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:36:20,736 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:36:20,736 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:36:20,736 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:36:20,736 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:36:20,737 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:36:20,737 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:36:20,737 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:36:20,737 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:36:20,737 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:36:20,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:36:20,738 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:36:20,738 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:36:20,738 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:36:20,738 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 04:36:20,738 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:36:20,738 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 04:36:20,738 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 04:36:20,739 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_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/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 -> 5833aa667220d939784963858fed7a7fea3ff738 [2018-11-23 04:36:20,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:36:20,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:36:20,775 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:36:20,776 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:36:20,776 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:36:20,777 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem06_label00_false-unreach-call.c [2018-11-23 04:36:20,810 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/bin-2019/utaipan/data/9ca3778a1/3639e04fe084440ba4716a9f7a2664a8/FLAGebc81d36e [2018-11-23 04:36:21,414 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:36:21,415 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/sv-benchmarks/c/eca-rers2012/Problem06_label00_false-unreach-call.c [2018-11-23 04:36:21,439 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/bin-2019/utaipan/data/9ca3778a1/3639e04fe084440ba4716a9f7a2664a8/FLAGebc81d36e [2018-11-23 04:36:21,842 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/bin-2019/utaipan/data/9ca3778a1/3639e04fe084440ba4716a9f7a2664a8 [2018-11-23 04:36:21,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:36:21,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:36:21,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:36:21,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:36:21,848 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:36:21,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:36:21" (1/1) ... [2018-11-23 04:36:21,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2c170c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:21, skipping insertion in model container [2018-11-23 04:36:21,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:36:21" (1/1) ... [2018-11-23 04:36:21,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:36:21,987 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:36:23,412 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:36:23,416 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:36:24,345 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:36:24,369 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:36:24,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24 WrapperNode [2018-11-23 04:36:24,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:36:24,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:36:24,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:36:24,370 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:36:24,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (1/1) ... [2018-11-23 04:36:24,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (1/1) ... [2018-11-23 04:36:24,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:36:24,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:36:24,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:36:24,435 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:36:24,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (1/1) ... [2018-11-23 04:36:24,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (1/1) ... [2018-11-23 04:36:24,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (1/1) ... [2018-11-23 04:36:24,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (1/1) ... [2018-11-23 04:36:24,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (1/1) ... [2018-11-23 04:36:24,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (1/1) ... [2018-11-23 04:36:24,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (1/1) ... [2018-11-23 04:36:24,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:36:24,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:36:24,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:36:24,749 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:36:24,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/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 04:36:24,800 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 04:36:24,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 04:36:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 04:36:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-23 04:36:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-23 04:36:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-23 04:36:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-23 04:36:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-23 04:36:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-23 04:36:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-23 04:36:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-23 04:36:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 04:36:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 04:36:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:36:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:36:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 04:36:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 04:36:29,120 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:36:29,120 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 04:36:29,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:36:29 BoogieIcfgContainer [2018-11-23 04:36:29,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:36:29,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:36:29,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:36:29,123 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:36:29,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:36:21" (1/3) ... [2018-11-23 04:36:29,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fc194f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:36:29, skipping insertion in model container [2018-11-23 04:36:29,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:36:24" (2/3) ... [2018-11-23 04:36:29,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fc194f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:36:29, skipping insertion in model container [2018-11-23 04:36:29,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:36:29" (3/3) ... [2018-11-23 04:36:29,125 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label00_false-unreach-call.c [2018-11-23 04:36:29,132 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:36:29,138 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 04:36:29,150 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 04:36:29,189 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:36:29,189 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:36:29,189 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:36:29,189 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:36:29,190 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:36:29,190 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:36:29,190 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:36:29,190 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:36:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2018-11-23 04:36:29,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2018-11-23 04:36:29,258 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:36:29,259 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:29,261 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:36:29,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:36:29,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1727705073, now seen corresponding path program 1 times [2018-11-23 04:36:29,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:36:29,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:36:29,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:36:29,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:36:29,310 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:36:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:36:31,274 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 04:36:31,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:36:31,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 04:36:31,276 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:36:31,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 04:36:31,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 04:36:31,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:36:31,293 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 3 states. [2018-11-23 04:36:34,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:36:34,849 INFO L93 Difference]: Finished difference Result 3733 states and 6970 transitions. [2018-11-23 04:36:34,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 04:36:34,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 950 [2018-11-23 04:36:34,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:36:34,875 INFO L225 Difference]: With dead ends: 3733 [2018-11-23 04:36:34,876 INFO L226 Difference]: Without dead ends: 2416 [2018-11-23 04:36:34,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:36:34,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2018-11-23 04:36:34,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2397. [2018-11-23 04:36:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2397 states. [2018-11-23 04:36:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 4261 transitions. [2018-11-23 04:36:34,976 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 4261 transitions. Word has length 950 [2018-11-23 04:36:34,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:36:34,979 INFO L480 AbstractCegarLoop]: Abstraction has 2397 states and 4261 transitions. [2018-11-23 04:36:34,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 04:36:34,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 4261 transitions. [2018-11-23 04:36:34,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2018-11-23 04:36:34,998 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:36:34,998 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:34,999 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:36:34,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:36:34,999 INFO L82 PathProgramCache]: Analyzing trace with hash 686952186, now seen corresponding path program 1 times [2018-11-23 04:36:35,000 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:36:35,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:36:35,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:36:35,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:36:35,001 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:36:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:36:35,398 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:36:35,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:36:35,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 04:36:35,398 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:36:35,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 04:36:35,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 04:36:35,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 04:36:35,401 INFO L87 Difference]: Start difference. First operand 2397 states and 4261 transitions. Second operand 5 states. [2018-11-23 04:36:40,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:36:40,029 INFO L93 Difference]: Finished difference Result 5938 states and 10525 transitions. [2018-11-23 04:36:40,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 04:36:40,030 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 958 [2018-11-23 04:36:40,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:36:40,043 INFO L225 Difference]: With dead ends: 5938 [2018-11-23 04:36:40,043 INFO L226 Difference]: Without dead ends: 3547 [2018-11-23 04:36:40,048 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 04:36:40,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3547 states. [2018-11-23 04:36:40,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3547 to 3489. [2018-11-23 04:36:40,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3489 states. [2018-11-23 04:36:40,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 5592 transitions. [2018-11-23 04:36:40,119 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 5592 transitions. Word has length 958 [2018-11-23 04:36:40,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:36:40,120 INFO L480 AbstractCegarLoop]: Abstraction has 3489 states and 5592 transitions. [2018-11-23 04:36:40,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 04:36:40,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 5592 transitions. [2018-11-23 04:36:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2018-11-23 04:36:40,131 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:36:40,131 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:40,132 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:36:40,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:36:40,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1189125795, now seen corresponding path program 1 times [2018-11-23 04:36:40,132 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:36:40,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:36:40,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:36:40,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:36:40,133 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:36:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:36:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:36:40,699 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:36:40,699 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:36:40,700 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 971 with the following transitions: [2018-11-23 04:36:40,703 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [17], [28], [32], [36], [40], [51], [55], [59], [63], [67], [71], [82], [86], [90], [101], [105], [109], [113], [117], [121], [125], [129], [133], [137], [141], [145], [149], [153], [157], [161], [165], [169], [173], [177], [181], [185], [189], [193], [197], [201], [212], [216], [220], [227], [235], [243], [251], [259], [267], [271], [273], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2888], [2892], [2896], [2900], [2904], [2908], [2912], [2916], [2920], [2924], [2935], [2939], [2943], [2947], [2958], [2962], [2966], [2970], [2981], [2985], [2989], [2993], [2997], [3001], [3005], [3009], [3013], [3017], [3021], [3025], [3029], [3033], [3044], [3048], [3052], [3056], [3060], [3064], [3068], [3072], [3076], [3080], [3084], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3123], [3127], [3131], [3135], [3139], [3143], [3147], [3158], [3162], [3166], [3170], [3174], [3185], [3196], [3200], [3204], [3208], [3219], [3223], [3227], [3231], [3235], [3239], [3243], [3247], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3364], [3368], [3372], [3376], [3380], [3391], [3395], [3406], [3417], [3421], [3425], [3429], [3433], [3437], [3441], [3445], [3449], [3453], [3457], [3461], [3465], [3469], [3480], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3519], [3523], [3527], [3531], [3542], [3553], [3557], [3561], [3565], [3569], [3573], [3577], [3581], [3585], [3589], [3593], [3597], [3601], [3605], [3609], [3613], [3617], [3621], [3625], [3629], [3633], [3637], [3641], [3645], [3649], [3653], [3657], [3661], [3665], [3669], [3673], [3677], [3681], [3685], [3689], [3700], [3704], [3708], [3712], [3716], [3720], [3724], [3728], [3732], [3736], [3740], [3744], [3748], [3752], [3756], [3767], [3771], [3775], [3779], [3783], [3787], [3791], [3795], [3799], [3803], [3807], [3811], [3815], [3826], [3830], [3834], [3838], [3842], [3846], [3850], [3854], [3858], [3862], [3873], [3877], [3881], [3885], [3889], [3893], [3897], [3901], [3905], [3909], [3913], [3917], [3928], [3932], [3936], [3940], [3944], [3948], [3952], [3955], [3956], [3960], [3964], [3968], [3971], [3972], [3976], [3987], [3991], [3995], [3999], [4003], [4007], [4011], [4015], [4019], [4023], [4027], [4031], [4035], [4039], [4043], [4047], [4051], [4055], [4059], [4063], [4067], [4078], [4082], [4086], [4097], [4101], [4105], [4109], [4113], [4124], [4128], [4132], [4136], [4140], [4144], [4148], [4152], [4156], [4167], [4178], [4189], [4193], [4197], [4201], [4205], [4209], [4213], [4217], [4221], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4296], [4300], [4304], [4308], [4312], [4316], [4320], [4324], [4328], [4339], [4343], [4347], [4358], [4362], [4366], [4370], [4374], [4378], [4382], [4393], [4404], [4408], [4412], [4416], [4420], [4424], [4428], [4432], [4436], [4440], [4444], [4455], [4459], [4463], [4467], [4471], [4475], [4479], [4483], [4487], [4491], [4495], [4499], [4503], [4507], [4511], [4515], [4519], [4523], [4527], [4531], [4535], [4539], [4543], [4547], [4551], [4555], [4559], [4563], [4567], [4571], [4575], [4579], [4583], [4587], [4598], [4602], [4613], [4617], [4621], [4632], [4636], [4640], [4644], [4648], [4652], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4715], [4719], [4723], [4727], [4731], [4742], [4746], [4750], [4754], [4758], [4762], [4766], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4845], [4856], [4860], [4864], [4868], [4872], [4876], [4880], [4884], [4888], [4899], [4903], [4907], [4911], [4922], [4933], [4937], [4941], [4945], [4949], [4960], [4964], [4968], [4972], [4976], [4980], [4984], [4988], [4999], [5003], [5007], [5010], [5014], [5023], [5027], [5029], [5034], [5036], [5038], [5040], [5042], [5043], [5044], [5046], [5047] [2018-11-23 04:36:40,776 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 04:36:40,776 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 04:36:42,881 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 04:36:42,883 INFO L272 AbstractInterpreter]: Visited 951 different actions 951 times. Never merged. Never widened. Performed 21184 root evaluator evaluations with a maximum evaluation depth of 3. Performed 21184 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 88 variables. [2018-11-23 04:36:42,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:36:42,894 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 04:36:44,862 INFO L227 lantSequenceWeakener]: Weakened 961 states. On average, predicates are now at 69.96% of their original sizes. [2018-11-23 04:36:44,862 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 04:36:45,266 INFO L415 sIntCurrentIteration]: We unified 969 AI predicates to 969 [2018-11-23 04:36:45,266 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 04:36:45,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 04:36:45,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [9] total 35 [2018-11-23 04:36:45,267 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:36:45,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-11-23 04:36:45,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-11-23 04:36:45,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2018-11-23 04:36:45,268 INFO L87 Difference]: Start difference. First operand 3489 states and 5592 transitions. Second operand 28 states. [2018-11-23 04:37:55,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:37:55,056 INFO L93 Difference]: Finished difference Result 7986 states and 12704 transitions. [2018-11-23 04:37:55,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 04:37:55,057 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 970 [2018-11-23 04:37:55,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:37:55,068 INFO L225 Difference]: With dead ends: 7986 [2018-11-23 04:37:55,068 INFO L226 Difference]: Without dead ends: 4503 [2018-11-23 04:37:55,073 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 974 GetRequests, 943 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=187, Invalid=869, Unknown=0, NotChecked=0, Total=1056 [2018-11-23 04:37:55,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4503 states. [2018-11-23 04:37:55,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4503 to 4502. [2018-11-23 04:37:55,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4502 states. [2018-11-23 04:37:55,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4502 states to 4502 states and 6619 transitions. [2018-11-23 04:37:55,150 INFO L78 Accepts]: Start accepts. Automaton has 4502 states and 6619 transitions. Word has length 970 [2018-11-23 04:37:55,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:37:55,150 INFO L480 AbstractCegarLoop]: Abstraction has 4502 states and 6619 transitions. [2018-11-23 04:37:55,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-11-23 04:37:55,151 INFO L276 IsEmpty]: Start isEmpty. Operand 4502 states and 6619 transitions. [2018-11-23 04:37:55,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1093 [2018-11-23 04:37:55,165 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:37:55,166 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:55,166 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:37:55,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:37:55,167 INFO L82 PathProgramCache]: Analyzing trace with hash 545029619, now seen corresponding path program 1 times [2018-11-23 04:37:55,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:37:55,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:37:55,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:37:55,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:37:55,168 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:37:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:37:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 147 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 04:37:55,752 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:37:55,753 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:37:55,753 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1093 with the following transitions: [2018-11-23 04:37:55,754 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [17], [28], [32], [36], [40], [51], [55], [59], [63], [67], [71], [82], [86], [90], [101], [105], [109], [113], [117], [121], [125], [129], [133], [137], [141], [145], [149], [153], [157], [161], [165], [169], [173], [177], [181], [185], [189], [193], [197], [201], [212], [216], [220], [227], [235], [243], [251], [259], [267], [271], [273], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2888], [2892], [2896], [2900], [2904], [2908], [2912], [2916], [2920], [2924], [2935], [2939], [2943], [2947], [2958], [2962], [2966], [2970], [2981], [2985], [2989], [2993], [2997], [3001], [3005], [3009], [3013], [3017], [3021], [3025], [3029], [3033], [3044], [3048], [3052], [3056], [3060], [3064], [3068], [3072], [3076], [3080], [3084], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3123], [3127], [3131], [3135], [3139], [3143], [3147], [3158], [3162], [3166], [3170], [3174], [3185], [3196], [3200], [3204], [3208], [3219], [3223], [3227], [3231], [3235], [3239], [3243], [3247], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3364], [3368], [3372], [3376], [3380], [3391], [3395], [3406], [3417], [3421], [3425], [3429], [3433], [3437], [3441], [3445], [3449], [3453], [3457], [3461], [3465], [3469], [3480], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3519], [3523], [3527], [3531], [3542], [3553], [3557], [3561], [3565], [3569], [3573], [3577], [3581], [3585], [3589], [3593], [3597], [3601], [3605], [3609], [3613], [3617], [3621], [3625], [3629], [3633], [3637], [3641], [3645], [3649], [3653], [3657], [3661], [3665], [3669], [3673], [3677], [3681], [3685], [3689], [3700], [3704], [3708], [3712], [3716], [3720], [3724], [3728], [3732], [3736], [3740], [3744], [3748], [3752], [3756], [3767], [3771], [3775], [3779], [3783], [3787], [3791], [3795], [3799], [3803], [3807], [3811], [3815], [3826], [3830], [3834], [3838], [3842], [3846], [3850], [3854], [3858], [3862], [3873], [3877], [3881], [3885], [3889], [3893], [3897], [3901], [3905], [3909], [3913], [3917], [3928], [3932], [3936], [3940], [3944], [3948], [3952], [3955], [3956], [3960], [3964], [3968], [3971], [3972], [3976], [3987], [3991], [3995], [3999], [4003], [4007], [4011], [4015], [4019], [4023], [4027], [4031], [4035], [4039], [4043], [4047], [4051], [4055], [4059], [4063], [4067], [4078], [4082], [4086], [4097], [4101], [4105], [4109], [4113], [4124], [4128], [4132], [4136], [4140], [4144], [4148], [4152], [4156], [4167], [4178], [4189], [4193], [4197], [4201], [4205], [4209], [4213], [4217], [4221], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4296], [4300], [4304], [4308], [4312], [4316], [4320], [4324], [4328], [4339], [4343], [4347], [4358], [4362], [4366], [4370], [4374], [4378], [4382], [4393], [4404], [4408], [4412], [4416], [4420], [4424], [4428], [4432], [4436], [4440], [4444], [4455], [4459], [4463], [4467], [4471], [4475], [4479], [4483], [4487], [4491], [4495], [4499], [4502], [4503], [4507], [4511], [4515], [4519], [4523], [4527], [4531], [4535], [4539], [4543], [4547], [4551], [4555], [4559], [4563], [4567], [4571], [4575], [4579], [4583], [4587], [4598], [4602], [4613], [4617], [4621], [4632], [4636], [4640], [4644], [4648], [4652], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4715], [4719], [4723], [4727], [4731], [4742], [4746], [4750], [4754], [4758], [4762], [4766], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4845], [4856], [4860], [4864], [4868], [4872], [4876], [4880], [4884], [4888], [4899], [4903], [4907], [4911], [4922], [4933], [4937], [4941], [4945], [4949], [4960], [4964], [4968], [4972], [4976], [4980], [4984], [4988], [4999], [5003], [5007], [5010], [5014], [5023], [5027], [5029], [5034], [5036], [5038], [5040], [5042], [5043], [5044], [5046], [5047] [2018-11-23 04:37:55,782 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 04:37:55,782 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 04:37:57,998 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 04:37:57,998 INFO L272 AbstractInterpreter]: Visited 955 different actions 1904 times. Merged at 4 different actions 4 times. Never widened. Performed 42600 root evaluator evaluations with a maximum evaluation depth of 3. Performed 42600 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-23 04:37:58,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:37:58,009 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 04:37:59,580 INFO L227 lantSequenceWeakener]: Weakened 1089 states. On average, predicates are now at 69.94% of their original sizes. [2018-11-23 04:37:59,580 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 04:38:00,543 INFO L415 sIntCurrentIteration]: We unified 1091 AI predicates to 1091 [2018-11-23 04:38:00,543 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 04:38:00,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 04:38:00,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [37] imperfect sequences [6] total 41 [2018-11-23 04:38:00,543 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:38:00,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-11-23 04:38:00,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-11-23 04:38:00,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1186, Unknown=0, NotChecked=0, Total=1332 [2018-11-23 04:38:00,545 INFO L87 Difference]: Start difference. First operand 4502 states and 6619 transitions. Second operand 37 states. [2018-11-23 04:40:11,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:40:11,856 INFO L93 Difference]: Finished difference Result 10030 states and 15297 transitions. [2018-11-23 04:40:11,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-23 04:40:11,856 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 1092 [2018-11-23 04:40:11,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:40:11,873 INFO L225 Difference]: With dead ends: 10030 [2018-11-23 04:40:11,873 INFO L226 Difference]: Without dead ends: 6547 [2018-11-23 04:40:11,879 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 1115 GetRequests, 1056 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=410, Invalid=3250, Unknown=0, NotChecked=0, Total=3660 [2018-11-23 04:40:11,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2018-11-23 04:40:11,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 6542. [2018-11-23 04:40:11,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6542 states. [2018-11-23 04:40:11,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6542 states to 6542 states and 8758 transitions. [2018-11-23 04:40:11,982 INFO L78 Accepts]: Start accepts. Automaton has 6542 states and 8758 transitions. Word has length 1092 [2018-11-23 04:40:11,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:40:11,983 INFO L480 AbstractCegarLoop]: Abstraction has 6542 states and 8758 transitions. [2018-11-23 04:40:11,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-11-23 04:40:11,983 INFO L276 IsEmpty]: Start isEmpty. Operand 6542 states and 8758 transitions. [2018-11-23 04:40:12,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2018-11-23 04:40:12,001 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:40:12,002 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:12,002 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:40:12,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:40:12,002 INFO L82 PathProgramCache]: Analyzing trace with hash -254560800, now seen corresponding path program 1 times [2018-11-23 04:40:12,002 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:40:12,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:40:12,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:40:12,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:40:12,003 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:40:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:40:12,745 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 196 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 04:40:12,746 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:40:12,746 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:40:12,746 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1118 with the following transitions: [2018-11-23 04:40:12,747 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [17], [28], [32], [36], [40], [51], [55], [59], [63], [67], [71], [82], [86], [90], [101], [105], [109], [113], [117], [121], [125], [129], [133], [137], [141], [145], [149], [153], [157], [161], [165], [169], [173], [177], [181], [185], [189], [193], [197], [201], [212], [216], [220], [227], [235], [243], [251], [259], [267], [271], [273], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2888], [2892], [2896], [2900], [2904], [2908], [2912], [2916], [2920], [2924], [2935], [2939], [2943], [2947], [2958], [2962], [2966], [2970], [2981], [2985], [2989], [2993], [2997], [3001], [3005], [3009], [3013], [3017], [3021], [3025], [3029], [3033], [3044], [3048], [3052], [3056], [3060], [3064], [3068], [3072], [3076], [3080], [3084], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3123], [3127], [3131], [3135], [3139], [3143], [3147], [3158], [3162], [3166], [3170], [3174], [3185], [3196], [3200], [3204], [3208], [3219], [3223], [3227], [3231], [3235], [3239], [3243], [3247], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3364], [3368], [3372], [3376], [3380], [3391], [3395], [3406], [3417], [3421], [3425], [3429], [3433], [3437], [3441], [3445], [3449], [3453], [3457], [3461], [3465], [3469], [3480], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3519], [3523], [3527], [3531], [3542], [3553], [3557], [3561], [3565], [3569], [3573], [3577], [3581], [3585], [3589], [3593], [3597], [3601], [3605], [3609], [3613], [3617], [3621], [3625], [3629], [3633], [3637], [3641], [3645], [3649], [3653], [3657], [3661], [3665], [3669], [3673], [3677], [3681], [3685], [3689], [3700], [3704], [3708], [3712], [3716], [3720], [3724], [3728], [3732], [3736], [3740], [3744], [3748], [3752], [3756], [3767], [3771], [3775], [3779], [3783], [3787], [3791], [3795], [3799], [3803], [3807], [3811], [3815], [3826], [3830], [3834], [3838], [3842], [3846], [3850], [3854], [3858], [3862], [3873], [3877], [3881], [3885], [3889], [3893], [3897], [3901], [3905], [3909], [3913], [3917], [3928], [3932], [3936], [3940], [3944], [3948], [3952], [3955], [3956], [3960], [3964], [3968], [3971], [3972], [3976], [3987], [3991], [3995], [3999], [4003], [4007], [4011], [4015], [4019], [4023], [4027], [4030], [4031], [4035], [4039], [4043], [4047], [4051], [4055], [4059], [4063], [4067], [4078], [4082], [4086], [4097], [4101], [4105], [4109], [4113], [4124], [4128], [4132], [4136], [4140], [4144], [4148], [4152], [4156], [4167], [4178], [4189], [4193], [4197], [4201], [4205], [4209], [4213], [4217], [4221], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4296], [4300], [4304], [4308], [4312], [4316], [4320], [4324], [4328], [4339], [4343], [4347], [4358], [4362], [4366], [4370], [4374], [4378], [4382], [4393], [4404], [4408], [4412], [4416], [4420], [4424], [4428], [4432], [4436], [4440], [4444], [4455], [4459], [4463], [4467], [4471], [4475], [4479], [4483], [4487], [4491], [4495], [4499], [4502], [4503], [4507], [4511], [4515], [4519], [4523], [4527], [4531], [4535], [4539], [4543], [4547], [4551], [4555], [4559], [4563], [4567], [4571], [4575], [4579], [4583], [4587], [4598], [4602], [4613], [4617], [4621], [4632], [4636], [4640], [4644], [4648], [4652], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4715], [4719], [4723], [4727], [4731], [4742], [4746], [4750], [4754], [4758], [4762], [4766], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4845], [4856], [4860], [4864], [4868], [4872], [4876], [4880], [4884], [4888], [4899], [4903], [4907], [4911], [4922], [4933], [4937], [4941], [4945], [4949], [4960], [4964], [4968], [4972], [4976], [4980], [4984], [4988], [4999], [5003], [5007], [5010], [5014], [5023], [5027], [5029], [5034], [5036], [5038], [5040], [5042], [5043], [5044], [5046], [5047] [2018-11-23 04:40:12,762 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 04:40:12,762 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 04:40:16,007 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 04:40:16,008 INFO L272 AbstractInterpreter]: Visited 956 different actions 2860 times. Merged at 6 different actions 12 times. Never widened. Performed 65489 root evaluator evaluations with a maximum evaluation depth of 3. Performed 65489 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-11-23 04:40:16,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:40:16,014 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 04:40:24,520 INFO L227 lantSequenceWeakener]: Weakened 1114 states. On average, predicates are now at 70.42% of their original sizes. [2018-11-23 04:40:24,520 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 04:40:25,291 INFO L415 sIntCurrentIteration]: We unified 1116 AI predicates to 1116 [2018-11-23 04:40:25,292 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 04:40:25,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 04:40:25,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [40] imperfect sequences [6] total 44 [2018-11-23 04:40:25,292 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:40:25,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-11-23 04:40:25,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-11-23 04:40:25,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1395, Unknown=0, NotChecked=0, Total=1560 [2018-11-23 04:40:25,293 INFO L87 Difference]: Start difference. First operand 6542 states and 8758 transitions. Second operand 40 states. [2018-11-23 04:43:42,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:43:42,637 INFO L93 Difference]: Finished difference Result 14116 states and 19662 transitions. [2018-11-23 04:43:42,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-23 04:43:42,638 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 1117 [2018-11-23 04:43:42,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:43:42,650 INFO L225 Difference]: With dead ends: 14116 [2018-11-23 04:43:42,651 INFO L226 Difference]: Without dead ends: 9609 [2018-11-23 04:43:42,657 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 1140 GetRequests, 1078 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=438, Invalid=3594, Unknown=0, NotChecked=0, Total=4032 [2018-11-23 04:43:42,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9609 states. [2018-11-23 04:43:42,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9609 to 9597. [2018-11-23 04:43:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9597 states. [2018-11-23 04:43:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 12050 transitions. [2018-11-23 04:43:42,800 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 12050 transitions. Word has length 1117 [2018-11-23 04:43:42,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:43:42,801 INFO L480 AbstractCegarLoop]: Abstraction has 9597 states and 12050 transitions. [2018-11-23 04:43:42,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-11-23 04:43:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 12050 transitions. [2018-11-23 04:43:42,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2018-11-23 04:43:42,823 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:43:42,824 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:43:42,824 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:43:42,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:43:42,824 INFO L82 PathProgramCache]: Analyzing trace with hash 2008418044, now seen corresponding path program 1 times [2018-11-23 04:43:42,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:43:42,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:43:42,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:43:42,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:43:42,825 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:43:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:43:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:43:44,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:43:44,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 04:43:44,483 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:43:44,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 04:43:44,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 04:43:44,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 04:43:44,484 INFO L87 Difference]: Start difference. First operand 9597 states and 12050 transitions. Second operand 4 states. [2018-11-23 04:43:48,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:43:48,835 INFO L93 Difference]: Finished difference Result 22464 states and 32225 transitions. [2018-11-23 04:43:48,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 04:43:48,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1130 [2018-11-23 04:43:48,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:43:48,870 INFO L225 Difference]: With dead ends: 22464 [2018-11-23 04:43:48,870 INFO L226 Difference]: Without dead ends: 16932 [2018-11-23 04:43:48,877 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 04:43:48,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16932 states. [2018-11-23 04:43:49,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16932 to 16839. [2018-11-23 04:43:49,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16839 states. [2018-11-23 04:43:49,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16839 states to 16839 states and 22821 transitions. [2018-11-23 04:43:49,106 INFO L78 Accepts]: Start accepts. Automaton has 16839 states and 22821 transitions. Word has length 1130 [2018-11-23 04:43:49,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:43:49,107 INFO L480 AbstractCegarLoop]: Abstraction has 16839 states and 22821 transitions. [2018-11-23 04:43:49,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 04:43:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 16839 states and 22821 transitions. [2018-11-23 04:43:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1162 [2018-11-23 04:43:49,144 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:43:49,145 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:43:49,145 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:43:49,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:43:49,148 INFO L82 PathProgramCache]: Analyzing trace with hash 809708127, now seen corresponding path program 1 times [2018-11-23 04:43:49,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:43:49,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:43:49,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:43:49,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:43:49,149 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:43:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:43:49,728 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 217 proven. 17 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 04:43:49,728 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:43:49,728 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:43:49,729 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1162 with the following transitions: [2018-11-23 04:43:49,729 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [17], [28], [32], [36], [40], [51], [55], [59], [63], [67], [71], [82], [86], [90], [101], [105], [109], [113], [117], [121], [125], [129], [133], [137], [141], [145], [149], [153], [157], [161], [165], [169], [173], [177], [181], [185], [189], [193], [197], [201], [212], [216], [220], [227], [235], [243], [251], [259], [267], [271], [273], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2888], [2892], [2896], [2900], [2904], [2908], [2912], [2916], [2920], [2924], [2935], [2939], [2943], [2947], [2958], [2962], [2966], [2970], [2981], [2985], [2989], [2993], [2997], [3001], [3005], [3009], [3013], [3017], [3021], [3025], [3029], [3033], [3044], [3048], [3052], [3056], [3060], [3064], [3068], [3072], [3076], [3080], [3084], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3123], [3127], [3131], [3135], [3139], [3143], [3147], [3158], [3162], [3166], [3170], [3174], [3185], [3196], [3200], [3204], [3208], [3219], [3223], [3227], [3231], [3235], [3239], [3243], [3247], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3364], [3368], [3372], [3376], [3380], [3391], [3395], [3406], [3417], [3421], [3425], [3429], [3433], [3437], [3441], [3445], [3449], [3453], [3457], [3461], [3465], [3469], [3480], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3519], [3523], [3527], [3531], [3542], [3553], [3557], [3561], [3565], [3569], [3573], [3577], [3581], [3585], [3589], [3593], [3597], [3601], [3605], [3609], [3613], [3617], [3621], [3625], [3629], [3633], [3637], [3641], [3645], [3649], [3653], [3657], [3661], [3665], [3669], [3673], [3677], [3681], [3685], [3689], [3700], [3704], [3708], [3712], [3716], [3720], [3724], [3728], [3732], [3736], [3740], [3744], [3748], [3752], [3756], [3767], [3771], [3775], [3779], [3783], [3787], [3791], [3795], [3799], [3803], [3807], [3811], [3815], [3826], [3830], [3834], [3838], [3842], [3846], [3850], [3854], [3858], [3862], [3873], [3877], [3881], [3885], [3889], [3893], [3897], [3901], [3905], [3909], [3913], [3917], [3928], [3932], [3936], [3940], [3944], [3948], [3952], [3956], [3959], [3960], [3963], [3964], [3968], [3971], [3972], [3976], [3987], [3991], [3995], [3999], [4003], [4007], [4011], [4015], [4019], [4023], [4027], [4031], [4035], [4039], [4043], [4047], [4051], [4055], [4059], [4063], [4067], [4078], [4082], [4086], [4097], [4101], [4105], [4109], [4113], [4124], [4128], [4132], [4136], [4140], [4144], [4148], [4152], [4156], [4167], [4178], [4189], [4193], [4197], [4201], [4205], [4209], [4213], [4217], [4221], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4296], [4300], [4304], [4308], [4312], [4316], [4320], [4324], [4328], [4339], [4343], [4347], [4358], [4362], [4366], [4370], [4374], [4378], [4382], [4393], [4404], [4408], [4412], [4416], [4420], [4424], [4428], [4432], [4436], [4440], [4444], [4455], [4459], [4463], [4467], [4471], [4475], [4479], [4483], [4487], [4491], [4495], [4499], [4503], [4507], [4511], [4515], [4519], [4523], [4527], [4531], [4535], [4539], [4543], [4547], [4551], [4555], [4559], [4563], [4567], [4571], [4575], [4579], [4583], [4587], [4598], [4602], [4613], [4617], [4621], [4632], [4636], [4640], [4644], [4648], [4652], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4715], [4719], [4723], [4727], [4731], [4742], [4746], [4750], [4754], [4758], [4762], [4766], [4769], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4845], [4856], [4860], [4864], [4868], [4872], [4876], [4880], [4884], [4888], [4899], [4903], [4907], [4911], [4922], [4933], [4937], [4941], [4945], [4949], [4960], [4964], [4968], [4972], [4976], [4980], [4984], [4988], [4999], [5003], [5007], [5010], [5014], [5023], [5027], [5029], [5034], [5036], [5038], [5040], [5042], [5043], [5044], [5046], [5047] [2018-11-23 04:43:49,744 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 04:43:49,744 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 04:43:51,767 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 04:43:51,767 INFO L272 AbstractInterpreter]: Visited 957 different actions 1906 times. Merged at 3 different actions 3 times. Never widened. Performed 43405 root evaluator evaluations with a maximum evaluation depth of 3. Performed 43405 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-23 04:43:51,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:43:51,770 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 04:43:51,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:43:51,770 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/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 04:43:51,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:43:51,777 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 04:43:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:43:52,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:43:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 232 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 04:43:52,588 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:43:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 217 proven. 17 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 04:43:53,109 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 04:43:53,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2018-11-23 04:43:53,109 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 04:43:53,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 04:43:53,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 04:43:53,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-23 04:43:53,111 INFO L87 Difference]: Start difference. First operand 16839 states and 22821 transitions. Second operand 8 states. [2018-11-23 04:43:58,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:43:58,906 INFO L93 Difference]: Finished difference Result 36121 states and 50862 transitions. [2018-11-23 04:43:58,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 04:43:58,910 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1161 [2018-11-23 04:43:58,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:43:58,965 INFO L225 Difference]: With dead ends: 36121 [2018-11-23 04:43:58,965 INFO L226 Difference]: Without dead ends: 23348 [2018-11-23 04:43:58,989 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2340 GetRequests, 2324 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2018-11-23 04:43:59,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23348 states. [2018-11-23 04:43:59,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23348 to 23262. [2018-11-23 04:43:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23262 states. [2018-11-23 04:43:59,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23262 states to 23262 states and 31080 transitions. [2018-11-23 04:43:59,339 INFO L78 Accepts]: Start accepts. Automaton has 23262 states and 31080 transitions. Word has length 1161 [2018-11-23 04:43:59,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:43:59,340 INFO L480 AbstractCegarLoop]: Abstraction has 23262 states and 31080 transitions. [2018-11-23 04:43:59,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 04:43:59,340 INFO L276 IsEmpty]: Start isEmpty. Operand 23262 states and 31080 transitions. [2018-11-23 04:43:59,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1168 [2018-11-23 04:43:59,389 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:43:59,389 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:43:59,390 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:43:59,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:43:59,390 INFO L82 PathProgramCache]: Analyzing trace with hash -2068543896, now seen corresponding path program 1 times [2018-11-23 04:43:59,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:43:59,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:43:59,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:43:59,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:43:59,391 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:43:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:44:00,191 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 208 proven. 21 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-23 04:44:00,191 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:44:00,191 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:44:00,192 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1168 with the following transitions: [2018-11-23 04:44:00,193 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [17], [28], [32], [36], [40], [51], [55], [59], [63], [67], [71], [82], [86], [90], [101], [105], [109], [113], [117], [121], [125], [129], [133], [137], [141], [145], [149], [153], [157], [161], [165], [169], [173], [177], [181], [185], [189], [193], [197], [201], [212], [216], [220], [227], [235], [243], [251], [259], [267], [271], [273], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2888], [2892], [2896], [2900], [2904], [2908], [2912], [2916], [2920], [2924], [2935], [2939], [2943], [2947], [2958], [2962], [2966], [2970], [2981], [2985], [2989], [2993], [2997], [3001], [3005], [3009], [3013], [3017], [3021], [3025], [3029], [3033], [3044], [3048], [3052], [3056], [3060], [3064], [3068], [3072], [3076], [3080], [3084], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3123], [3127], [3131], [3135], [3139], [3143], [3147], [3158], [3162], [3166], [3170], [3174], [3185], [3196], [3200], [3204], [3208], [3219], [3223], [3227], [3231], [3235], [3239], [3243], [3247], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3364], [3368], [3372], [3376], [3380], [3391], [3395], [3406], [3417], [3421], [3425], [3429], [3433], [3437], [3441], [3445], [3449], [3453], [3457], [3461], [3465], [3469], [3480], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3519], [3523], [3527], [3531], [3542], [3553], [3557], [3561], [3565], [3569], [3573], [3577], [3581], [3585], [3589], [3593], [3597], [3601], [3605], [3609], [3613], [3617], [3621], [3625], [3629], [3633], [3637], [3641], [3645], [3649], [3653], [3657], [3661], [3665], [3669], [3673], [3677], [3681], [3685], [3689], [3700], [3704], [3708], [3712], [3716], [3720], [3724], [3728], [3732], [3736], [3740], [3744], [3748], [3752], [3756], [3767], [3771], [3775], [3779], [3783], [3787], [3791], [3795], [3799], [3803], [3807], [3811], [3815], [3826], [3830], [3834], [3838], [3842], [3846], [3850], [3854], [3858], [3862], [3873], [3877], [3881], [3885], [3889], [3893], [3897], [3901], [3905], [3909], [3913], [3917], [3928], [3932], [3936], [3940], [3944], [3948], [3952], [3956], [3960], [3964], [3968], [3972], [3976], [3979], [3982], [3986], [3987], [3991], [3995], [3999], [4003], [4007], [4011], [4014], [4015], [4019], [4023], [4027], [4031], [4035], [4039], [4043], [4047], [4051], [4055], [4059], [4063], [4067], [4078], [4082], [4086], [4097], [4101], [4105], [4109], [4113], [4124], [4128], [4132], [4136], [4140], [4144], [4148], [4152], [4156], [4167], [4178], [4189], [4193], [4197], [4201], [4205], [4209], [4213], [4217], [4221], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4296], [4300], [4304], [4308], [4312], [4316], [4320], [4324], [4328], [4339], [4343], [4347], [4358], [4362], [4366], [4370], [4374], [4378], [4382], [4393], [4404], [4408], [4412], [4416], [4420], [4424], [4428], [4432], [4436], [4440], [4444], [4455], [4459], [4463], [4467], [4471], [4475], [4479], [4483], [4487], [4491], [4495], [4499], [4503], [4507], [4511], [4515], [4519], [4523], [4527], [4531], [4535], [4539], [4543], [4547], [4551], [4555], [4559], [4563], [4567], [4571], [4575], [4579], [4583], [4587], [4598], [4602], [4613], [4617], [4621], [4632], [4636], [4640], [4644], [4648], [4652], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4715], [4719], [4723], [4727], [4731], [4742], [4746], [4750], [4754], [4758], [4762], [4766], [4769], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4845], [4856], [4860], [4864], [4868], [4872], [4876], [4880], [4884], [4888], [4899], [4903], [4907], [4911], [4922], [4933], [4937], [4941], [4945], [4949], [4960], [4964], [4968], [4972], [4976], [4980], [4984], [4988], [4999], [5003], [5007], [5010], [5014], [5023], [5027], [5029], [5034], [5036], [5038], [5040], [5042], [5043], [5044], [5046], [5047] [2018-11-23 04:44:00,207 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 04:44:00,207 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 04:44:02,213 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 04:44:02,213 INFO L272 AbstractInterpreter]: Visited 956 different actions 1904 times. Merged at 3 different actions 3 times. Never widened. Performed 43420 root evaluator evaluations with a maximum evaluation depth of 3. Performed 43420 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-23 04:44:02,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:44:02,222 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 04:44:02,222 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:44:02,222 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/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 04:44:02,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:44:02,229 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 04:44:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:44:02,518 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:44:03,005 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 239 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 04:44:03,006 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:44:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 239 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 04:44:03,435 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 04:44:03,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-23 04:44:03,435 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 04:44:03,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 04:44:03,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 04:44:03,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-23 04:44:03,438 INFO L87 Difference]: Start difference. First operand 23262 states and 31080 transitions. Second operand 9 states. [2018-11-23 04:44:10,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:44:10,178 INFO L93 Difference]: Finished difference Result 82928 states and 131677 transitions. [2018-11-23 04:44:10,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 04:44:10,179 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1167 [2018-11-23 04:44:10,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:44:10,338 INFO L225 Difference]: With dead ends: 82928 [2018-11-23 04:44:10,338 INFO L226 Difference]: Without dead ends: 63732 [2018-11-23 04:44:10,381 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2355 GetRequests, 2331 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2018-11-23 04:44:10,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63732 states. [2018-11-23 04:44:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63732 to 63431. [2018-11-23 04:44:11,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63431 states. [2018-11-23 04:44:11,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63431 states to 63431 states and 95412 transitions. [2018-11-23 04:44:11,271 INFO L78 Accepts]: Start accepts. Automaton has 63431 states and 95412 transitions. Word has length 1167 [2018-11-23 04:44:11,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:44:11,271 INFO L480 AbstractCegarLoop]: Abstraction has 63431 states and 95412 transitions. [2018-11-23 04:44:11,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 04:44:11,272 INFO L276 IsEmpty]: Start isEmpty. Operand 63431 states and 95412 transitions. [2018-11-23 04:44:11,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1185 [2018-11-23 04:44:11,389 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:44:11,390 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:11,390 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:44:11,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:44:11,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1617493053, now seen corresponding path program 1 times [2018-11-23 04:44:11,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:44:11,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:44:11,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:44:11,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:44:11,392 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:44:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:44:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 227 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:44:12,389 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:44:12,389 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:44:12,390 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1185 with the following transitions: [2018-11-23 04:44:12,390 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [17], [28], [32], [36], [40], [51], [55], [59], [63], [67], [71], [82], [86], [90], [101], [105], [109], [113], [117], [121], [125], [129], [133], [137], [141], [145], [149], [153], [157], [161], [165], [169], [173], [177], [181], [185], [189], [193], [197], [201], [212], [216], [220], [227], [235], [243], [251], [259], [267], [271], [273], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2888], [2892], [2896], [2900], [2904], [2908], [2912], [2916], [2920], [2924], [2935], [2939], [2943], [2947], [2958], [2962], [2966], [2970], [2981], [2985], [2989], [2993], [2997], [3001], [3005], [3009], [3013], [3017], [3021], [3025], [3029], [3033], [3044], [3048], [3052], [3056], [3060], [3064], [3068], [3072], [3076], [3080], [3084], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3123], [3127], [3131], [3135], [3139], [3143], [3147], [3158], [3162], [3166], [3170], [3174], [3185], [3196], [3200], [3204], [3208], [3219], [3223], [3227], [3231], [3235], [3239], [3243], [3247], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3364], [3368], [3372], [3376], [3380], [3391], [3395], [3406], [3417], [3421], [3425], [3429], [3433], [3437], [3441], [3445], [3449], [3453], [3457], [3461], [3465], [3469], [3480], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3519], [3523], [3527], [3531], [3542], [3553], [3557], [3561], [3565], [3569], [3573], [3577], [3581], [3585], [3589], [3593], [3597], [3601], [3605], [3609], [3613], [3617], [3621], [3625], [3629], [3633], [3637], [3641], [3645], [3649], [3653], [3657], [3661], [3665], [3669], [3673], [3677], [3681], [3685], [3689], [3700], [3704], [3708], [3712], [3716], [3720], [3724], [3728], [3732], [3736], [3740], [3744], [3748], [3752], [3756], [3767], [3771], [3775], [3779], [3783], [3787], [3791], [3795], [3799], [3803], [3807], [3811], [3815], [3826], [3830], [3834], [3838], [3842], [3846], [3850], [3854], [3858], [3862], [3873], [3877], [3881], [3885], [3889], [3893], [3897], [3901], [3905], [3909], [3913], [3917], [3928], [3932], [3936], [3940], [3944], [3948], [3952], [3956], [3960], [3964], [3968], [3972], [3976], [3987], [3991], [3995], [3999], [4003], [4007], [4011], [4015], [4019], [4023], [4027], [4031], [4035], [4039], [4043], [4047], [4051], [4055], [4059], [4063], [4067], [4078], [4082], [4086], [4097], [4101], [4105], [4109], [4113], [4124], [4128], [4132], [4136], [4140], [4144], [4148], [4152], [4156], [4159], [4162], [4166], [4167], [4178], [4189], [4193], [4197], [4201], [4205], [4209], [4213], [4217], [4221], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4296], [4300], [4304], [4308], [4312], [4316], [4320], [4324], [4328], [4339], [4343], [4347], [4358], [4362], [4366], [4370], [4374], [4378], [4382], [4393], [4404], [4408], [4412], [4416], [4420], [4424], [4428], [4432], [4436], [4440], [4444], [4455], [4459], [4463], [4467], [4471], [4475], [4479], [4483], [4487], [4491], [4495], [4499], [4503], [4507], [4511], [4515], [4519], [4523], [4527], [4531], [4535], [4539], [4543], [4547], [4551], [4555], [4559], [4563], [4567], [4571], [4575], [4579], [4583], [4587], [4598], [4602], [4613], [4617], [4621], [4632], [4636], [4640], [4644], [4648], [4652], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4715], [4719], [4723], [4727], [4731], [4742], [4746], [4750], [4754], [4758], [4762], [4766], [4769], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4845], [4856], [4860], [4864], [4868], [4872], [4876], [4880], [4884], [4888], [4899], [4903], [4907], [4911], [4922], [4933], [4937], [4941], [4945], [4949], [4960], [4964], [4968], [4972], [4976], [4980], [4984], [4988], [4999], [5003], [5007], [5010], [5014], [5023], [5027], [5029], [5034], [5036], [5038], [5040], [5042], [5043], [5044], [5046], [5047] [2018-11-23 04:44:12,406 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 04:44:12,407 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 04:44:14,535 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 04:44:14,535 INFO L272 AbstractInterpreter]: Visited 955 different actions 1902 times. Merged at 3 different actions 3 times. Never widened. Performed 43368 root evaluator evaluations with a maximum evaluation depth of 3. Performed 43368 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-23 04:44:14,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:44:14,537 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 04:44:14,537 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:44:14,538 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/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 04:44:14,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:44:14,544 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 04:44:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:44:14,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:44:15,293 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-11-23 04:44:15,293 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:44:16,017 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-11-23 04:44:16,033 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 04:44:16,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [10] total 15 [2018-11-23 04:44:16,033 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:44:16,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 04:44:16,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 04:44:16,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-11-23 04:44:16,034 INFO L87 Difference]: Start difference. First operand 63431 states and 95412 transitions. Second operand 5 states. [2018-11-23 04:44:17,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:44:17,891 INFO L93 Difference]: Finished difference Result 183687 states and 299694 transitions. [2018-11-23 04:44:17,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 04:44:17,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1184 [2018-11-23 04:44:17,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:44:18,238 INFO L225 Difference]: With dead ends: 183687 [2018-11-23 04:44:18,238 INFO L226 Difference]: Without dead ends: 124322 [2018-11-23 04:44:18,334 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2379 GetRequests, 2360 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-11-23 04:44:18,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124322 states. [2018-11-23 04:44:19,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124322 to 123928. [2018-11-23 04:44:19,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123928 states. [2018-11-23 04:44:20,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123928 states to 123928 states and 196384 transitions. [2018-11-23 04:44:20,200 INFO L78 Accepts]: Start accepts. Automaton has 123928 states and 196384 transitions. Word has length 1184 [2018-11-23 04:44:20,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:44:20,201 INFO L480 AbstractCegarLoop]: Abstraction has 123928 states and 196384 transitions. [2018-11-23 04:44:20,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 04:44:20,201 INFO L276 IsEmpty]: Start isEmpty. Operand 123928 states and 196384 transitions. [2018-11-23 04:44:20,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2018-11-23 04:44:20,430 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:44:20,431 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:44:20,431 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:44:20,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:44:20,432 INFO L82 PathProgramCache]: Analyzing trace with hash 801120544, now seen corresponding path program 1 times [2018-11-23 04:44:20,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:44:20,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:44:20,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:44:20,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:44:20,433 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:44:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:44:21,433 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 255 proven. 69 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 04:44:21,433 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:44:21,433 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:44:21,434 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1198 with the following transitions: [2018-11-23 04:44:21,434 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [17], [28], [32], [36], [40], [51], [55], [59], [63], [67], [71], [82], [86], [90], [101], [105], [109], [113], [117], [121], [125], [129], [133], [137], [141], [145], [149], [153], [157], [161], [165], [169], [173], [177], [181], [185], [189], [193], [197], [201], [212], [216], [220], [227], [235], [243], [251], [259], [267], [271], [273], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2888], [2892], [2896], [2900], [2904], [2908], [2912], [2916], [2920], [2924], [2935], [2939], [2943], [2947], [2958], [2962], [2966], [2970], [2981], [2985], [2989], [2993], [2997], [3001], [3005], [3009], [3013], [3017], [3021], [3025], [3029], [3033], [3044], [3048], [3052], [3056], [3060], [3064], [3068], [3072], [3076], [3080], [3084], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3123], [3127], [3131], [3135], [3139], [3143], [3147], [3158], [3162], [3166], [3170], [3174], [3185], [3196], [3200], [3204], [3208], [3219], [3223], [3227], [3231], [3235], [3239], [3243], [3247], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3364], [3368], [3372], [3376], [3380], [3391], [3395], [3406], [3417], [3421], [3425], [3429], [3433], [3437], [3441], [3445], [3449], [3453], [3457], [3461], [3465], [3469], [3480], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3519], [3523], [3527], [3531], [3542], [3553], [3557], [3561], [3565], [3569], [3573], [3577], [3581], [3585], [3589], [3593], [3597], [3601], [3605], [3609], [3613], [3617], [3621], [3625], [3629], [3633], [3637], [3641], [3645], [3649], [3653], [3657], [3661], [3665], [3669], [3673], [3677], [3681], [3685], [3689], [3700], [3704], [3708], [3712], [3716], [3720], [3724], [3728], [3732], [3736], [3740], [3744], [3748], [3752], [3756], [3767], [3771], [3775], [3779], [3783], [3787], [3791], [3795], [3799], [3803], [3807], [3811], [3815], [3826], [3830], [3834], [3838], [3842], [3846], [3850], [3854], [3858], [3862], [3873], [3877], [3881], [3885], [3889], [3893], [3897], [3901], [3905], [3909], [3913], [3917], [3928], [3932], [3936], [3940], [3944], [3948], [3952], [3956], [3960], [3963], [3964], [3968], [3972], [3976], [3979], [3982], [3986], [3987], [3991], [3995], [3999], [4003], [4007], [4011], [4015], [4019], [4023], [4027], [4031], [4035], [4039], [4043], [4047], [4051], [4055], [4059], [4063], [4067], [4078], [4082], [4086], [4097], [4101], [4105], [4108], [4109], [4113], [4124], [4128], [4132], [4136], [4140], [4144], [4148], [4152], [4156], [4167], [4178], [4189], [4193], [4197], [4201], [4205], [4209], [4213], [4217], [4221], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4296], [4300], [4304], [4308], [4312], [4316], [4320], [4324], [4328], [4339], [4343], [4347], [4358], [4362], [4366], [4370], [4374], [4378], [4382], [4393], [4404], [4408], [4412], [4416], [4420], [4424], [4428], [4432], [4436], [4440], [4444], [4455], [4459], [4463], [4467], [4471], [4475], [4479], [4483], [4487], [4491], [4495], [4499], [4503], [4507], [4511], [4515], [4519], [4523], [4527], [4531], [4535], [4539], [4543], [4547], [4551], [4555], [4559], [4563], [4567], [4571], [4575], [4579], [4583], [4587], [4598], [4602], [4613], [4617], [4621], [4632], [4636], [4640], [4644], [4648], [4652], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4715], [4719], [4723], [4727], [4731], [4742], [4746], [4750], [4754], [4758], [4762], [4766], [4769], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4845], [4856], [4860], [4864], [4868], [4872], [4876], [4880], [4884], [4888], [4899], [4903], [4907], [4911], [4922], [4933], [4937], [4941], [4945], [4949], [4960], [4964], [4968], [4972], [4976], [4980], [4984], [4988], [4999], [5003], [5007], [5010], [5014], [5023], [5027], [5029], [5034], [5036], [5038], [5040], [5042], [5043], [5044], [5046], [5047] [2018-11-23 04:44:21,450 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 04:44:21,451 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 04:44:25,029 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 04:44:25,029 INFO L272 AbstractInterpreter]: Visited 957 different actions 1906 times. Merged at 3 different actions 3 times. Never widened. Performed 43399 root evaluator evaluations with a maximum evaluation depth of 3. Performed 43399 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-23 04:44:25,031 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:44:25,031 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 04:44:25,031 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:44:25,031 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/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 04:44:25,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:44:25,037 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 04:44:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:44:25,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:44:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-23 04:44:25,698 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:44:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 297 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-23 04:44:26,144 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 04:44:26,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2018-11-23 04:44:26,145 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 04:44:26,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 04:44:26,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 04:44:26,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-11-23 04:44:26,146 INFO L87 Difference]: Start difference. First operand 123928 states and 196384 transitions. Second operand 13 states. [2018-11-23 04:45:07,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:45:07,104 INFO L93 Difference]: Finished difference Result 1368223 states and 3638384 transitions. [2018-11-23 04:45:07,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-11-23 04:45:07,104 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1197 [2018-11-23 04:45:07,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:45:22,253 INFO L225 Difference]: With dead ends: 1368223 [2018-11-23 04:45:22,253 INFO L226 Difference]: Without dead ends: 1246329 [2018-11-23 04:45:23,539 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2510 GetRequests, 2430 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2268 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1106, Invalid=5374, Unknown=0, NotChecked=0, Total=6480 [2018-11-23 04:45:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246329 states. [2018-11-23 04:45:52,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246329 to 1243333. [2018-11-23 04:45:52,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1243333 states. [2018-11-23 04:46:14,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243333 states to 1243333 states and 2890411 transitions. [2018-11-23 04:46:14,967 INFO L78 Accepts]: Start accepts. Automaton has 1243333 states and 2890411 transitions. Word has length 1197 [2018-11-23 04:46:14,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:46:14,967 INFO L480 AbstractCegarLoop]: Abstraction has 1243333 states and 2890411 transitions. [2018-11-23 04:46:14,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 04:46:14,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1243333 states and 2890411 transitions. [2018-11-23 04:46:31,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1216 [2018-11-23 04:46:31,880 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:46:31,881 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:46:31,881 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:46:31,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:46:31,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1130678269, now seen corresponding path program 1 times [2018-11-23 04:46:31,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:46:31,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:46:31,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:46:31,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:46:31,882 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:46:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:46:33,131 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 337 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 04:46:33,131 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:46:33,131 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:46:33,132 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1216 with the following transitions: [2018-11-23 04:46:33,132 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [17], [28], [32], [36], [40], [51], [55], [59], [63], [67], [71], [82], [86], [90], [101], [105], [109], [113], [117], [121], [125], [129], [133], [137], [141], [145], [149], [153], [157], [161], [165], [169], [173], [177], [181], [185], [189], [193], [197], [201], [212], [216], [220], [227], [235], [243], [251], [259], [267], [271], [273], [712], [716], [720], [724], [728], [732], [736], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [842], [846], [857], [861], [865], [869], [873], [884], [888], [892], [896], [900], [904], [915], [919], [923], [927], [931], [935], [939], [950], [954], [958], [962], [966], [970], [981], [992], [1003], [1007], [1011], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1073], [1077], [1081], [1085], [1089], [1100], [1111], [1115], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1177], [1188], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1242], [1246], [1250], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1308], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1358], [1362], [1366], [1370], [1374], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1488], [1492], [1496], [1507], [1511], [1515], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1637], [1641], [1645], [1649], [1653], [1657], [1661], [1665], [1669], [1673], [1684], [1695], [1699], [1703], [1707], [1711], [1722], [1733], [1737], [1741], [1752], [1756], [1760], [1764], [1768], [1772], [1776], [1780], [1784], [1788], [1792], [1796], [1800], [1811], [1815], [1819], [1823], [1827], [1831], [1835], [1839], [1843], [1847], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1948], [1952], [1956], [1967], [1971], [1975], [1979], [1983], [1987], [1991], [1995], [2006], [2010], [2021], [2025], [2029], [2033], [2044], [2048], [2059], [2063], [2067], [2071], [2075], [2079], [2083], [2094], [2098], [2102], [2106], [2110], [2114], [2118], [2122], [2126], [2130], [2134], [2138], [2142], [2153], [2157], [2161], [2165], [2169], [2173], [2184], [2195], [2199], [2210], [2214], [2218], [2222], [2226], [2230], [2234], [2238], [2242], [2246], [2250], [2254], [2258], [2262], [2266], [2270], [2274], [2278], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2372], [2376], [2380], [2384], [2388], [2392], [2396], [2400], [2404], [2408], [2412], [2423], [2427], [2438], [2442], [2446], [2450], [2454], [2458], [2462], [2466], [2470], [2474], [2485], [2489], [2493], [2497], [2501], [2512], [2516], [2520], [2524], [2528], [2532], [2536], [2540], [2544], [2548], [2552], [2556], [2560], [2571], [2575], [2579], [2583], [2587], [2591], [2595], [2599], [2603], [2607], [2611], [2622], [2626], [2630], [2634], [2638], [2642], [2646], [2650], [2654], [2658], [2669], [2673], [2684], [2688], [2692], [2696], [2700], [2704], [2708], [2712], [2716], [2720], [2724], [2728], [2732], [2736], [2747], [2751], [2762], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2888], [2892], [2896], [2900], [2904], [2908], [2912], [2916], [2920], [2924], [2935], [2939], [2943], [2947], [2958], [2962], [2966], [2970], [2981], [2985], [2989], [2993], [2997], [3001], [3005], [3009], [3013], [3017], [3021], [3025], [3029], [3033], [3044], [3048], [3052], [3056], [3060], [3064], [3068], [3072], [3076], [3080], [3084], [3088], [3092], [3096], [3100], [3104], [3108], [3112], [3123], [3127], [3131], [3135], [3139], [3143], [3147], [3158], [3162], [3166], [3170], [3174], [3185], [3196], [3200], [3204], [3208], [3219], [3223], [3227], [3231], [3235], [3239], [3243], [3247], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3364], [3368], [3372], [3376], [3380], [3391], [3395], [3406], [3417], [3421], [3425], [3429], [3433], [3437], [3441], [3445], [3449], [3453], [3457], [3461], [3465], [3469], [3480], [3484], [3488], [3492], [3496], [3500], [3504], [3508], [3519], [3523], [3527], [3531], [3542], [3553], [3557], [3561], [3565], [3569], [3573], [3577], [3581], [3585], [3589], [3593], [3597], [3601], [3605], [3609], [3613], [3617], [3621], [3625], [3629], [3633], [3637], [3641], [3645], [3649], [3653], [3657], [3661], [3665], [3669], [3673], [3677], [3681], [3685], [3689], [3700], [3704], [3708], [3712], [3716], [3720], [3724], [3728], [3732], [3736], [3740], [3744], [3748], [3752], [3756], [3767], [3771], [3775], [3779], [3783], [3787], [3791], [3795], [3799], [3803], [3807], [3811], [3815], [3826], [3830], [3834], [3838], [3842], [3846], [3850], [3854], [3858], [3862], [3873], [3877], [3881], [3885], [3889], [3893], [3897], [3901], [3905], [3909], [3913], [3917], [3928], [3932], [3936], [3940], [3944], [3948], [3952], [3956], [3960], [3963], [3964], [3968], [3972], [3975], [3976], [3987], [3991], [3995], [3999], [4003], [4007], [4011], [4015], [4019], [4023], [4027], [4031], [4035], [4039], [4043], [4047], [4051], [4055], [4059], [4063], [4067], [4078], [4082], [4086], [4097], [4101], [4105], [4109], [4113], [4124], [4128], [4132], [4136], [4140], [4144], [4148], [4152], [4156], [4167], [4178], [4189], [4193], [4197], [4201], [4205], [4209], [4213], [4217], [4220], [4221], [4232], [4236], [4240], [4244], [4248], [4252], [4256], [4260], [4264], [4268], [4272], [4276], [4280], [4284], [4288], [4292], [4296], [4300], [4304], [4308], [4312], [4316], [4320], [4324], [4328], [4339], [4343], [4347], [4358], [4362], [4366], [4370], [4374], [4378], [4382], [4393], [4404], [4408], [4412], [4416], [4420], [4424], [4428], [4432], [4436], [4440], [4444], [4455], [4459], [4463], [4467], [4471], [4475], [4479], [4483], [4487], [4491], [4495], [4499], [4503], [4507], [4511], [4515], [4519], [4523], [4527], [4531], [4535], [4539], [4543], [4547], [4551], [4555], [4559], [4563], [4567], [4571], [4575], [4579], [4583], [4587], [4598], [4602], [4613], [4617], [4621], [4632], [4636], [4640], [4644], [4648], [4652], [4656], [4660], [4664], [4668], [4672], [4676], [4680], [4684], [4688], [4692], [4696], [4700], [4704], [4715], [4719], [4723], [4727], [4731], [4742], [4746], [4750], [4754], [4758], [4762], [4766], [4769], [4770], [4774], [4778], [4782], [4786], [4790], [4794], [4798], [4802], [4806], [4810], [4814], [4818], [4822], [4826], [4830], [4834], [4845], [4856], [4860], [4864], [4868], [4872], [4876], [4880], [4884], [4888], [4899], [4903], [4907], [4911], [4922], [4933], [4937], [4941], [4945], [4949], [4960], [4964], [4968], [4972], [4976], [4980], [4984], [4988], [4999], [5003], [5007], [5010], [5014], [5023], [5027], [5029], [5034], [5036], [5038], [5040], [5042], [5043], [5044], [5046], [5047] [2018-11-23 04:46:33,144 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 04:46:33,144 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 04:46:35,072 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 04:46:35,072 INFO L272 AbstractInterpreter]: Visited 957 different actions 1906 times. Merged at 3 different actions 3 times. Never widened. Performed 43407 root evaluator evaluations with a maximum evaluation depth of 3. Performed 43407 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-23 04:46:35,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:46:35,074 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 04:46:35,074 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:46:35,074 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7b4c81cf-94a8-48f9-a5b2-5ab9acadee4e/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 04:46:35,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:46:35,081 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 04:46:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:46:35,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:46:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 351 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 04:46:35,902 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:46:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 337 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-23 04:46:36,340 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 04:46:36,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-23 04:46:36,341 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 04:46:36,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 04:46:36,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 04:46:36,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-23 04:46:36,343 INFO L87 Difference]: Start difference. First operand 1243333 states and 2890411 transitions. Second operand 9 states.